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Ohene-Botwe B, Amedu C, Antwi WK, Abdul-Razak W, Kyei KA, Arkoh S, Mudadi LS, Mushosho EY, Bwanga O, Chinene B, Nyawani P, Mutandiro LC, Piersson AD. Promoting sustainability activities in clinical radiography practice and education in resource-limited countries: A discussion paper. Radiography (Lond) 2024; 30 Suppl 1:56-61. [PMID: 38905726 DOI: 10.1016/j.radi.2024.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/23/2024]
Abstract
OBJECTIVE Urgent global action is required to combat climate change, with radiographers poised to play a significant role in reducing healthcare's environmental impact. This paper explores radiography-related activities and factors in resource-limited departments contributing to the carbon footprint and proposes strategies for mitigation. The rationale is to discuss the literature regarding these contributing factors and to raise awareness about how to promote sustainability activities in clinical radiography practice and education in resource-limited countries. KEY FINDINGS The radiography-related activities and factors contributing to the carbon footprint in resource-limited countries include the use of old equipment and energy inefficiency, insufficient clean energy to power equipment, long-distance commuting for radiological examinations, high film usage and waste, inadequate training and research on sustainable practices, as well as limited policies to drive support for sustainability. Addressing these issues requires a multifaceted approach. Firstly, financial assistance and partnerships are needed to adopt eco-friendly technologies and clean energy sources to power equipment, thus tackling issues related to old equipment and energy inefficiency. Transitioning to digital radiography can mitigate the environmental impact of high film usage and waste, while collaboration between governments, healthcare organisations, and international stakeholders can improve access to radiological services, reducing long-distance commuting. Additionally, promoting education programmes and research efforts in sustainability will empower radiographers with the knowledge to practice sustainably, complemented by clear policies such as green imaging practices to guide and incentivise the adoption of sustainable practices. These integrated solutions can significantly reduce the carbon footprint of radiography activities in resource-limited settings while enhancing healthcare delivery. CONCLUSION Radiography-related activities and factors in resource-limited departments contributing to the carbon footprint are multifaceted but can be addressed through concerted efforts. IMPLICATIONS FOR PRACTICE Addressing the challenges posed by old equipment, energy inefficiency, high film usage, and inadequate training through collaborative efforts and robust policy implementation is essential for promoting sustainable radiography practices in resource-limited countries. Radiographers in these countries need to be aware of these factors contributing to the carbon footprint and begin to work with the relevant stakeholders to mitigate them. Furthermore, there is a need for them to engage in education programmes and research efforts in sustainability to empower them with the right knowledge and understanding to practice sustainably.
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Affiliation(s)
- B Ohene-Botwe
- Department of Midwifery & Radiography, School of Health & Psychological Sciences, City, University of London, Northampton Square, London EC1V 0HB, United Kingdom.
| | - C Amedu
- Department of Midwifery & Radiography, School of Health & Psychological Sciences, City, University of London, Northampton Square, London EC1V 0HB, United Kingdom.
| | - W K Antwi
- Department of Radiography, School of Biomedical & Allied Health Sciences, University of Ghana, Ghana.
| | - W Abdul-Razak
- Department of Medical Imaging, Fatima College of Health Sciences, AI Ain, United Arab Emirates.
| | - K A Kyei
- Department of Radiography, School of Biomedical & Allied Health Sciences, University of Ghana, Ghana.
| | - S Arkoh
- Department of Radiology, York and Scarborough Teaching Hospitals NHS Trust, United Kingdom.
| | - L-S Mudadi
- Royal Papworth Hospital, NHS Foundation Trust, Cambridge, United Kingdom.
| | - E Y Mushosho
- Harare Institute of Technology, School of Allied Health Sciences, Harare, Zimbabwe.
| | - O Bwanga
- Radiology Department, Midlands University Hospital Tullamore, Ireland.
| | - B Chinene
- Harare Institute of Technology, School of Allied Health Sciences, Harare, Zimbabwe.
| | - P Nyawani
- Harare Institute of Technology, School of Allied Health Sciences, Harare, Zimbabwe.
| | - L C Mutandiro
- Harare Institute of Technology, School of Allied Health Sciences, Harare, Zimbabwe.
| | - A D Piersson
- Department of Imaging Technology & Sonography, University of Cape Coast, Central Region, Ghana.
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Ansari SA, Bhattacharyya A, Mohapatra PK, Verma PK, Urkude RR, Egberink RJM, Verboom W. Understanding the Complexation of Alkyl-Substituted Nitrilotriacetamides with Uranium: A Study by Absorption Spectroscopy and Microcalorimetry. Inorg Chem 2024; 63:11270-11278. [PMID: 38842429 DOI: 10.1021/acs.inorgchem.4c01123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Complexation thermodynamics of UO22+ ions with a series of alkyl-substituted nitrilotriacetamides (NTA) was investigated by absorption spectroscopy and microcalorimetry. The hexamethyl derivative of NTA (HMNTA) forms the weakest two successive complexes with UO22+ ions with stability constants of log β11 = 3.5 ± 0.1 and log β12 = 6.1 ± 0.1. The formation constant values increased linearly with increasing alkyl chain length of the substituents from hexamethyl NTA to hexabutyl NTA (HBNTA) and to hexahexyl NTA (HHNTA). The complexation with each ligand was both enthalpy and entropy driven with exothermic enthalpy changes of ΔH11 = -14.7 ± 1.0 kJ/mol, ΔH12 = -10.2 ± 0.8 kJ/mol for HMNTA, ΔH11 = -19.2 ± 1.2 kJ/mol, ΔH12 = -16.4 ± 1.1 kJ/mol for HBNTA, and ΔH11 = -21.3 ± 1.4 kJ/mol, ΔH12 = -19.4 ± 2.3 kJ/mol for HHNTA. Similarly, the positive entropy changes with each ligand were ΔS11 = 18.1 ± 2.7 J/mol/K, ΔS12 = 82.9 ± 3.8 J/mol/K for HMNTA, ΔS11 = 14.4 ± 1.2 J/mol/K, ΔS12 = 87.2 ± 4.2 J/mol/K for HBNTA, and ΔS11 = 16.1 ± 2.4 J/mol/K, ΔS12 = 92.6 ± 3.1 J/mol/K for HHNTA. Structural features of the complex suggest the participation of two ligands coordinating in a bidentate mode via the carbonyl oxygens. The [UO2L2]2+ complexes appear to be noncentrosymmetric with two ligands and one water molecule occupying the equatorial plane of the dioxo uranyl cation. The structure of the complex was confirmed by 1H NMR titration, EXAFS measurements, and DFT calculations.
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Affiliation(s)
- Seraj A Ansari
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | | | | | - Parveen K Verma
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Rajashri R Urkude
- Beamline Development and Application Section, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Richard J M Egberink
- Laboratory of Molecular Nanofabrication, Department of Molecules & Materials, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Willem Verboom
- Laboratory of Molecular Nanofabrication, Department of Molecules & Materials, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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Seewald M, Nielinger L, Alker K, Behnke JS, Wycisk V, Urner LH. Detergent Chemistry Modulates the Transgression of Planetary Boundaries including Antimicrobial Resistance and Drug Discovery. Angew Chem Int Ed Engl 2024; 63:e202403833. [PMID: 38619211 DOI: 10.1002/anie.202403833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 04/16/2024]
Abstract
Detergent chemistry enables applications in the world today while harming safe operating spaces that humanity needs for survival. Aim of this review is to support a holistic thought process in the design of detergent chemistry. We harness the planetary boundary concept as a framework for literature survey to identify progresses and knowledge gaps in context with detergent chemistry and five planetary boundaries that are currently transgressed, i.e., climate, freshwater, land system, novel entities, biosphere integrity. Our survey unveils the status of three critical challenges to be addressed in the years to come, including (i) the implementation of a holistically, climate-friendly detergent industry; (ii) the alignment of materialistic and social aspects in creating technical solutions by means of sustainable chemistry; (iii) the development of detergents that serve the purpose of applications but do not harm the biosphere in their role as novel entities. Specifically, medically relevant case reports revealed that even the most sophisticated detergent design cannot sufficiently accelerate drug discovery to outperform the antibiotic resistance development that detergents simultaneously promote as novel entities. Safe operating spaces that humanity needs for its survival may be secured by directing future efforts beyond sustainable chemistry, resource efficiency, and net zero emission targets.
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Affiliation(s)
- Marc Seewald
- TU Dortmund University, Department of Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Lena Nielinger
- TU Dortmund University, Department of Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Katharina Alker
- TU Dortmund University, Department of Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Jan-Simon Behnke
- TU Dortmund University, Department of Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Virginia Wycisk
- TU Dortmund University, Department of Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Leonhard H Urner
- TU Dortmund University, Department of Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
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Qin Y, Zhao W, Xia C, Yu LJ, Song F, Zhang J, Wu T, Cao R, Ding S, Xia BY, Su Y. CO Intermediate-Assisted Dynamic Cu Sintering During Electrocatalytic CO 2 Reduction on Cu-N-C Catalysts. Angew Chem Int Ed Engl 2024; 63:e202404763. [PMID: 38588210 DOI: 10.1002/anie.202404763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
The electrochemical CO2 reduction reaction (eCO2RR) to multicarbon products has been widely recognized for Cu-based catalysts. However, the structural changes in Cu-based catalysts during the eCO2RR pose challenges to achieving an in-depth understanding of the structure-activity relationship, thereby limiting catalyst development. Herein, we employ constant-potential density functional theory calculations to investigate the sintering process of Cu single atoms of Cu-N-C single-atom catalysts into clusters under eCO2RR conditions. Systematic constant-potential ab initio molecular dynamics simulations revealed that the leaching of Cu-(CO)x moieties and subsequent agglomeration into clusters can be facilitated by synergistic adsorption of H and eCO2RR intermediates (e.g., CO). Increasing the Cu2+ concentration or the applied potential can efficiently suppress Cu sintering. Both microkinetic simulations and experimental results further confirm that sintered Cu clusters play a crucial role in generating C2 products. These findings provide significant insights into the dynamic evolution of Cu-based catalysts and the origin of their activity toward C2 products during the eCO2RR.
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Affiliation(s)
- Yanyang Qin
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, 710049, Xi'an, China
| | - Wenshan Zhao
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, 710049, Xi'an, China
| | - Chenfeng Xia
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology (HUST), 430074, Wuhan, China
| | - Li-Juan Yu
- Research School of Chemistry, Australian National University, 2601, Canberra, ACT, Australia
| | - Fei Song
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201800, Shanghai, China
| | - Jianrui Zhang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, 710049, Xi'an, China
| | - Tiantian Wu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, 710049, Xi'an, China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Shujiang Ding
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, 710049, Xi'an, China
| | - Bao Yu Xia
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology (HUST), 430074, Wuhan, China
| | - Yaqiong Su
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, 710049, Xi'an, China
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5
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Li G, Liu S, Jiao W, Feng S, Zhan L, Chen Y. Numerical investigation and optimal design of capillary barrier cover with passive gas collection pipes on the performance at limiting landfill gas emissions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172421. [PMID: 38614334 DOI: 10.1016/j.scitotenv.2024.172421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/06/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Relying solely on soil properties may not fully ensure the performance of capillary barrier covers at limiting landfill gas (LFG) emissions. This study proposed to install passive gas collection pipes in the coarse-grained soil layers of capillary barrier covers to enhance their performance at limiting LFG emissions. First, the LFG generation rate of municipal solid waste and its influencing factors were analyzed based on empirical formulas. This information provided necessary bottom boundary conditions for the analyses of LFG transport through capillary barrier covers with passive gas collection pipes (CBCPPs). Then, numerical simulations were conducted to investigate the LFG transport properties through CBCPPs and reveal relevant influencing factors. Finally, practical suggestions were proposed to optimize the design of CBCPPs. The results indicated that the maximum whole-site LFG generation rate occurred at the end of landfilling operation. The gas collection efficiency (E) of CBCPPs was mainly controlled by the ratio of the intrinsic permeability between the coarse- and fine-grained soil (K2/K1) and the laying spacing between gas collection pipes (D). E increased as K2/K1 increased but decreased as D increased. An empirical expression for estimating E based on K2/K1 and D was proposed. In practice, CBCPPs were supposed to be constructed once the landfilling operation finished. It is best to select the fine- and coarse-grained soils with K2/K1 exceeding 10,000 to construct CBCPPs.
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Affiliation(s)
- Guangyao Li
- Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China; Chongqing Research Institute, Beijing University of Technology, Chongqing 401151, China; MOE Key Laboratory of Soft Soils and Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Sida Liu
- Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China; Chongqing Research Institute, Beijing University of Technology, Chongqing 401151, China
| | - Weiguo Jiao
- School of Civil Engineering, Guizhou Institute of Technology, Guiyang 550003, China
| | - Song Feng
- College of Civil Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Liangtong Zhan
- MOE Key Laboratory of Soft Soils and Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yunmin Chen
- MOE Key Laboratory of Soft Soils and Environmental Engineering, Zhejiang University, Hangzhou 310058, China
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Li K, Zhang X, Li C, Liang YC, Zhao XQ, Liu CG, Sinskey AJ, Bai FW. Systems metabolic engineering of Corynebacterium glutamicum to assimilate formic acid for biomass accumulation and succinic acid production. BIORESOURCE TECHNOLOGY 2024; 402:130774. [PMID: 38701983 DOI: 10.1016/j.biortech.2024.130774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/06/2024]
Abstract
Formate as an ideal mediator between the physicochemical and biological realms can be obtained from electrochemical reduction of CO2 and used to produce bio-chemicals. Yet, limitations arise when employing natural formate-utilizing microorganisms due to restricted product range and low biomass yield. This study presents a breakthrough: engineered Corynebacterium glutamicum strains (L2-L4) through modular engineering. L2 incorporates the formate-tetrahydrofolate cycle and reverse glycine cleavage pathway, L3 enhances NAD(P)H regeneration, and L4 reinforces metabolic flux. Metabolic modeling elucidates C1 assimilation, guiding strain optimization for co-fermentation of formate and glucose. Strain L4 achieves an OD600 of 0.5 and produces 0.6 g/L succinic acid. 13C-labeled formate confirms C1 assimilation, and further laboratory evolution yields 1.3 g/L succinic acid. This study showcases a successful model for biologically assimilating formate in C. glutamicum that could be applied in C1-based biotechnological production, ultimately forming a formate-based bioeconomy.
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Affiliation(s)
- Kai Li
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xue Zhang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Cheng Li
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Disruptive & Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, Singapore 138602, Singapore
| | - Yu-Cheng Liang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xin-Qing Zhao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chen-Guang Liu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Anthony J Sinskey
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Disruptive & Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, Singapore 138602, Singapore
| | - Feng-Wu Bai
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
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Hasanah A, Wu J. Exploring dynamics relationship between carbon emissions and eco-environmental quality in Samarinda Metropolitan Area: A spatiotemporal approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172188. [PMID: 38575022 DOI: 10.1016/j.scitotenv.2024.172188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/30/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Carbon emissions have a negative impact on climate change. Environmental quality has faced significant challenges in the last decades. Eco-environmental quality helps assess the condition of the ecological environment to support humans' civilization and development. By using emissions raster dataset, remote sensing images, and LULC data, this study explores the status of carbon emissions (CE), eco-environmental quality (RSEICs), and the dynamic relationship between both variables in Samarinda Metropolitan Area, Indonesia. This study uses the spatiotemporal approach to deepen the understanding of CE-RSEICs during 2000-2021. The methods include the analysis of CE and the principal component of RSEICs. To understand the CE-RSEICs spatial features, the directional distribution ellipse method is used. Also, this study performs CE-RSEICs coupling analysis and identifies its LULC type composition. The findings show that CE status is still on an increasing trend, concentrating in the eastern region and keeping expanding during the period. The location of the low-emission ellipse is in the southwest, while the high-emission ellipse is in the east and intersects with the core cities. The mean RSEICs value is between 0.2878 to 0.4223, which indicates that the eco-environmental quality is categorized as fairly poor to inferior. Greenness, wetness, and Csink have a positive impact on RSEICs. The very poor-class ellipse is located in the inland region, and the very good-class ellipse is in the coastal area. The CE-RSEICs coupling status shows that the majority of the area has a weaker coupling degree. However, the higher coupling degree is concentrated in the population center and built-up region, which is the settlement area. The dominance composition of settlement area in higher coupling degree shows that settlement area has an impact on increasing CE-RSEICs coupling degree. So, sustainable low carbon development in coastal metropolitan area must continue to be carried out by considering CE-RSEICs and its spatial aspects.
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Affiliation(s)
- Ainun Hasanah
- Department of Urban and Rural Planning, School of Urban Design, Wuhan University, Wuhan 430072, China.
| | - Jing Wu
- Department of Urban and Rural Planning, School of Urban Design, Wuhan University, Wuhan 430072, China; Hubei Habitat Environment Research Centre of Engineering and Technology, Wuhan 430072, China.
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Wu W, Li Z, Liu G, Zhou L, Wang W. Regulation on C2-C8 carboxylic acid biosynthesis from anaerobic CO 2 fermentation. Eng Life Sci 2024; 24:2200069. [PMID: 38708418 PMCID: PMC11065331 DOI: 10.1002/elsc.202200069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/24/2022] [Accepted: 12/01/2022] [Indexed: 12/15/2022] Open
Abstract
Bioconversion of CO2 into liquid fuels or chemicals, preferred medium chain carboxylic acids (caproic and caprylic acid), is an attractive CO2 utilization technology. The present study aims to investigate the effects of different ratios of H2/CO2 on regulating the distribution of C2-C8 carboxylic acid products, while the headspace pressure of 1.5 bar was set to amplify the effect of different ratios. The H2/CO2 ratio of 4:1 was more suitable for preparing acetic acid, where the highest acetic acid yield was 17.5 g/L. And the H2/CO2 ratio of 2:1 showed excellent chain elongation ability with the highest n-caprylic yield of 2.4 g/L. Additionally, the actual H2/CO2 ratios of 4:1 reactors were higher than that in 2:1 may be course chain elongation often accompanied by H2 production. The 16S rRNA genes analysis shows that the genus Terrisporobacter and Coriobacteriales may be related to acetic acid production enriched in H2/CO2 ratio 4:1 reactors, and the genus Clostridium and Paenibacillaceae may associate with the chain elongation pathway were enriched in H2/CO2 ratio 2:1 reactors.
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Affiliation(s)
- Wanling Wu
- College of Chemical EngineeringBeijing University of Chemical TechnologyBeijingChina
- Biomass Energy and Environmental Engineering Research CenterBeijing University of Chemical TechnologyBeijingChina
| | - Zhiqi Li
- College of Chemical EngineeringBeijing University of Chemical TechnologyBeijingChina
| | - Guangqing Liu
- Biomass Energy and Environmental Engineering Research CenterBeijing University of Chemical TechnologyBeijingChina
| | - Ling Zhou
- Modern Agricultural Engineering Key Laboratory at Universities of Education Department of Xinjiang Uygur Autonomous RegionTarim UniversityAlarXinjiangChina
| | - Wen Wang
- College of Chemical EngineeringBeijing University of Chemical TechnologyBeijingChina
- Biomass Energy and Environmental Engineering Research CenterBeijing University of Chemical TechnologyBeijingChina
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9
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Rahmani S, Goli A, Zackery A. Biodiesel supply chain network design: a comprehensive review with qualitative and quantitative insights. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:34787-34816. [PMID: 38733441 DOI: 10.1007/s11356-024-33392-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 04/16/2024] [Indexed: 05/13/2024]
Abstract
The global community is actively pursuing alternative energy sources to mitigate environmental concerns and decrease dependence on fossil fuels. Biodiesel, recognized as a clean and eco-friendly fuel with advantages over petroleum-based alternatives, has been identified as a viable substitute. However, its commercialization encounters challenges due to costly production processes. Establishing a more efficient supply chain for mass production and distribution could surmount these obstacles, rendering biodiesel a cost-effective solution. Despite numerous review articles across various renewable energy supply chain domains, there remains a gap in the literature specifically addressing the biodiesel supply chain network design. This research entails a comprehensive systematic literature review (SLR) focusing on the design of biodiesel supply chain networks. The primary objective is to formulate an economically, environmentally, and socially optimized supply chain framework. The review also seeks to offer a holistic overview of pertinent technical terms and key activities involved in these supply chains. Through this SLR, a thorough examination and synthesis of existing literature will yield valuable insights into the design and optimization of biodiesel supply chains. Additionally, it will identify critical research gaps in the field, proposing the exploration of fourth-generation feedstocks, integration of multi-channel chains, and the incorporation of sustainability and resilience aspects into the supply chain network design. These proposed areas aim to address existing knowledge gaps and enhance the overall effectiveness of biodiesel supply chain networks.
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Affiliation(s)
- Sourena Rahmani
- Department of Industrial Engineering and Futures Studies, Faculty of Engineering, University of Isfahan, Isfahan, Iran
| | - Alireza Goli
- Department of Industrial Engineering and Futures Studies, Faculty of Engineering, University of Isfahan, Isfahan, Iran.
| | - Ali Zackery
- Department of Industrial Engineering and Futures Studies, Faculty of Engineering, University of Isfahan, Isfahan, Iran
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10
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Zhao J, Li X, Chen L, Liu W, Wang M. Scenario analysis of the eco-efficiency for municipal solid waste management: A case study of 211 cities in western China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:170536. [PMID: 38309359 DOI: 10.1016/j.scitotenv.2024.170536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/23/2024] [Accepted: 01/26/2024] [Indexed: 02/05/2024]
Abstract
Mitigating greenhouse gas (GHG) emissions is vital for creating sustainable municipal solid waste management systems (MSWMS). In this study, we constructed an MSWMS considering recycling and carried out GHG emission accounting for MSWMS in western China from 2012 to 2021 based on the IPCC mass balance (MB) method. Then, we modeled the emission reduction potentials and economic benefits under different scenarios for 211 prefectural and county-level cities. We formed an eco-efficiency analysis framework that can be used to explore the sustainable development mode. Results revealed that: (1) Emissions from the western region's municipal solid waste (MSW) disposal exhibit an inverted "U" pattern, increasing at an annual rate of about 1.3 % since 2012, peaking in 2019, and then decreasing at rates of 14.4 % and 10.6 %. (2) The GHG emissions show a spatial pattern of decreasing evolution from east to west and south to north, and the provincial-municipal level shows different trends. (3) The SB3 scenario (optimization of landfill gas power generation technology) was the most ecologically efficient in 43 % of the western cities, followed by SB4 (33 %) and SA3 (24 %). (4) The development of integrated urban domestic waste management strategies by the three-level scenarios derived from this study will help local governments achieve the goal of sustainable urban development. Clarifying the differences in GHG emissions and eco-efficiency among cities will help provide policy recommendations for regions with similar characteristics to explore technically applicable, economically affordable implementation paths for city management according to local conditions.
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Affiliation(s)
- Jingyi Zhao
- College of Management Science, Chengdu University of Technology, Chengdu 610059, China
| | - Xin Li
- College of Management Science, Chengdu University of Technology, Chengdu 610059, China.
| | - Lu Chen
- College of Management Science, Chengdu University of Technology, Chengdu 610059, China.
| | - Wei Liu
- College of Management Science, Chengdu University of Technology, Chengdu 610059, China
| | - Minxi Wang
- College of Management Science, Chengdu University of Technology, Chengdu 610059, China
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11
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Fang G, Huang M, Sun C. Revealing the hidden carbon flows in global industrial Sectors-Based on the perspective of linkage network structure. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120531. [PMID: 38479285 DOI: 10.1016/j.jenvman.2024.120531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/16/2024] [Accepted: 02/29/2024] [Indexed: 04/07/2024]
Abstract
This paper interprets the implicit carbon flows in global industrial sectors from a network perspective. Using the SNA-IO integrated model, along with cross-border input-output data from Eora26 (2000-2020) and global energy balance data, the implicit carbon emissions of global industrial sectors and their evolution are analyzed. A carbon emission network structure from an industrial chain perspective is proposed. The results indicate that the carbon emissions responsibility of an industry is not only associated with its own energy consumption. It also involves the carbon emissions transfer resulting from the exchange of products and services between upstream and downstream industries. Block model analysis reveals the carbon emission transfer relationships and their interconnections among global industrial sectors, tending towards an industry clustering pattern where "production side" converges with "demand side" coexisting in supply and demand. There are noticeable inequalities in wealth gains and environmental burdens between these blocks. This paper can provide targeted carbon reduction policy recommendations for various industrial sectors to participate in global responsibility allocation and promote the formation of a low-carbon global industrial sector network.
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Affiliation(s)
- Guochang Fang
- School of Applied Mathematics, Nanjing University of Finance and Economics, Nanjing, Jiangsu, 210023, China; School of Economics, Nanjing University of Finance and Economics, Nanjing, Jiangsu, 210023, China.
| | - Meng Huang
- School of Economics, Nanjing University of Finance and Economics, Nanjing, Jiangsu, 210023, China.
| | - Chuanwang Sun
- China Center for Energy Economics Research, School of Economics, Xiamen University, Fujian, Xiamen 361005, China.
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12
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Burns M, Tang H, Larson RA, Qin M. Bioelectrochemically-assisted ammonia recovery from dairy manure. WATER RESEARCH 2024; 252:121243. [PMID: 38330718 DOI: 10.1016/j.watres.2024.121243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/19/2024] [Accepted: 01/30/2024] [Indexed: 02/10/2024]
Abstract
The sustainability of direct land application of dairy manure is challenged by significant nutrient losses. Bioelectrochemical systems for ammonia recovery offer a manure management strategy that can recover both ammoniacal and organic nitrogen as a stable ammonia fertilizer. In this research, a microbial fuel cell (MFC) was used to treat two types of dairy manure under a variety of imposed anode compartment conditions. The system achieved a maximum coulombic efficiency of 20 ± 18 % and exhibited both COD and total nitrogen removals of approximately 60 %. Furthermore, the MFC showed a maximum organic nitrogen removal of 73.8 ± 12.1 %, and no differences in organic nitrogen (orgN) removal were detected among different conditions tested. Decreasing concentrations of anolyte ammonia nitrogen coupled with the observed orgN removal from the anolyte indicate that the MFC is effective at recovering orgN in dairy manure as ammoniacal nitrogen in the catholyte. Additionally, ion competition between NH4+ and other relevant cations (Na+, K+, and Mg2+) for transport across the CEM was investigated, with only K+ showing minor competitive effects. Based on the results of this research, we propose three key processes and two sub-processes that contribute to the successful operation of the MFC for nitrogen recovery from dairy manure. Bioelectrochemical systems for nitrogen recovery from dairy manure offer a novel, robust technology for producing a valuable ammonia nitrogen fertilizer, a thus far untapped resource in dairy manure streams.
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Affiliation(s)
- McKenzie Burns
- Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Hanyu Tang
- Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Rebecca A Larson
- Nelson Institute for Environmental Studies, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Mohan Qin
- Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
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13
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Zhang P, Ma B, Zheng G, Li F, Zhang W, Gu J, Liu Z, Li K, Wang H. Unveiling the greenhouse gas emissions of drinking water treatment plant throughout the construction and operation stages based on life cycle assessment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 272:116043. [PMID: 38295736 DOI: 10.1016/j.ecoenv.2024.116043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/09/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024]
Abstract
The carbon peaking and carbon neutrality targets proposed by the Chinese government have initiated a green transformation that is full of challenges and opportunities and endowed sustainable development strategy for combating global warming issue. It is essential to execute comprehensive identification and carbon reduction measures across all industries that produce greenhouse gas (GHG) emissions. Water supply system, as an energy-intensive sector, plays a crucial role in GHG reduction. This work conducted a life cycle assessment (LCA) to account the GHG emissions associated with the construction and operation phases of the drinking water treatment plant (DWTP). During the construction phase, the total GHG emissions were 19,525.762 t CO2-eq, with concrete work and rebar project being the dominant contributors (87.712%). The promotion of renewable or recyclable green building materials and low-carbon construction methods, such as the utilization of prefabricated components and on-site assembly, holds significant importance in reducing GHG emissions during the construction phase of DWTP. Regarding the operation stage, the DWTP possessed an average annual GHG emission of 37,660.160 t CO2-eq and an average GHG intensity of 0.202 kg CO2-eq/m3. Most emissions were attributed to electricity consumption (67.388%), chemicals utilization (12.893%), and heat consumption (10.414%). By increasing the use of clean energy and implementing strict control measures in the water supply pumps, energy consumption and GHG emissions can be effectively reduced. This study offers valuable insights into the mapping of GHG emissions in the DWTP, facilitating the identification of key areas for targeted implementation of energy-saving and carbon-reducing measures.
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Affiliation(s)
- Peng Zhang
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China
| | - Boru Ma
- Tianjin Pipeline Engineering Group Co., Ltd, Tianjin 300041, China
| | - Guolu Zheng
- Tianjin Pipeline Engineering Group Co., Ltd, Tianjin 300041, China
| | - Fukuan Li
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China
| | - Wei Zhang
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China
| | - Jingwen Gu
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China
| | - Zehong Liu
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China
| | - Kexun Li
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China.
| | - Hao Wang
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; State Key Laboratory of Simulation and Regulation of Water Cycles in River Basins, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
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14
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Xu Y, Lin T, Du P, Wang J. The research on a novel multivariate grey model and its application in carbon dioxide emissions prediction. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:21986-22011. [PMID: 38400970 DOI: 10.1007/s11356-024-32262-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 01/26/2024] [Indexed: 02/26/2024]
Abstract
Accurate small-sample prediction is an urgent, very difficult, and challenging task due to the quality of data storage restricted in most realistic situations, especially in developing countries. The grey model performs well in small-sample prediction. Therefore, a novel multivariate grey model is proposed in this study, called FBNGM (1, N, r), with a fractional order operator, which can increase the impact of new information and background value coefficient to achieve high prediction accuracy. The utilization of an intelligence optimization algorithm to tune the parameters of the multivariate grey model is an improvement over the conventional method, as it leads to superior accuracy. This study conducts two sets of numerical experiments on CO2 emissions to evaluate the effectiveness of the proposed FBNGM (1, N, r) model. The FBNGM (1, N, r) model has been shown through experiments to effectively leverage all available data and avoid the problem of overfitting. Moreover, it can not only obtain higher prediction accuracy than comparison models but also further confirm the indispensable importance of various influencing factors in CO2 emissions prediction. Additionally, the proposed FBNGM (1, N, r) model is employed to forecast CO2 emissions in the future, which can be taken as a reference for relevant departments to formulate policies.
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Affiliation(s)
- Yan Xu
- Ocean University of China, Qingdao, 266100, China
- Qingdao Financial Research Institute, Qingdao, 266100, China
| | - Tong Lin
- Ocean University of China, Qingdao, 266100, China
| | - Pei Du
- School of Business, Jiangnan University, Wuxi, 214122, China.
- Food Safety Research Base of Jiangsu Province, Jiangnan University, Wuxi, 214122, China.
| | - Jianzhou Wang
- Institute of Systems Engineering, Macau University of Science and Technology, Macau, 999078, China
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15
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Qu Y, Wang D, Jin S, Zheng Z, Diao Z, Rong Y. Flooding Length Mediates Fencing and Grazing Effects on Soil Respiration in Meadow Steppe. PLANTS (BASEL, SWITZERLAND) 2024; 13:666. [PMID: 38475512 DOI: 10.3390/plants13050666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/20/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024]
Abstract
Grassland management affects soil respiration (Rs, consists of heterotrophic respiration and autotrophic respiration) through soil micro-ecological processes, such as hydrothermal, plant root, organic carbon decomposition and microbial activity. Flooding, an irregular phenomenon in grasslands, may strongly regulate the response of soil respiration and its components to grassland management, but the regulatory mechanism remains unclear. We conducted a 3-year experiment by grassland management (fencing and grazing) and flooding conditions (no flooding (NF), short-term flooding (STF) and long-term flooding (LTF)) to study their effects on Rs and its components in a meadow steppe in the Hui River basin of Hulunbuir. We found differences in the patterns of Rs and its components under grassland management and flooding conditions. In 2021-2023, the temporal trends of Rs, heterotrophic respiration (Rh) and autotrophic respiration (Ra) were generally consistent, with peaks occurring on days 190-220, and the peaks of grazing were higher than that of fencing. In NF, Rs of grazed grassland was significantly higher than that of fenced grassland in 2021-2022 (p < 0.05). In STF and LTF, there was no significant difference in Rs between fenced and grazed grassland (p > 0.05). The dependence of Rs on soil temperature (ST) decreased with increasing flooding duration, and the dependence of Rs on ST of grazed grassland was higher than fenced grassland under NF and STF, but there was no difference between fenced grassland and grazed grassland under LTF. In addition, Rh was more sensitive to ST than Ra. This may be due to the different pathways of ST effects on Rs under grazing in different flooding conditions. Our study indicates that the effect of flooding on Rs is the key to the rational use of grassland under future climate change. To reduce regional carbon emissions, we recommend grazing on flooding grassland and fencing on no-flooding grassland.
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Affiliation(s)
- Yan Qu
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
- State Environmental Protection Scientific Observation and Research Station for Hulunbuir Forest-Steppe Ecotone, Hulunbuir 021100, China
| | - Deping Wang
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Sanling Jin
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Zhirong Zheng
- State Environmental Protection Scientific Observation and Research Station for Hulunbuir Forest-Steppe Ecotone, Hulunbuir 021100, China
- State Environmental Protection Key Laboratory of Regional Eco-Process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Zhaoyan Diao
- State Environmental Protection Scientific Observation and Research Station for Hulunbuir Forest-Steppe Ecotone, Hulunbuir 021100, China
- State Environmental Protection Key Laboratory of Regional Eco-Process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yuping Rong
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
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16
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Liu H, Zeng Y, Chen W, Liu C, Sun D, Hu Z, Li P, Xu H, Wu H, Qiu B, Liu X, Dang Y. Effect of different hydrogen evolution rates at cathode on bioelectrochemical reduction of CO 2 to acetate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169744. [PMID: 38176559 DOI: 10.1016/j.scitotenv.2023.169744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/26/2023] [Accepted: 12/26/2023] [Indexed: 01/06/2024]
Abstract
Microbial electrosynthesis (MES) offers a promising approach for converting CO2 into valuable chemicals such as acetate. However, the relative low conversion rate severely limits its practical application. This study investigated the impact of different hydrogen evolution rates on the conversion rate of CO2 to acetate in the MES system. Three potentials (-0.8 V, -0.9 V and -1.0 V) corresponding to various hydrogen evolution rates were set and analyzed, revealing an optimal hydrogen evolution rate, yielding a maximum acetate formation rate of 1410.9 mg/L and 73.5 % coulomb efficiency. The electrochemical findings revealed that an optimal hydrogen evolution rate facilitated the formation of an electroactive biofilm. The microbial community of the cathode biofilm highlighted key genera, including Clostridium and Acetobacterium, which played essential roles in electrosynthesis within the MES system. Notably, a low hydrogen evolution rate failed to provide sufficient energy for the electrochemical reduction of CO2 to acetate, while a high rate led to cathode alkalinization, impeding the reaction and causing significant energy wastage. Therefore, maintaining an appropriate hydrogen evolution rate is crucial for the development of mature electroactive biofilms and achieving optimal performance in the MES system.
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Affiliation(s)
- Huanying Liu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Yiwei Zeng
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Wenwen Chen
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Chuanqi Liu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Dezhi Sun
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Zhen Hu
- School of Environmental Science & Engineering, Shandong Key Laboratory of Water Pollution Control and Resource Reuse, Environment Research Institute, Shandong University, Qingdao 266237, PR China
| | - Pengsong Li
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Haiyu Xu
- Qinglin Chuangneng (Shanghai) Technology Co., Ltd, Shanghai 201800, China
| | - Hongbin Wu
- Qinglin Chuangneng (Shanghai) Technology Co., Ltd, Shanghai 201800, China
| | - Bin Qiu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Xinying Liu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Yan Dang
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
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17
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Zhou MJ, Miao Y, Gu Y, Xie Y. Recent Advances in Reversible Liquid Organic Hydrogen Carrier Systems: From Hydrogen Carriers to Catalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2311355. [PMID: 38374727 DOI: 10.1002/adma.202311355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/31/2024] [Indexed: 02/21/2024]
Abstract
Liquid organic hydrogen carriers (LOHCs) have gained significant attention for large-scale hydrogen storage due to their remarkable gravimetric hydrogen storage capacity (HSC) and compatibility with existing oil and gas transportation networks for long-distance transport. However, the practical application of reversible LOHC systems has been constrained by the intrinsic thermodynamic properties of hydrogen carriers and the performances of associated catalysts in the (de)hydrogenation cycles. To overcome these challenges, thermodynamically favored carriers, high-performance catalysts, and catalytic procedures need to be developed. Here, significant advances in recent years have been summarized, primarily centered on regular LOHC systems catalyzed by homogeneous and heterogeneous catalysts, including dehydrogenative aromatization of cycloalkanes to arenes and N-heterocyclics to N-heteroarenes, as well as reverse hydrogenation processes. Furthermore, with the development of metal complexes for dehydrogenative coupling, a new family of reversible LOHC systems based on alcohols is described that can release H2 under relatively mild conditions. Finally, views on the next steps and challenges in the field of LOHC technology are provided, emphasizing new resources for low-cost hydrogen carriers, high-performance catalysts, catalytic technologies, and application scenarios.
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Affiliation(s)
- Min-Jie Zhou
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yulong Miao
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yanwei Gu
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yinjun Xie
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
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18
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Zhao S, Liu L, Zhao P. Spatial and temporal analysis of influential factors on motor vehicle carbon monoxide emissions in China considering emissions trading scheme. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:9811-9830. [PMID: 38198083 DOI: 10.1007/s11356-024-31880-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 01/02/2024] [Indexed: 01/11/2024]
Abstract
The number of cars is increasing every year and the environmental aspects of transport are becoming a hot topic. The spatial and temporal patterns of motor vehicle carbon monoxide (CO) emissions are still unclear due to the unbalanced economic development and heterogeneous geographic conditions of China. With the objective of realizing a reduction in motor vehicle CO emissions, his study explores the transport carbon emission reduction pathways of China from motor vehicle CO emission. Firstly, the entropy method is adopted to comprehensively evaluate the CO emissions from motor vehicles in each province; secondly, the development of a Geographically and Temporally Weighted Regression (GTWR) model facilitates the examination of the spatiotemporal dynamics pertaining to the influencing factors of motor vehicle CO emissions within each province.; finally, the characteristics of motor vehicle CO emissions in ETS pilot areas and non-ETS pilot areas are compared. The results show that: (1) After the completion of the six ETS pilot areas in 2011, the CO emission from motor vehicles is reduced by 18% compared with 2010.(2)The entropy method shows that the largest CO emissions from motor vehicles are from Beijing, Shanghai, Guangdong and other provinces with high economic levels.(3) The results of the GTWR model show that the positive effects of economic level, population size, road mileage intensity and motor vehicle intensity on motor vehicle CO emissions are decreasing year by year. The negative effect of metro line intensity on CO emission decreases year by year. This study can help decision makers to identify the high emission areas, understand the influencing factors, and formulate emission reduction measures to achieve the purpose of carbon emission reduction in transport.
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Affiliation(s)
- Shuqin Zhao
- School of Traffic & Transportation, Lanzhou Jiaotong University, 88 Anning Rd, Lanzhou, 730070, China.
- School of Business Administration, Henan University of Animal Husbandry and Economy, 146 Yingcai St., Huiji District, Zhengzhou, 450053, China.
| | - Linzhong Liu
- School of Traffic & Transportation, Lanzhou Jiaotong University, 88 Anning Rd, Lanzhou, 730070, China
| | - Ping Zhao
- Key Laboratory of Deep Underground Science and Engineering (Ministry of Education), School of Architecture and Environment, Sichuan University, 24 First Ring RD., Chengdu, 610065, China
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19
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Zou X, Zhu Y, Lv J, Zhou Y, Ding B, Liu W, Xiao K, Zhang Q. Toward Estimating CO 2 Solubility in Pure Water and Brine Using Cascade Forward Neural Network and Generalized Regression Neural Network: Application to CO 2 Dissolution Trapping in Saline Aquifers. ACS OMEGA 2024; 9:4705-4720. [PMID: 38313487 PMCID: PMC10831835 DOI: 10.1021/acsomega.3c07962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/28/2023] [Accepted: 01/04/2024] [Indexed: 02/06/2024]
Abstract
Predicting carbon dioxide (CO2) solubility in water and brine is crucial for understanding carbon capture and storage (CCS) processes. Accurate solubility predictions inform the feasibility and effectiveness of CO2 dissolution trapping, a key mechanism in carbon sequestration in saline aquifers. In this work, a comprehensive data set comprising 1278 experimental solubility data points for CO2-brine systems was assembled, encompassing diverse operating conditions. These data encompassed brines containing six different salts: NaCl, KCl, NaHCO3, CaCl2, MgCl2, and Na2SO4. Also, this databank encompassed temperature spanning from 273.15 to 453.15 K and a pressure range spanning 0.06-100 MPa. To model this solubility databank, cascade forward neural network (CFNN) and generalized regression neural network (GRNN) were employed. Furthermore, three optimization algorithms, namely, Bayesian Regularization (BR), Broyden-Fletcher-Goldfarb-Shanno (BFGS) quasi-Newton, and Levenberg-Marquardt (LM), were applied to enhance the performance of the CFNN models. The CFNN-LM model showcased average absolute percent relative error (AAPRE) values of 5.37% for the overall data set, 5.26% for the training subset, and 5.85% for the testing subset. Overall, the CFNN-LM model stands out as the most accurate among the models crafted in this study, boasting the highest overall R2 value of 0.9949 among the other models. Based on sensitivity analysis, pressure exerts the most significant influence and stands as the sole parameter with a positive impact on CO2 solubility in brine. Conversely, temperature and the concentration of all six salts considered in the model exhibited a negative impact. All salts exert a negative impact on CO2 solubility due to their salting-out effect, with varying degrees of influence. The salting-out effects of the salts can be ranked as follows: from the most pronounced to the least: MgCl2 > CaCl2 > NaCl > KCl > NaHCO3 > Na2SO4. By employing the leverage approach, only a few instances of potential suspected and out-of-leverage data were found. The relatively low count of identified potential suspected and out-of-leverage data, given the expansive solubility database, underscores the reliability and accuracy of both the data set and the CFNN-LM model's performance in this survey.
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Affiliation(s)
- Xinyuan Zou
- State
Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum
Exploration and Development, CNPC, Beijing 100083, China
- Research
Institute of Petroleum Exploration & Development, Beijing 100083, China
| | - Yingting Zhu
- Research
Institute of Petroleum Exploration & Development, Beijing 100083, China
- Key
Laboratory of Oilfield Chemistry of CNPC, Beijing 100083, China
| | - Jing Lv
- Research
Institute of Petroleum Exploration & Development, Beijing 100083, China
- Key
Laboratory of Oilfield Chemistry of CNPC, Beijing 100083, China
| | - Yuchi Zhou
- Oil
and Gas engineering research Institute, Petrochina Jilin Oilfield Company, Songyuan 138000, China
| | - Bin Ding
- Research
Institute of Petroleum Exploration & Development, Beijing 100083, China
- Key
Laboratory of Oilfield Chemistry of CNPC, Beijing 100083, China
| | - Weidong Liu
- Research
Institute of Petroleum Exploration & Development, Beijing 100083, China
- Key
Laboratory of Oilfield Chemistry of CNPC, Beijing 100083, China
| | - Kai Xiao
- State
Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China
| | - Qun Zhang
- State
Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum
Exploration and Development, CNPC, Beijing 100083, China
- Research
Institute of Petroleum Exploration & Development, Beijing 100083, China
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20
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Thapaliya BP, Ivanov AS, Chao HY, Lamm M, Meyer HM, Chi M, Sun XG, Aytug T, Dai S, Mahurin SM. Low-Temperature Molten Salt Electrochemical CO 2 Upcycling for Advanced Energy Materials. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2251-2262. [PMID: 38181451 DOI: 10.1021/acsami.3c14858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2024]
Abstract
One strategy for addressing the climate crisis caused by CO2 emissions is to efficiently convert CO2 to advanced materials suited for green and clean energy technology applications. Porous carbon is widely used as an advanced energy storage material because of its enhanced energy storage capabilities as an anode. Herein, we report electrochemical CO2 upcycling to solid carbon with a controlled microstructure and porosity in a ternary molten carbonate melt at 450 °C. Controlling the electrochemical parameters (voltage, temperature, cathode material) enabled the conversion of CO2 to porous carbon with a tunable morphology and porosity for the first time at such a low temperature. Additionally, a well-controlled morphology and porosity are beneficial for reversible energy storage. In fact, these carbon materials delivered high specific capacity, stable cycling performances, and exceptional rate capability even under extremely fast charging conditions when integrated as an anode in lithium-ion batteries (LIBs). The present approach not only demonstrated efficient upcycling of CO2 into porous carbon suitable for enhanced energy storage but can also contribute to a clean and green energy technology that can reduce carbon emissions to achieve sustainable energy goals.
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Affiliation(s)
- Bishnu P Thapaliya
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Alexander S Ivanov
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Hsin-Yun Chao
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Meghan Lamm
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Harry M Meyer
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Miaofang Chi
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Xiao-Guang Sun
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Tolga Aytug
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Institute for Advanced Materials and Manufacturing, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Shannon M Mahurin
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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21
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Mohtasham Moein M, Rahmati K, Saradar A, Moon J, Karakouzian M. A Critical Review Examining the Characteristics of Modified Concretes with Different Nanomaterials. MATERIALS (BASEL, SWITZERLAND) 2024; 17:409. [PMID: 38255577 PMCID: PMC10817359 DOI: 10.3390/ma17020409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/03/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024]
Abstract
The movement of the construction industry towards sustainable development has drawn attention to the revision of concrete. In addition to reducing pollution, the use of nano-materials should lead to the provision of higher quality concrete in terms of regulatory items (workability, resistance characteristics, durability characteristics, microstructure). The present study investigates 15 key characteristics of concrete modified with nano-CaCO3, nano-clay, nano-TiO2, and nano-SiO2. The results of the study showed that nanomaterials significantly have a positive effect on the hydration mechanism and the production of more C-S-H gel. The evaluation of resistance characteristics also indicates the promising results of these valuable materials. The durability characteristics of nano-containing concrete showed significant improvement despite high dispersion. Concrete in coastal areas (such as bridges or platforms), concrete exposed to radiation (such as hospitals), concrete exposed to impact load (such as nuclear power plants), and concrete containing recycled aggregate (such as bricks, tiles, ceramics) can be effectively improved by using nanomaterials. It is hoped that the current review paper can provide an effective image and idea for future applied studies by other researchers.
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Affiliation(s)
| | - Komeil Rahmati
- Department of Civil Engineering, Somesara Branch, Islamic Azad University, Somesara 4361947496, Iran;
| | - Ashkan Saradar
- Department of Civil Engineering, University of Guilan, Rasht 419961377, Iran
| | - Jaeyun Moon
- Department of Mechanical Engineering, University of Nevada, 4505 S Maryland Pkwy, Las Vegas, NV 89154, USA;
| | - Moses Karakouzian
- Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV 89154, USA
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22
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Shitanaka T, Fujioka H, Khan M, Kaur M, Du ZY, Khanal SK. Recent advances in microalgal production, harvesting, prediction, optimization, and control strategies. BIORESOURCE TECHNOLOGY 2024; 391:129924. [PMID: 37925082 DOI: 10.1016/j.biortech.2023.129924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 11/06/2023]
Abstract
The market value of microalgae has grown exponentially over the past two decades, due to their use in the pharmaceutical, nutraceutical, cosmetic, and aquatic/animal feed industries. In particular, high-value products such as omega-3 fatty acids, proteins, and pigments derived from microalgae have high demand. However, the supply of these high-value microalgal bioproducts is hampered by several critical factors, including low biomass and bioproduct yields, inefficiencies in monitoring microalgal growth, and costly harvesting methods. To overcome these constraints, strategies such as synthetic biology, bubble generation, photobioreactor designs, electro-/magnetic-/bioflocculation, and artificial intelligence integration in microalgal production are being explored. These strategies have significant promise in improving the production of microalgae, which will further boost market availability of algal-derived bioproducts. This review focuses on the recent advances in these technologies. Furthermore, this review aims to provide a critical analysis of the challenges in existing algae bioprocessing methods, and highlights future research directions.
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Affiliation(s)
- Ty Shitanaka
- Department of Molecular Biosciences & Bioengineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, United States
| | - Haylee Fujioka
- Department of Molecular Biosciences & Bioengineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, United States
| | - Muzammil Khan
- Department of Civil and Environmental Engineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, United States
| | - Manpreet Kaur
- Department of Molecular Biosciences & Bioengineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, United States
| | - Zhi-Yan Du
- Department of Molecular Biosciences & Bioengineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, United States.
| | - Samir Kumar Khanal
- Department of Molecular Biosciences & Bioengineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, United States; Department of Civil and Environmental Engineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, United States.
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23
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Ding Y, Yin J, Jiang H, Xia R, Zhang B, Luo X, Wei D. A dual-core system dynamics approach for carbon emission spillover effects analysis and cross-regional policy simulation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119374. [PMID: 37871547 DOI: 10.1016/j.jenvman.2023.119374] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 09/18/2023] [Accepted: 10/14/2023] [Indexed: 10/25/2023]
Abstract
As carbon emission continue to rise and climate issues grow increasingly severe, countries worldwide have taken measures to reduce carbon emission. However, carbon dioxide is continuously flowing in the atmosphere and is easily influenced by neighboring cities' policies. Therefore, how to solve the problem of carbon emission spillover effect has become the key to improve policy efficiency. Cross-regional carbon governance provides a perspective on solving the carbon emission problem by regulating and guiding the cooperative behavior of cross-regional governance actors. Taking Chengdu-Chongqing area as an example, this study used the SDM to analyze the influencing factors and spatial spillover effects of emission. Then we used the system dynamics method to construct a dual-core carbon emission system, and simulated the spillover effect and emission reduction potential of Chengdu and Chongqing emission reduction policies under different policy schemes. The results reveal that the mobility of population and enterprises have a significant impact on carbon emission prediction. Carbon reduction policies exhibit the phenomena of "carbon transfer" and "free-riding." When Chengdu lowers its economic growth rate, it leads to the transfer of high energy-consuming enterprises to Chongqing, increasing carbon emission in Chongqing. The implementation of comprehensive carbon reduction policies in Chongqing has a positive effect on Chengdu. Emission reduction policies exhibit issues related to their temporal efficacy, as the effects of industrial structural policies in Chengdu yield opposite outcomes in the short and long term. Each city's unique circumstances necessitate tailored carbon reduction policies. In order to reduce carbon emissions, Chengdu and Chongqing require opposite population policies.
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Affiliation(s)
- Yi Ding
- Center for China Western Modernization, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China; College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China; Key Laboratory of Green Fintech, Guizhou University of Finance and Economics, Guiyang, 550025, China.
| | - Jian Yin
- Center for China Western Modernization, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China; College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China; Key Laboratory of Green Fintech, Guizhou University of Finance and Economics, Guiyang, 550025, China.
| | - Hongtao Jiang
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
| | - Ruici Xia
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
| | - Bin Zhang
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
| | - Xinyuan Luo
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
| | - Danqi Wei
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
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24
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Wang X, Song C. Developing High-Capacity Solid "Molecular Basket" Sorbents for Selective CO 2 Capture and Separation. Acc Chem Res 2023; 56:3358-3368. [PMID: 37984414 DOI: 10.1021/acs.accounts.3c00444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
ConspectusSince carbon-based energy continues to dominate (over 80%) the global primary energy supply, carbon dioxide capture, utilization, and sequestration (CCUS) is deemed to be a promising and viable option to mitigate greenhouse gas emissions and climate change, for which CO2 capture is critical to the overall success of CCUS. Although liquid amine scrubbing is a mature technology for carbon capture, it is energy-intensive and costly due to energy consumption in solvent heating and water evaporation apart from the energy needed to break amine-CO2 bonding. To address this challenge, Song's group developed a new design approach for adsorptive CO2 capture and separation, namely, "molecular basket" sorbents (MBS), without the need for dealing with solvent heating and water evaporation. The solid MBS consisting of polymeric amines (such as PEI) immobilized into nanoporous materials (such as SBA-15) possesses a high capacity for CO2 capture with high selectivity, fast kinetics, and good regenerability. Consequently, MBS can greatly reduce energy consumption and carbon capture cost. Conventional adsorbents such as zeolites, activated carbon, alumina, and silica have low adsorption capacities, and their use of CO2 adsorption requires prior removal of moisture and cooling of flue gas (∼35 °C). On the contrast, the CO2 sorption capacity of MBS can even be promoted by the presence of moisture/steam and reaches the best performance closer to flue gas temperature (∼75 °C). This Account presents an overview of our research progress in the material development and fundamental understanding of MBS for CO2 capture and the separation of CO2 from various gas streams. It begins with an illustration of the MBS concept, followed by efforts to improve the performance and pilot-scale demonstration of MBS for CO2 capture. With the systematic characterization of MBS by various ex situ and in situ techniques, a better understanding is developed for the CO2 sorption process mechanistically. Furthermore, this Account demonstrates how the fundamental understanding of the CO2 sorption mechanism promotes the further development of more robust and advanced sorbent materials with improved CO2 sorption capacity, kinetics of sorption and desorption, and cyclic stability. Finally, an outlook is provided for the future design and development of novel sorbent materials and the CO2 sorption process for various gas streams including flue gas, biogas, air, and hydrogen streams.
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Affiliation(s)
- Xiaoxing Wang
- EMS Energy Institute, Departments of Energy and Mineral Engineering and of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Chunshan Song
- EMS Energy Institute, Departments of Energy and Mineral Engineering and of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Chemistry, Faculty of Science, The Chinese University of Hong Kong, Shatin, NT, Hong Kong 999077, China
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25
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Athulya PA, Chandrasekaran N. Exposure of true to life microplastics to Donax faba under two different pH conditions: A microcosm approach. REGIONAL STUDIES IN MARINE SCIENCE 2023; 67:103197. [DOI: 10.1016/j.rsma.2023.103197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
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26
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Wang M, Li S, Tang X, Zuo D, Jia Y, Guo S, Guan ZJ, Shen H. One-step preparation of Pt/Ag nanoclusters for CO 2 transformation. Phys Chem Chem Phys 2023; 25:30373-30380. [PMID: 37909301 DOI: 10.1039/d3cp02736h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Structurally precise metal nanoclusters with a facile synthetic process and high catalytic performance have been long pursued. These atomically precise nanocatalysts are regarded as model systems to study structure-performance relationships, surface coordination chemistry, and the reaction mechanism of heterogeneous metal catalysts. Nevertheless, the research on silver-based nanoclusters for driving chemical transformations is sluggish in comparison to gold counterparts. Herein, we report the one-step synthesis of Pt/Ag alloy nanoclusters of [PtAg9(C18H12Br3P)7Cl3](C18H12Br3P), which are highly active in catalysing cycloaddition reactions of CO2 and epoxides. The cluster was obtained in a rather simple way with the reduction of silver and platinum salts in the presence of ligands in one pot. The molecular structure of the titled cluster describes the protection of the Pt-centred Ag9 crown by the shell of phosphine ligands and halides. Its electronic structure, as revealed by density function theoretical calculations, adopts a superatomic geometry with 1S21P6 configuration. Interestingly, the cluster displays high activity in the formation of cyclic carbonates from CO2 under mind conditions.
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Affiliation(s)
- Meng Wang
- College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China.
| | - Simin Li
- College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China.
| | - Xiongkai Tang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Dongjie Zuo
- College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China.
| | - Yanyuan Jia
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Shuo Guo
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Zong-Jie Guan
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Hui Shen
- College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China.
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27
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Zhong J, Zhang X, Guo L, Wang D, Miao C, Zhang X. Ongoing CO 2 monitoring verify CO 2 emissions and sinks in China during 2018-2021. Sci Bull (Beijing) 2023; 68:2467-2476. [PMID: 37652803 DOI: 10.1016/j.scib.2023.08.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 09/02/2023]
Abstract
Accurate estimating CO2 emissions and sinks is crucial in achieving carbon neutrality in China. However, CO2 emissions from bottom-up inventories are uncertain at regional scales and lack independent verification from atmospheric perspectives. Here we integrated 39 high-precision CO2 stations in China to top-down invert emission-sink variations at 45 km × 45 km and achieved a full range of inventories verification. The results show that China's CO2 emissions are 15% higher than those of five bottom-up inventories, to an annual total of 3.40 Pg C a-1 for 2018-2021. After deducting human and livestock respiration, the annual CO2 emissions were 3.13 Pg C a-1 (11.48 Pg CO2 a-1). The annual increase in emissions slowed from 3.7% in 2019 to 1.1% in 2020 and resumed growth to 4.0% in 2021, consistent with observed CO2 growth rates in China. China's land CO2 sink, deducting farmland sinks and lateral fluxes, was 0.57 Pg C a-1 (2.09 Pg CO2 a-1) for 2018-2021 (higher than most global inverse models), accounting for ∼16.9% of anthropogenic CO2 emissions. The land sink in China decreased by -19.3% in 2019 due to a weak El Niño event and increased by 3.2% in 2020 and 13.7% in 2021. It is worth noting that inverse CO2 emissions and sinks in western China still face large uncertainty due to limited CO2 monitoring. Overall, our top-down estimates demonstrate spatiotemporal variations in CO2 emissions and sinks from atmospheric perspectives and highlight challenges for different provinces in achieving 2060 carbon neutrality with verified estimates.
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Affiliation(s)
- Junting Zhong
- Monitoring and Assessment Center for Greenhouse Gases and Carbon Neutrality, Key Laboratory of Atmospheric Chemistry of China Meteorological Administration, Chinese Academy of Meteorological Sciences, Beijing 100081, China; Laboratory of Climate Change Mitigation and Carbon Neutrality, Henan University, Zhengzhou 450001, China
| | - Xiaoye Zhang
- Monitoring and Assessment Center for Greenhouse Gases and Carbon Neutrality, Key Laboratory of Atmospheric Chemistry of China Meteorological Administration, Chinese Academy of Meteorological Sciences, Beijing 100081, China; Laboratory of Climate Change Mitigation and Carbon Neutrality, Henan University, Zhengzhou 450001, China.
| | - Lifeng Guo
- Monitoring and Assessment Center for Greenhouse Gases and Carbon Neutrality, Key Laboratory of Atmospheric Chemistry of China Meteorological Administration, Chinese Academy of Meteorological Sciences, Beijing 100081, China; Laboratory of Climate Change Mitigation and Carbon Neutrality, Henan University, Zhengzhou 450001, China.
| | - Deying Wang
- Monitoring and Assessment Center for Greenhouse Gases and Carbon Neutrality, Key Laboratory of Atmospheric Chemistry of China Meteorological Administration, Chinese Academy of Meteorological Sciences, Beijing 100081, China
| | - Changhong Miao
- Laboratory of Climate Change Mitigation and Carbon Neutrality, Henan University, Zhengzhou 450001, China
| | - Xiliang Zhang
- Institute of Energy, Environment and Economy, Tsinghua University, Beijing 100084, China
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28
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Tang YE, Fan R, Cai AZ, Wang LY, Lin RM, Meng XZ, Chen L, Guo R. Rethinking personal carbon trading (PCT) mechanism: A comprehensive review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118478. [PMID: 37393876 DOI: 10.1016/j.jenvman.2023.118478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/10/2023] [Accepted: 06/20/2023] [Indexed: 07/04/2023]
Abstract
The implementation of Personal Carbon Trading (PCT) holds promise in facilitating a noteworthy contribution towards the attainment of emissions reduction predicated on consumption patterns and consequently motivating lifestyle modifications. As individual consumption behaviors usually lead to continuous changes in carbon emissions, it is crucial to rethink PCT from a systematic perspective. This review employed a bibliometric analysis of 1423 papers related to PCT, highlighting the key themes of carbon emissions from energy consumption, climate change, and public opinion on policies in the context of PCT. Most of the existing PCT researches focus on theoretical assumptions and public attitudes, while the quantification of carbon emissions and simulation of PCT require further investigation. Furthermore, the concept of Tan Pu Hui is seldom addressed in PCT studies and case analyses. Moreover, there are limited PCT schemes worldwide that can be directly implemented in practice, leading to a scarcity of large-scale, high-participation case studies. To address these gaps, this review proposes a framework to clarify how PCT can stimulate individual emission reductions on the consumption side, comprising two phases, from motivation to behavior and behavior to target. Future endeavors should prioritize the enhancement of the systematic study of the theoretical foundation of PCT, encompassing carbon emissions accounting and policy design, the incorporation of cutting-edge technology, and the reinforcement of integrated policy practice. This review serves as a valuable reference for future research endeavors and policymaking efforts.
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Affiliation(s)
- Yun-En Tang
- College of Environmental Science and Engineering, Institute of Carbon Neutrality, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai, 200092, China
| | - Ru Fan
- College of Environmental Science and Engineering, Institute of Carbon Neutrality, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China
| | - Ang-Zu Cai
- College of Environmental Science and Engineering, Institute of Carbon Neutrality, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China
| | - Le-Yi Wang
- College of Environmental Science and Engineering, Institute of Carbon Neutrality, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China
| | - Rui-Min Lin
- College of Environmental Science and Engineering, Institute of Carbon Neutrality, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China
| | - Xiang-Zhou Meng
- College of Environmental Science and Engineering, Institute of Carbon Neutrality, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai, 200092, China; Jiaxing-Tongji Environmental Research Institute, 1994 Linggongtang Road, Jiaxing, 314051, Zhejiang Province, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Ling Chen
- College of Environmental Science and Engineering, Institute of Carbon Neutrality, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Ru Guo
- College of Environmental Science and Engineering, Institute of Carbon Neutrality, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai, 200092, China; Key Laboratory of Cities Mitigation and Adaptation to Climate Change in Shanghai, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China.
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29
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Ding Y, Yin J, Jiang H, Xia R, Zhang B, Luo X, Wei D. Dynamic simulation of carbon emission under different policy scenarios in Pearl River Delta urban agglomeration, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:102402-102417. [PMID: 37665440 DOI: 10.1007/s11356-023-29612-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 08/27/2023] [Indexed: 09/05/2023]
Abstract
Global climate continues to warm; by reducing carbon emission (CE) to cope with climate warming has become a global consensus. The influencing factors of CE exhibit diversification and spatial characteristics, and the complexity of the CE system poses challenges to green and low-carbon development and the realization of China's dual-carbon goals. Taking the Pearl River Delta urban agglomeration as an example, this study explored the influencing factors of CE and designed emission reduction schemes with the help of multi-scale geographically weighted regression (MGWR). Based on this, the system dynamics model was used to construct a CE system framework considering multi-dimensional driving factors, so as to combine the complex CE system with the emission reduction countermeasures considering spatial heterogeneity, and realize the dynamic simulation of CE reduction policies. The results showed that the urban agglomeration as a whole will reach carbon peak by 2025. Shenzhen, Zhuhai, and Dongguan have achieved carbon peak before 2020, while other cities will reach carbon peak by 2025-2030. The government policy constraints can effectively curb CE, but if government constraints were relaxed, CE will rise and individual cities will not reach carbon peak. Comprehensive CE reduction policies are better than a single CE reduction policy. The study found that this model framework provides a systematic analysis of carbon reduction strategies for urban agglomerations, offering decision-makers various combinations of economic development and green low-carbon objectives. This will further contribute to a multi-faceted mitigation of high emission in urban agglomeration and promote regional sustainable development.
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Affiliation(s)
- Yi Ding
- Center for China Western Modernization, Guizhou University of Finance and Economics, University City, Huaxi District, Guiyang, 550025, Guizhou, China
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, 550025, Guizhou, China
- Key Laboratory of Green Fintech, Guizhou University of Finance and Economics, Guiyang, 550025, China
| | - Jian Yin
- Center for China Western Modernization, Guizhou University of Finance and Economics, University City, Huaxi District, Guiyang, 550025, Guizhou, China.
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, 550025, Guizhou, China.
- Key Laboratory of Green Fintech, Guizhou University of Finance and Economics, Guiyang, 550025, China.
| | - Hongtao Jiang
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, 550025, Guizhou, China
| | - Ruici Xia
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, 550025, Guizhou, China
| | - Bin Zhang
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, 550025, Guizhou, China
| | - Xinyuan Luo
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, 550025, Guizhou, China
| | - Danqi Wei
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, 550025, Guizhou, China
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30
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Zeng M, Zhang K, Xu D, Ma H, Deng X. The complex impacts of economic growth pressure on carbon emission intensity: an empirical evidence from city data in China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:109135-109144. [PMID: 37770733 DOI: 10.1007/s11356-023-30040-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 09/18/2023] [Indexed: 09/30/2023]
Abstract
Excessive carbon emissions are the major challenge to global sustainable development. In the context of the coronavirus pandemic, pressure on global economic growth is gradually rising, threatening established carbon reduction targets. However, the relationship between economic growth pressures and carbon emission intensity has yet to be clearly discussed. Thus, this study quantitatively discusses the impacts of economic growth pressures from central (EGPN) and provincial (EGPP) governments on city carbon intensity. The study is based on data from China's city panels from 2005 to 2019. This study finds that (1) there is a U-shaped correlation between economic growth pressure and a city's carbon emission intensity, whether the economic growth pressure comes from the central government or the provincial government; (2) carbon emission intensity is more sensitive to economic growth pressure from the provincial government than it is to economic growth pressure from the central government. The findings of this study will help enhance the understanding of the relationship between economic growth pressure and carbon emission intensity, and can also provide a reference for global sustainable development that balances economic growth and environmental protection.
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Affiliation(s)
- Miao Zeng
- School of Economics, Sichuan University, Chengdu, 610065, China
| | - Kuan Zhang
- College of Economics, Sichuan Agricultural University, Chengdu, 611130, China
| | - Dingde Xu
- College of Management, Sichuan Agricultural University, Chengdu, 611130, China
| | - Hongju Ma
- Center for Agricultural Ecology and Resource Protection of Sichuan, Chengdu, 610041, China
| | - Xin Deng
- College of Economics, Sichuan Agricultural University, Chengdu, 611130, China.
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31
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Jiang H, Hou Y, Liu Z, Yuan R, Du Y, Ji X, Sheng Z, Zhang X. Liquid-in-Aerogel Porous Composite Allows Efficient CO 2 Capture and CO 2 /N 2 Separation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302627. [PMID: 37287342 DOI: 10.1002/smll.202302627] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/22/2023] [Indexed: 06/09/2023]
Abstract
The pursuit of efficient CO2 capture materials remains an unmet challenge. Especially, meeting both high sorption capacity and fast uptake kinetics is an ongoing effort in the development of CO2 sorbents. Here, a strategy to exploit liquid-in-aerogel porous composites (LIAPCs) that allow for highly effective CO2 capture and selective CO2 /N2 separation, is reported. Interestingly, the functional liquid tetraethylenepentamine (TEPA) is partially filled into the air pockets of SiO2 aerogel with left permanent porosity. Notably, the confined liquid thickness is 10.9-19.5 nm, which can be vividly probed by the atomic force microscope and rationalized by tailoring the liquid composition and amount. LIAPCs achieve high affinity between the functional liquid and solid porous counterpart, good structure integrity, and robust thermal stability. LIAPCs exhibit superb CO2 uptake capacity (5.44 mmol g-1 , 75 °C, and 15 vol% CO2 ), fast sorption kinetics, and high amine efficiency. Furthermore, LIAPCs ensure long-term adsorption-desorption cycle stability and offer exceptional CO2 /N2 selectivity both in dry and humid conditions, with a separation factor up to 1182.68 at a humidity of 1%. This approach offers the prospect of efficient CO2 capture and gas separation, shedding light on new possibilities to make the next-generation sorption materials for CO2 utilization.
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Affiliation(s)
- Haotian Jiang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Yinglai Hou
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Zengwei Liu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Ruizhe Yuan
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Yu Du
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Xiaofei Ji
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Zhizhi Sheng
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Xuetong Zhang
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- Division of Surgery and Interventional Science, University College London, London, NW3 2PF, UK
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Pawar RC, Chengula PJ, Khan H, Charles H, Lee CS. Boosting photocatalytic CO 2 conversion using strongly bonded Cu/reduced Nb 2O 5 nanosheets. Dalton Trans 2023; 52:12832-12844. [PMID: 37622345 DOI: 10.1039/d3dt02082g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Green energy production is becoming increasingly important in mitigating the effects of climate change, and the photocatalytic approach could be a potential solution. However, the main barriers to its commercialization are ineffective catalysis due to recombination, poor optical absorption, and sluggish carrier migration. Here, we fabricated a two-dimensional (2D) reduced niobium oxide photocatalyst synthesized by an in situ thermal method followed by copper incorporation. Compared to its counterparts, pure Nb2O5 (0.092 mmol g-1 CO) and r-Nb2O5 (0.216 mmol g-1 CO), the strongly bonded Cu/r-Nb2O5 (0.908 mmol g-1) sample produced an exceptional amount of CO. The separation of charge carriers and efficient use of light resulted in a remarkable photocatalytic performance. The acceptor levels were created by the Cu nanophase, and the carrier trapping states were created by the oxygen vacancies. This mechanism was supported by ESR and DRIFT analyses, which showed that enough free radicals were produced. This study opens up new possibilities for developing efficient photocatalysts that will generate green fuel.
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Affiliation(s)
- Rajendra C Pawar
- Department of Materials and Chemical Engineering, Hanyang University, ERICA campus, Ansan, South Korea.
- Department of Physics, Central University of Rajasthan, Ajmer, India
| | - Plassidius J Chengula
- Department of Materials and Chemical Engineering, Hanyang University, ERICA campus, Ansan, South Korea.
| | - Haritham Khan
- Department of Materials and Chemical Engineering, Hanyang University, ERICA campus, Ansan, South Korea.
| | - Hazina Charles
- Department of Materials and Chemical Engineering, Hanyang University, ERICA campus, Ansan, South Korea.
| | - Caroline S Lee
- Department of Materials and Chemical Engineering, Hanyang University, ERICA campus, Ansan, South Korea.
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Ghaffarpasand O, Almojarkesh A, Morris S, Stephens E, Chalabi A, Almojarkesh U, Almojarkesh Z, Pope FD. Traffic Noise Assessment Using Intelligent Acoustic Sensors (Traffic Ear) and Vehicle Telematics Data. SENSORS (BASEL, SWITZERLAND) 2023; 23:6964. [PMID: 37571749 PMCID: PMC10422506 DOI: 10.3390/s23156964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/20/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023]
Abstract
Here, we introduce Traffic Ear, an acoustic sensor pack that determines the engine noise of each passing vehicle without interrupting traffic flow. The device consists of an array of microphones combined with a computer vision camera. The class and speed of passing vehicles were estimated using sound wave analysis, image processing, and machine learning algorithms. We compared the traffic composition estimated with the Traffic Ear sensor with that recorded using an automatic number plate recognition (ANPR) camera and found a high level of agreement between the two approaches for determining the vehicle type and fuel, with uncertainties of 1-4%. We also developed a new bottom-up assessment approach that used the noise analysis provided by the Traffic Ear sensor along with the extensively detailed urban mobility maps that were produced using the geospatial and temporal mapping of urban mobility (GeoSTMUM) approach. It was applied to vehicles travelling on roads in the West Midlands region of the UK. The results showed that the reduction in traffic engine noise over the whole of the study road was over 8% during rush hours, while the weekday-weekend effect had a deterioration effect of almost half. Traffic noise factors (dB/m) on a per-vehicle basis were almost always higher on motorways compared the other roads studied.
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Affiliation(s)
- Omid Ghaffarpasand
- School of Geography, Earth, and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | | | - Sophie Morris
- Sandwell Metropolitan Borough Council, Sandwell B69 3DE, UK
| | | | - Alaa Chalabi
- Innovation Factory Limited, Birmingham B7 4BP, UK; (A.A.)
| | | | | | - Francis D. Pope
- School of Geography, Earth, and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, UK
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Aytac S, Bautista-Puig N, Orduña-Malea E, Tran CY. Contribution of carbon footprint research towards the triple bottom line of sustainability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:88331-88349. [PMID: 37454377 DOI: 10.1007/s11356-023-28799-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
Carbon footprint (CF) research has received increasing attention in recent years, as evidenced by a rise in publications and citations, reflecting a growing concern for the environmental impact of human activities. However, the alignment of this scientific literature with the three dimensions of sustainability performance provided by the TBL paradigm (people, planet, and profit) has received limited attention. This study addresses this research gap by undertaking a large-scale bibliometric analysis of 9032 Web of Science (WoS) publications from 1992 to 2020. At the macro (journals) and micro (papers) levels, a methodology approach to classify research publications according to TBL dimensions was designed. The results indicate that the output and impact of CF research are balanced with respect to the environmental (planet) and economic (prosperity/profit) dimensions, while the social impact is balanced with respect to the people+profit dimensions. Other than that, "Affordable and Clean Energy" (3761 publications) and "Climate Action" (3091 publications) are the most frequently represented (and interconnected) objectives. The results obtained contribute to a greater understanding of the contribution of CF research to the attainment of the SDGs.
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Affiliation(s)
- Selenay Aytac
- Long Island University, Post Campus, 728 Northern Blvd, Brookville, NY, USA.
| | - Núria Bautista-Puig
- Department of Information and Library Science, Complutense University of Madrid, Madrid, Spain
- Department of Industrial Management, Industrial Design and Mechanical Engineering, University of Gavle, Gavle, Sweden
| | - Enrique Orduña-Malea
- Department of Audiovisual Communication, Documentation and History of Art, Universitat Politècnica de València, Valencia, Spain
| | - Clara Y Tran
- University Libraries, Stony Brook University, Stony Brook, NY, USA
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Lee JK, Anderson G, Tricker AW, Babbe F, Madan A, Cullen DA, Arregui-Mena JD, Danilovic N, Mukundan R, Weber AZ, Peng X. Ionomer-free and recyclable porous-transport electrode for high-performing proton-exchange-membrane water electrolysis. Nat Commun 2023; 14:4592. [PMID: 37524721 PMCID: PMC10390546 DOI: 10.1038/s41467-023-40375-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 07/19/2023] [Indexed: 08/02/2023] Open
Abstract
Clean hydrogen production requires large-scale deployment of water-electrolysis technologies, particularly proton-exchange-membrane water electrolyzers (PEMWEs). However, as iridium-based electrocatalysts remain the only practical option for PEMWEs, their low abundance will become a bottleneck for a sustainable hydrogen economy. Herein, we propose high-performing and durable ionomer-free porous transport electrodes (PTEs) with facile recycling features enabling Ir thrifting and reclamation. The ionomer-free porous transport electrodes offer a practical pathway to investigate the role of ionomer in the catalyst layer and, from microelectrode measurements, point to an ionomer poisoning effect for the oxygen evolution reaction. The ionomer-free porous transport electrodes demonstrate a voltage reduction of > 600 mV compared to conventional ionomer-coated porous transport electrodes at 1.8 A cm-2 and <0.1 mgIr cm-2, and a voltage degradation of 29 mV at average rate of 0.58 mV per 1000-cycles after 50k cycles of accelerated-stress tests at 4 A cm-2. Moreover, the ionomer-free feature enables facile recycling of multiple components of PEMWEs, which is critical to a circular clean hydrogen economy.
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Affiliation(s)
- Jason K Lee
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Grace Anderson
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Andrew W Tricker
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Finn Babbe
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Arya Madan
- Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, CA, 94720, USA
| | - David A Cullen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - José' D Arregui-Mena
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Nemanja Danilovic
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Rangachary Mukundan
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Adam Z Weber
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Xiong Peng
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
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Tominc S, Ducman V. Methodology for Evaluating the CO 2 Sequestration Capacity of Waste Ashes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5284. [PMID: 37569992 PMCID: PMC10419612 DOI: 10.3390/ma16155284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023]
Abstract
The concentration of CO2 in the atmosphere is constantly increasing, leading to an increase in the average global temperature and, thus, affecting climate change. Hence, various initiatives have been proposed to mitigate this process, among which CO2 sequestration is a technically simple and efficient approach. The spontaneous carbonation of ashes with atmospheric CO2 is very slow, and this is why accelerated carbonation is encouraged. However, not all ashes are equally suitable for this process, so a methodology to evaluate their potential should be developed. Such a methodology involves a combination of techniques, from theoretical calculations to XRF, XRD, DTA-TG, and the calcimetric determination of the CaCO3 content. The present study followed the approach of exposing ashes to accelerated carbonation conditions (4% v/v CO2, 50-55% and 80-85% RH, 20 °C) in a closed carbonation chamber for different periods of time until the maximum CO2 uptake is reached. The amount of sequestered CO2 was quantified by thermogravimetry. The results show that the highest CO2 sequestration capacity (33.8%) and carbonation efficiency (67.9%) were obtained for wood biomass bottom ash. This method was applied to eight combustion ashes and could serve to evaluate other ashes or comparable carbon storage materials.
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Affiliation(s)
| | - Vilma Ducman
- Laboratory for Cements, Mortars and Ceramics, The Department of Materials, Slovenian National Building and Civil Engineering Institute (ZAG), Dimičeva ulica 12, 1000 Ljubljana, Slovenia;
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37
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Wilf P, Kooyman RM. Do Southeast Asia's paleo-Antarctic trees cool the planet? THE NEW PHYTOLOGIST 2023. [PMID: 37369251 DOI: 10.1111/nph.19067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 05/23/2023] [Indexed: 06/29/2023]
Abstract
Many tree genera in the Malesian uplands have Southern Hemisphere origins, often supported by austral fossil records. Weathering the vast bedrock exposures in the everwet Malesian tropics may have consumed sufficient atmospheric CO2 to contribute significantly to global cooling over the past 15 Myr. However, there has been no discussion of how the distinctive regional tree assemblages may have enhanced weathering and contributed to this process. We postulate that Gondwanan-sourced tree lineages that can dominate higher-elevation forests played an overlooked role in the Neogene CO2 drawdown that led to the Ice Ages and the current, now-precarious climate state. Moreover, several historically abundant conifers in Araucariaceae and Podocarpaceae are likely to have made an outsized contribution through soil acidification that increases weathering. If the widespread destruction of Malesian lowland forests continues to spread into the uplands, the losses will threaten unique austral plant assemblages and, if our hypothesis is correct, a carbon sequestration engine that could contribute to cooler planetary conditions far into the future. Immediate effects include the spread of heat islands, significant losses of biomass carbon and forest-dependent biodiversity, erosion of watershed values, and the destruction of tens of millions of years of evolutionary history.
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Affiliation(s)
- Peter Wilf
- Department of Geosciences and Earth and Environmental Systems Institute, Pennsylvania State University, University Park, PA, 16802, USA
| | - Robert M Kooyman
- Department of Biological Sciences, Macquarie University, Sydney, NSW, 2109, Australia
- Research Centre for Ecosystem Resilience, Royal Botanic Gardens and Domain Trust, Sydney, NSW, 2000, Australia
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38
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Ke P, Deng Z, Zhu B, Zheng B, Wang Y, Boucher O, Arous SB, Zhou C, Andrew RM, Dou X, Sun T, Song X, Li Z, Yan F, Cui D, Hu Y, Huo D, Chang JP, Engelen R, Davis SJ, Ciais P, Liu Z. Carbon Monitor Europe near-real-time daily CO 2 emissions for 27 EU countries and the United Kingdom. Sci Data 2023; 10:374. [PMID: 37291162 DOI: 10.1038/s41597-023-02284-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 05/31/2023] [Indexed: 06/10/2023] Open
Abstract
With the urgent need to implement the EU countries pledges and to monitor the effectiveness of Green Deal plan, Monitoring Reporting and Verification tools are needed to track how emissions are changing for all the sectors. Current official inventories only provide annual estimates of national CO2 emissions with a lag of 1+ year which do not capture the variations of emissions due to recent shocks including COVID lockdowns and economic rebounds, war in Ukraine. Here we present a near-real-time country-level dataset of daily fossil fuel and cement emissions from January 2019 through December 2021 for 27 EU countries and UK, which called Carbon Monitor Europe. The data are calculated separately for six sectors: power, industry, ground transportation, domestic aviation, international aviation and residential. Daily CO2 emissions are estimated from a large set of activity data compiled from different sources. The goal of this dataset is to improve the timeliness and temporal resolution of emissions for European countries, to inform the public and decision makers about current emissions changes in Europe.
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Affiliation(s)
- Piyu Ke
- Department of Earth System Science, Tsinghua University, Beijing, China
- Department of Mathematics and Statistics, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK
| | - Zhu Deng
- Department of Earth System Science, Tsinghua University, Beijing, China
- Alibaba Cloud, Hangzhou, China
| | - Biqing Zhu
- Department of Earth System Science, Tsinghua University, Beijing, China
- Laboratoire des Sciences du Climate et de l'Environnement LSCE, Orme de Merisiers, 91191, Gif-sur-Yvette, France
| | - Bo Zheng
- Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Yilong Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Olivier Boucher
- Institute Pierre-Simon Laplace, Sorbonne Université/CNRS, Paris, France
| | | | - Chuanlong Zhou
- Laboratoire des Sciences du Climate et de l'Environnement LSCE, Orme de Merisiers, 91191, Gif-sur-Yvette, France
| | - Robbie M Andrew
- CICERO Center for International Climate Research, Oslo, 0349, Norway
| | - Xinyu Dou
- Department of Earth System Science, Tsinghua University, Beijing, China
| | - Taochun Sun
- Department of Earth System Science, Tsinghua University, Beijing, China
| | - Xuanren Song
- Department of Earth System Science, Tsinghua University, Beijing, China
| | - Zhao Li
- Department of Earth System Science, Tsinghua University, Beijing, China
| | - Feifan Yan
- Key Laboratory of Marine Environment and Ecology, and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Duo Cui
- Department of Earth System Science, Tsinghua University, Beijing, China
| | - Yifan Hu
- Key Laboratory of Sustainable Forest Ecosystem Management, Northeast Forestry University, Harbin, 150040, China
| | - Da Huo
- Department of Earth System Science, Tsinghua University, Beijing, China
- Department of Civil & Mineral Engineering, University of Toronto, Toronto, ON, M5S 1A4, Canada
| | | | - Richard Engelen
- European Centre for Medium-Range Weather Forecasts, Reading, RG2 9AX, UK
| | - Steven J Davis
- Department of Earth System Science, University of California, Irvine, 3232 Croul Hall, Irvine, CA, 92697-3100, USA
| | - Philippe Ciais
- Laboratoire des Sciences du Climate et de l'Environnement LSCE, Orme de Merisiers, 91191, Gif-sur-Yvette, France.
- Climate and Atmosphere Research Center (CARE-C) The Cyprus Institute 20 Konstantinou Kavafi Street, 2121, Nicosia, Cyprus.
| | - Zhu Liu
- Department of Earth System Science, Tsinghua University, Beijing, China.
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Yalcin YS, Aydin B, Chen H, Gichuki S, Sitther V. Lipid production and cellular changes in Fremyella diplosiphon exposed to nanoscale zerovalent iron nanoparticles and ampicillin. Microb Cell Fact 2023; 22:108. [PMID: 37280676 DOI: 10.1186/s12934-023-02113-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 05/07/2023] [Indexed: 06/08/2023] Open
Abstract
With the dramatic decrease in fossil fuel stocks and their detrimental effects on the environment, renewable energy sources have gained imminent importance in the mitigation of emissions. As lipid-enriched energy stocks, cyanobacteria are the leading group of microorganisms contributing to the advent of a new energy era. In the present study, the impact of Nanofer 25 s nanoscale zero-valent iron nanoparticles (nZVIs) and ampicillin on lipid production and cellular structural changes in Fremyella diplosiphon strain B481-SD were investigated. Total lipid abundance, fatty acid methyl ester (FAME) compositions, and alkene production as detected by high-resolution two-dimensional gas chromatography with time-of-flight mass spectrometry (GC × GC/TOF-MS) was significantly higher (p < 0.05) in the individual application of 0.8 mg/L ampicillin, 3.2 mg/L nZVIs, and a combined regimen of 0.8 mg/L ampicillin and 3.2 mg/L nZVIs compared to the untreated control. In addition, we identified significant increases (p < 0.05) in monounsaturated fatty acids (MUFAs) in F. diplosiphon treated with the combination regimen compared to the untreated control, 0.8 mg/L of ampicillin, and 3.2 mg/L of nZVIs. Furthermore, individual treatment with 0.8 mg/L ampicillin and the combination regimen (0.8 mg/L ampicillin + 3.2 mg/L nZVIs) significantly increased (p < 0.05) Nile red fluorescence compared to the untreated control, indicating neutral membrane lipids to be the main target of ampicillin added treatments. Transmission electron microscopy studies revealed the presence of single-layered thylakoid membranes in the untreated control, while complex stacked membranes of 5-8 layers were visualized in ampicillin and nZVI-treated F. diplosiphon. Our results indicate that nZVIs in combination with ampicillin significantly enhanced total lipids, essential FAMEs, and alkenes in F. diplosiphon. These findings offer a promising approach to augment the potential of using the strain as a large-scale biofuel agent.
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Affiliation(s)
- Yavuz S Yalcin
- Department of Biology, Morgan State University, Baltimore, MD, 21251, USA
| | - Busra Aydin
- Department of Biology, Morgan State University, Baltimore, MD, 21251, USA
| | - Huan Chen
- National High Magnetic Field Laboratory, Ion Cyclotron Resonance Facility, Florida State University, 1800 East Paul Dirac Dr, Tallahassee, FL, 32310-4005, USA
| | - Samson Gichuki
- Department of Biology, Morgan State University, Baltimore, MD, 21251, USA
| | - Viji Sitther
- Department of Biology, Morgan State University, Baltimore, MD, 21251, USA.
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40
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Zhang B, Ling L, Zeng L, Hu H, Zhang D. Multi-step prediction of carbon emissions based on a secondary decomposition framework coupled with stacking ensemble strategy. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27109-8. [PMID: 37156950 PMCID: PMC10166696 DOI: 10.1007/s11356-023-27109-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 04/15/2023] [Indexed: 05/10/2023]
Abstract
Accurate prediction of carbon emissions is vital to achieving carbon neutrality, which is one of the major goals of the global effort to protect the ecological environment. However, due to the high complexity and volatility of carbon emission time series, it is hard to forecast carbon emissions effectively. This research offers a novel decomposition-ensemble framework for multi-step prediction of short-term carbon emissions. The proposed framework involves three main steps: (i) data decomposition. A secondary decomposition method, which is a combination of empirical wavelet transform (EWT) and variational modal decomposition (VMD), is used to process the original data. (ii) Prediction and selection: ten models are used to forecast the processed data. Then, neighborhood mutual information (NMI) is used to select suitable sub-models from candidate models. (iii) Stacking ensemble: the stacking ensemble learning method is innovatively introduced to integrate the selected sub-models and output the final prediction results. For illustration and verification, the carbon emissions of three representative EU countries are used as our sample data. The empirical results show that the proposed framework is superior to other benchmark models in predictions 1, 15, and 30 steps ahead, with the mean absolute percentage error (MAPE) of the proposed framework being as low as 5.4475% in Italy dataset, 7.3159% in France dataset, and 8.6821% in Germany dataset.
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Affiliation(s)
- Boting Zhang
- College of Mathematics and Information, South China Agricultural University, Guangzhou, 510642, China
| | - Liwen Ling
- College of Mathematics and Information, South China Agricultural University, Guangzhou, 510642, China
- Institute of Rural Revitalization Research, South China Agricultural University, Guangzhou, 510642, China
| | - Liling Zeng
- College of Mathematics and Information, South China Agricultural University, Guangzhou, 510642, China
| | - Huanling Hu
- College of Mathematics and Information, South China Agricultural University, Guangzhou, 510642, China
| | - Dabin Zhang
- College of Mathematics and Information, South China Agricultural University, Guangzhou, 510642, China.
- Institute of Rural Revitalization Research, South China Agricultural University, Guangzhou, 510642, China.
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Zhao Z, Yang K, Xu Y. Low-carbon transformation of power structure under the "double carbon" goal: power planning and policy implications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:66961-66977. [PMID: 37099112 DOI: 10.1007/s11356-023-27027-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 04/11/2023] [Indexed: 05/25/2023]
Abstract
The proposal of "double carbon" goal increases the pressure of power structure transformation. This paper sets up two scenarios according to the timing progress of realizing the "double carbon" goal and explores the transformation planning schemes of China's power structure. The conclusions are as follows: (1) Technological progress and policy support will greatly reduce the levelized cost of electricity (LCOE) of onshore wind power, offshore wind power, photovoltaic power, and photothermal power. The rapid rise in carbon price will lead to the LCOE of coal power in 2060 rising to 2 CNY/kWh. (2) The power consumption of the whole society in the baseline scenario can reach 17,000 TWh in 2060. In the acceleration scenario, this value may triple that in 2020 to 21,550 TWh. (3) The acceleration scenario will pay more newly added power costs and coal power stranded scale than the baseline scenario but can achieve carbon peak and negative emissions earlier. (4) More attention should be paid to the flexible level of power system, improve the allocation proportion and requirements of new energy storage on the power supply side, help the steady exit of coal power, and ensure the safety of low-carbon transformation of power structure.
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Affiliation(s)
- Zhenyu Zhao
- School of Economics and Management, North China Electric Power University, Beijing, 102206, China
| | - Kun Yang
- School of Economics and Management, North China Electric Power University, Beijing, 102206, China
| | - Yan Xu
- School of Management Science and Engineering, Shanxi University of Finance and Economics, Shanxi, 030006, China.
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Tobolovskaya Y, Medvedev JJ, Medvedeva XV, Mesbahuddin MS, Rodriguez NEN, Kalyaanamoorthy S, Klinkova A. The bovine carbonic anhydrase promoted dehydration of bicarbonate to CO2 for the electrochemical production of syngas. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2023.102461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Lee JG. Use of A-Site Metal Exsolution from a Hydrated Perovskite Titanate for Combined Steam and CO 2 Reforming of Methane. Inorg Chem 2023; 62:5831-5835. [PMID: 36989537 DOI: 10.1021/acs.inorgchem.3c00470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Metal segregation from a perovskite oxide (ABO3) usually referring to "redox metal exsolution" has recently been used for in situ preparation of a well-designed catalyst where metal nanoparticles are homogeneously and strongly embedded on perovskite scaffolds upon reduction. The exsolution concept of B-site transition metal ions has grown, but several issues such as segregation of A-site alkaline-earth metal ions (altering electronic structures of the perovskite surface, causing deformation of perovskite structures, or creating undesirable products via side reactions) and carbon formations on metal nanoparticles should be addressed for stable catalysts in greenhouse gas (CO2 or CH4) conversion. Here, we suggest a new approach to designing metal-perovskite composite catalysts via A-site metal segregation from a hydrated perovskite titanate. In situ formation of A-site-deficient hydrated CaTiO3 accompanied with Ni exsolution solids leads to ∼78 and 65% of CH4 and CO2 conversion, respectively, suppressing carbon formations and alkaline-earth metal segregations in combined steam and carbon dioxide reforming of methane at 700 °C. It would help to design active and stable metal-perovskite catalysts for energy and environmental applications.
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Affiliation(s)
- Jin Goo Lee
- Advanced Energy Materials and Components R&D Group, Dongnam Division, Korea Institute of Industrial Technology, 33-1, Jungang-ro, Yangsan, Geongsangnam-do 50623, Republic of Korea
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44
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Lehmann N, Stacke T, Lehmann S, Lantuit H, Gosse J, Mears C, Hartmann J, Thomas H. Alkalinity responses to climate warming destabilise the Earth's thermostat. Nat Commun 2023; 14:1648. [PMID: 36964126 PMCID: PMC10039064 DOI: 10.1038/s41467-023-37165-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 03/03/2023] [Indexed: 03/26/2023] Open
Abstract
Alkalinity generation from rock weathering modulates Earth's climate at geological time scales. Although lithology is thought to dominantly control alkalinity generation globally, the role of other first-order controls appears elusive. Particularly challenging remains the discrimination of climatic and erosional influences. Based on global observations, here we uncover the role of erosion rate in governing riverine alkalinity, accompanied by areal proportion of carbonate, mean annual temperature, catchment area, and soil regolith thickness. We show that the weathering flux to the ocean will be significantly altered by climate warming as early as 2100, by up to 68% depending on the environmental conditions, constituting a sudden feedback of ocean CO2 sequestration to climate. Interestingly, warming under a low-emissions scenario will reduce terrestrial alkalinity flux from mid-latitudes (-1.6 t(bicarbonate) a-1 km-2) until the end of the century, resulting in a reduction in CO2 sequestration, but an increase (+0.5 t(bicarbonate) a-1 km-2) from mid-latitudes is likely under a high-emissions scenario, yielding an additional CO2 sink.
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Affiliation(s)
- Nele Lehmann
- Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, Geesthacht, Germany.
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Germany.
- Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Oldenburg, Germany.
| | - Tobias Stacke
- Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, Geesthacht, Germany
- Max Planck Institute for Meteorology, Hamburg, Germany
| | | | - Hugues Lantuit
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Germany
- Institute of Geosciences, University of Potsdam, Potsdam, Germany
| | - John Gosse
- Department of Earth and Environmental Sciences, Dalhousie University, Halifax, NS, Canada
| | - Chantal Mears
- Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, Geesthacht, Germany
| | - Jens Hartmann
- Institute for Geology, Center for Earth System Research and Sustainability (CEN), University Hamburg, Hamburg, Germany
| | - Helmuth Thomas
- Institute of Carbon Cycles, Helmholtz-Zentrum Hereon, Geesthacht, Germany.
- Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Oldenburg, Germany.
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45
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Wang Q, Cheng Y, Tao HB, Liu Y, Ma X, Li DS, Yang HB, Liu B. Long-Term Stability Challenges and Opportunities in Acidic Oxygen Evolution Electrocatalysis. Angew Chem Int Ed Engl 2023; 62:e202216645. [PMID: 36546885 DOI: 10.1002/anie.202216645] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/24/2022]
Abstract
Polymer electrolyte membrane water electrolysis (PEMWE) has been regarded as a promising technology for renewable hydrogen production. However, acidic oxygen evolution reaction (OER) catalysts with long-term stability impose a grand challenge in its large-scale industrialization. In this review, critical factors that may lead to catalyst's instability in couple with potential solutions are comprehensively discussed, including mechanical peeling, substrate corrosion, active-site over-oxidation/dissolution, reconstruction, oxide crystal structure collapse through the lattice oxygen-participated reaction pathway, etc. Last but not least, personal prospects are provided in terms of rigorous stability evaluation criteria, in situ/operando characterizations, economic feasibility and practical electrolyzer consideration, highlighting the ternary relationship of structure evolution, industrial-relevant activity and stability to serve as a roadmap towards the ultimate application of PEMWE.
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Affiliation(s)
- Qilun Wang
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637459, Singapore
| | - Yaqi Cheng
- School of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Hua Bing Tao
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yuhang Liu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Xuehu Ma
- Liaoning Key Laboratory of Clean Utilisation of Chemical Resources, Institute of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Dong-Sheng Li
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, 443002, China
| | - Hong Bin Yang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Bin Liu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637459, Singapore.,Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
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46
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Kiran R, Yadav R, Sathe D, Patil SA. Halophilic CO 2-fixing microbial community as biocatalyst improves the energy efficiency of the microbial electrosynthesis process. BIORESOURCE TECHNOLOGY 2023; 371:128637. [PMID: 36669625 DOI: 10.1016/j.biortech.2023.128637] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/12/2023] [Accepted: 01/15/2023] [Indexed: 06/17/2023]
Abstract
Using saline electrolytes in combination with halophilic CO2-fixing lithotrophic microbial catalysts has been envisioned as a promising strategy to develop an energy-efficient microbial electrosynthesis (MES) process for CO2 utilization. Here, an enriched marine CO2-fixing lithotrophic microbial community dominated by Vibrio and Clostridium spp. was tested for MES of organic acids from CO2. At an applied Ecathode of -1V (vs Ag/AgCl) with 3.5 % salinity (78 mScm-1), it produced 379 ± 53 mg/L (6.31 ± 0.89 mM) acetic acid and 187 ± 43 mg/L (4.05 ± 0.94 mM) formic acid at 2.1 ± 0.30 and 1.35 ± 0.31 mM day-1, respectively production rates. Most electrons were recovered in acetate (68.3 ± 3 %), formate (9.6 ± 1.2 %) besides hydrogen (11 ± 1.4 %) and biomass (8.9 ± 1.65 %). Notably, the bioproduction of organic acids occurred at a high energetic efficiency (EE) of ∼ 46 % and low Ecell of 2.3 V in saline conditions compared to the commonly used non-saline electrolytes (0.5-1 mScm-1) in the reported MES studies with CO2 (Ecell: >2.5 V and EE: <34 %).
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Affiliation(s)
- Rashmi Kiran
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Knowledge City, Sector 81, SAS Nagar 140306, Punjab, India
| | - Ravineet Yadav
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Knowledge City, Sector 81, SAS Nagar 140306, Punjab, India
| | - Devangi Sathe
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Knowledge City, Sector 81, SAS Nagar 140306, Punjab, India
| | - Sunil A Patil
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Knowledge City, Sector 81, SAS Nagar 140306, Punjab, India.
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47
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Wu M, Fang M, Nan M, Chen X, Ma X. Recent Advances for Electrode Modifications in Flow Batteries: Properties, Mechanisms, and Outlooks. Chem Asian J 2023; 18:e202201242. [PMID: 36644999 DOI: 10.1002/asia.202201242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/17/2023]
Abstract
Flow batteries (FBs) have been demonstrated in several large-scale energy storage projects, and are considered to be the preferred technique for large-scale long-term energy storage in terms of their high safety, environmental friendliness, and long life, including all-vanadium flow batteries (VFBs) and Fe-Cr flow batteries (ICFBs). As the electrochemical reaction site, the electrode parameters, such as the specific surface area, active site, and so on, have a significant impact on the flow battery performance and reliability. Extensive research has been carried out on electrode modification to improve the current density and energy efficiency of the FBs. In this review, the reaction mechanisms of VFBs and ICFBs are discussed in detail firstly, and then the electrodes modification methods are overviewed and summarized from four aspects: self-modification, carbon-based electrocatalysts, metal-based electrocatalysts and composite electrocatalysts. Finally, the recent catalytic mechanism, in situ characterization technology, and future research directions are presented.
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Affiliation(s)
- Min Wu
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, Liaoning, P. R China
| | - Maolin Fang
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, Liaoning, P. R China
| | - Mingjun Nan
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, Liaoning, P. R China
| | - Xiangnan Chen
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, Liaoning, P. R China
| | - Xiangkun Ma
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, Liaoning, P. R China
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48
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Liu X, He Q, Liu J, Yu R, Zhang Y, Zhao Y, Xu X, Mai L, Zhou L. Dual Single-Atom Moieties Anchored on N-Doped Multilayer Graphene As a Catalytic Host for Lithium-Sulfur Batteries. ACS APPLIED MATERIALS & INTERFACES 2023; 15:9439-9446. [PMID: 36757864 DOI: 10.1021/acsami.2c21620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Lithium-sulfur (Li-S) batteries are promising for energy storage, especially in the era of carbon neutrality. Nonetheless, the sluggish kinetics of converting soluble lithium polysulfides into solid lithium sulfide impedes its development. In this work, we design Fe and Co dual single-atom moieties anchored on N-doped multilayer graphene (FeCoNGr) as a catalytic sulfur cathode host for Li-S batteries. With an efficient catalytic role in converting soluble lithium polysulfides into solid Li2S, the FeCoNGr-based Li-S cell demonstrates a capacity of 878.7 mA h g-1 at 0.2 C and retains 77.4% of the initial value after 100 cycles. The first and retained capacities are ∼1.7 and ∼1.8 times those of the NGr (without single atoms)-based cell, respectively. Theoretical calculations reveal that the Fe-N4 moiety has a higher binding energy toward low-order lithium polysulfides, while the Co-N4 moiety has a higher binding energy toward high-order lithium polysulfides. The efficient catalytic conversion of soluble lithium polysulfides into solid lithium sulfides of FeCoNGr plays important roles in outperforming NGr. This work enhances our knowledge on the tandem role of dual single-atom moieties and confirmed the high catalytic efficiency of single-atom catalysts in Li-S batteries.
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Affiliation(s)
- Xue Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Qiu He
- College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Jinshuai Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Ruohan Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Yuanyuan Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Yan Zhao
- College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xu Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Liqiang Mai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
- Hubei Longzhong Laboratory, Wuhan University of Technology (Xiangyang Demonstration Zone), Xiangyang, Hubei 441000, China
| | - Liang Zhou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
- Hubei Longzhong Laboratory, Wuhan University of Technology (Xiangyang Demonstration Zone), Xiangyang, Hubei 441000, China
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49
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Chen Y, Liu L, Li C, Huang Y, Luo Q. Information Disclosure Impacts Intention to Consume Man-Made Meat: Evidence from Urban Residents' Intention to Man-Made Meat in China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2950. [PMID: 36833646 PMCID: PMC9957051 DOI: 10.3390/ijerph20042950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/14/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Meat substitutes such as man-made meat are emerging to promote low-carbon healthy consumption, mitigate climate change, and assist healthy economic development; however, most consumers seem reluctant to make the transition. While profound social change may be required to make significant progress in this area, limited efforts have been made to understand the psychological processes that may hinder or facilitate this transition. To clearly identify the factors influencing the public's intention to consume man-made meat and their influencing paths, this study analyzes the mechanism by which man-made meat information disclosure affects the public's intention to consume these products based on the social cognitive theory of "awareness-situation-behavior" and using structural equation modeling, with residents of seven Chinese cities as examples (647 respondents). The results of this study yielded three main findings. First, low-carbon awareness, personal social responsibility awareness, and man-made meat risk perception significantly influence the public's intention to consume man-made meat, with risk perception having the greatest influence (-0.434). Second, low-carbon awareness and man-made meat risk perception have a significant interaction effect on the public's intention to consume man-made meat (-0.694). Third, man-made meat information disclosure has the most significant moderating effect on the relationship between low-carbon awareness and the public's intention to consume man-made meat, as well as a moderating effect on the relationship between man-made meat risk perception and the public's intention to consume man-made meat.
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Affiliation(s)
- Yong Chen
- School of Civil Engineering & Architecture, Zhejiang University of Science & Technology, Hangzhou 310023, China
| | - Li Liu
- School of Economics and Social Welfare, Zhejiang Shuren University, Hangzhou 310015, China
| | - Chao Li
- Zhijiang College, Zhejiang University of Technology, Shaoxing 312030, China
| | - Yangfei Huang
- School of Civil Engineering & Architecture, Zhejiang University of Science & Technology, Hangzhou 310023, China
| | - Qiaojie Luo
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310006, China
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50
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Liu B, Li Y, Tian X, Sun L, Xiu P. Can Digital Economy Development Contribute to the Low-Carbon Transition? Evidence from the City Level in China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2733. [PMID: 36768098 PMCID: PMC9916021 DOI: 10.3390/ijerph20032733] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
As a new engine to promote high-quality development and a sustainable economy, the digital economy (DE) plays a key role in achieving carbon reduction targets. In this paper, we use the "broadband China (BC)" policy as a proxy variable for the DE and employ the panel data of Chinese prefecture-level cities from 2006 to 2019 to investigate the effect of DE development on carbon emission intensity and its mechanism of action. It is found that (1) DE development significantly reduces the carbon emissions of cities and presents dynamic and sustainable characteristics; (2) the results of mechanism tests indicate that DE development is more inclined to reduce carbon emission intensity by improving regional innovation quality than by improving regional innovation quantity; (3) the impact of DE development on carbon emission intensity differs among cities with different characteristic attributes and different environmental regulation intensity, and the emission reduction effect is more obvious in non-resource-based cities, cities with lower environmental regulation intensity, and cities with weaker environmental target constraints; (4) the impact of DE development and innovation-driven development strategies on reducing carbon emission intensity has a policy linkage effect.
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Affiliation(s)
- Bei Liu
- School of Management, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
| | - Yukun Li
- Business School, Shandong Normal University, Jinan 250358, China
| | - Xiaoya Tian
- School of Management, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
| | - Lipeng Sun
- School of Management, Wenzhou Business College, Wenzhou 325035, China
| | - Pishi Xiu
- School of Management, Wenzhou Business College, Wenzhou 325035, China
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