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Chen H, Mo P, Zhu J, Xu X, Cheng Z, Yang F, Xu Z, Liu J, Wang L. Anionic Coordination Control in Building Cu-Based Electrocatalytic Materials for CO 2 Reduction Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400661. [PMID: 38597688 DOI: 10.1002/smll.202400661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/22/2024] [Indexed: 04/11/2024]
Abstract
Renewable energy-driven conversion of CO2 to value-added fuels and chemicals via electrochemical CO2 reduction reaction (CO2RR) technology is regarded as a promising strategy with substantial environmental and economic benefits to achieve carbon neutrality. Because of its sluggish kinetics and complex reaction paths, developing robust catalytic materials with exceptional selectivity to the targeted products is one of the core issues, especially for extensively concerned Cu-based materials. Manipulating Cu species by anionic coordination is identified as an effective way to improve electrocatalytic performance, in terms of modulating active sites and regulating structural reconstruction. This review elaborates on recent discoveries and progress of Cu-based CO2RR catalytic materials enhanced by anionic coordination control, regarding reaction paths, functional mechanisms, and roles of different non-metallic anions in catalysis. Finally, the review concludes with some personal insights and provides challenges and perspectives on the utilization of this strategy to build desirable electrocatalysts.
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Affiliation(s)
- Hanxia Chen
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China
| | - Pengpeng Mo
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China
| | - Junpeng Zhu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China
| | - Xiaoxue Xu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China
| | - Zhixiang Cheng
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China
| | - Feng Yang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China
| | - Zhongfei Xu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China
| | - Juzhe Liu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China
| | - Lidong Wang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China
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Lai W, Qiao Y, Wang Y, Huang H. Stability Issues in Electrochemical CO 2 Reduction: Recent Advances in Fundamental Understanding and Design Strategies. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2306288. [PMID: 37562821 DOI: 10.1002/adma.202306288] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/08/2023] [Indexed: 08/12/2023]
Abstract
Electrochemical CO2 reduction reaction (CO2 RR) offers a promising approach to close the anthropogenic carbon cycle and store intermittent renewable energy in fuels or chemicals. On the path to commercializing this technology, achieving the long-term operation stability is a central requirement but still confronts challenges. This motivates to organize the present review to systematically discuss the stability issue of CO2 RR. This review starts from the fundamental understanding on the destabilization mechanisms of CO2 RR, with focus on the degradation of electrocatalyst and change of reaction microenvironment during continuous electrolysis. Subsequently, recent efforts on catalyst design to stabilize the active sites are summarized, where increasing atomic binding strength to resist surface reconstruction is highlighted. Next, the optimization of electrolysis system to enhance the operation stability by maintaining reaction microenvironment especially mitigating flooding and carbonate problems is demonstrated. The manipulation on operation conditions also enables to prolong CO2 RR lifespan through recovering catalytically active sites and mass transport process. This review finally ends up by indicating the challenges and future opportunities.
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Affiliation(s)
- Wenchuan Lai
- College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
- College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu, 210023, P. R. China
| | - Yan Qiao
- College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Yanan Wang
- College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Hongwen Huang
- College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
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3
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Guo M, Xun Y, Kang F, Revsbech NP. Copper Catalysis-Based Amperometric Microsensors for Carbon Dioxide Monitoring. ACS OMEGA 2023; 8:44995-45002. [PMID: 38046328 PMCID: PMC10688157 DOI: 10.1021/acsomega.3c06480] [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: 08/30/2023] [Revised: 10/13/2023] [Accepted: 10/30/2023] [Indexed: 12/05/2023]
Abstract
A fast response microsensor that can detect the distribution of CO2 at the microscale level is essential for the observation of biophysiological activity, carbon flux, and carbon burial. Inspired by the previous success of Cu catalysis, we attempted to use this metal Cu material to develop an amperometric microsensor that can meet the requirements. Specifically, the ambient gases diffuse through a silicone membrane into a trap casing filled with an acidic CrCl2 solution, where the otherwise interfering O2 interferent is removed by a redox with Cr2+. The gases then diffuse through a second silicone membrane into an electrolyte, where CO2 is selectively reduced to methanol (CH3OH) at a Cu cathode through a carbon monoxide (CO) pathway. Due to the use of Cu catalysis at the WE tip, CO2 can be reduced at a less negative polarization (-470 mV) instead of the previously reported -1200 mV, thus avoiding hydrogen-evolution interference due to water from the byproduct or from water diffusion through the silicone membrane. This moderate polarization results in a stable baseline, making the microsensor suitable for long-term monitoring. Interferences from other gases, such as N2O, which may be of much concern in environmental monitoring, can be ignored. Applications and limitations are also discussed with a view to further improvement in the future.
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Affiliation(s)
- Mengwen Guo
- Analysis
Center of College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yao Xun
- Analysis
Center of College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Fuxing Kang
- Analysis
Center of College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Niels Peter Revsbech
- WATEC,
Section for Microbiology, Department of Biology, Aarhus University, Aarhus
C 8000, Denmark
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4
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Mathison R, Ramos Figueroa AL, Bloomquist C, Modestino MA. Electrochemical Manufacturing Routes for Organic Chemical Commodities. Annu Rev Chem Biomol Eng 2023; 14:85-108. [PMID: 36930876 DOI: 10.1146/annurev-chembioeng-101121-090840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
Electrochemical synthesis of organic chemical commodities provides an alternative to conventional thermochemical manufacturing and enables the direct use of renewable electricity to reduce greenhouse gas emissions from the chemical industry. We discuss electrochemical synthesis approaches that use abundant carbon feedstocks for the production of the largest petrochemical precursors and basic organic chemical products: light olefins, olefin oxidation derivatives, aromatics, and methanol. First, we identify feasible routes for the electrochemical production of each commodity while considering the reaction thermodynamics, available feedstocks, and competing thermochemical processes. Next, we summarize successful catalysis and reaction engineering approaches to overcome technological challenges that prevent electrochemical routes from operating at high production rates, selectivity, stability, and energy conversion efficiency. Finally, we provide an outlook on the strategies that must be implemented to achieve large-scale electrochemical manufacturing of major organic chemical commodities.
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Affiliation(s)
- Ricardo Mathison
- Department of Chemical and Biomolecular Engineering, New York University, Brooklyn, New York, USA; , , ,
| | - Alexandra L Ramos Figueroa
- Department of Chemical and Biomolecular Engineering, New York University, Brooklyn, New York, USA; , , ,
| | - Casey Bloomquist
- Department of Chemical and Biomolecular Engineering, New York University, Brooklyn, New York, USA; , , ,
| | - Miguel A Modestino
- Department of Chemical and Biomolecular Engineering, New York University, Brooklyn, New York, USA; , , ,
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5
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Hussain I, Alasiri H, Ullah Khan W, Alhooshani K. Advanced electrocatalytic technologies for conversion of carbon dioxide into methanol by electrochemical reduction: Recent progress and future perspectives. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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6
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Li CF, Guo RT, Zhang ZR, Wu T, Pan WG. Converting CO 2 into Value-Added Products by Cu 2 O-Based Catalysts: From Photocatalysis, Electrocatalysis to Photoelectrocatalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207875. [PMID: 36772913 DOI: 10.1002/smll.202207875] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/19/2023] [Indexed: 05/11/2023]
Abstract
Converting CO2 into value-added products by photocatalysis, electrocatalysis, and photoelectrocatalysis is a promising method to alleviate the global environmental problems and energy crisis. Among the semiconductor materials applied in CO2 catalytic reduction, Cu2 O has the advantages of abundant reserves, low price and environmental friendliness. Moreover, Cu2 O has unique adsorption and activation properties for CO2 , which is conducive to the generation of C2+ products through CC coupling. This review introduces the basic principles of CO2 reduction and summarizes the pathways for the generation of C1 , C2 , and C2+ products. The factors affecting CO2 reduction performance are further discussed from the perspective of the reaction environment, medium, and novel reactor design. Then, the properties of Cu2 O-based catalysts in CO2 reduction are summarized and several optimization strategies to enhance their stability and redox capacity are discussed. Subsequently, the application of Cu2 O-based catalysts in photocatalytic, electrocatalytic, and photoelectrocatalytic CO2 reduction is described. Finally, the opportunities, challenges and several research directions of Cu2 O-based catalysts in the field of CO2 catalytic reduction are presented, which is guidance for its wide application in the energy and environmental fields is provided.
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Affiliation(s)
- Chu-Fan Li
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
| | - Rui-Tang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai, 200090, P. R. China
| | - Zhen-Rui Zhang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
| | - Tong Wu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
| | - Wei-Guo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai, 200090, P. R. China
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7
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Xu Y, Guo Y, Sheng Y, Yu H, Deng K, Wang Z, Li X, Wang H, Wang L. Selective CO 2 Electroreduction to Formate on Polypyrrole-Modified Oxygen Vacancy-Rich Bi 2 O 3 Nanosheet Precatalysts by Local Microenvironment Modulation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300001. [PMID: 37058094 DOI: 10.1002/smll.202300001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 03/30/2023] [Indexed: 06/19/2023]
Abstract
Challenges remain in the development of highly efficient catalysts for selective electrochemical transformation of carbon dioxide (CO2 ) to high-valued hydrocarbons. In this study, oxygen vacancy-rich Bi2 O3 nanosheets coated with polypyrrole (Bi2 O3 @PPy NSs) are designed and synthesized, as precatalysts for selective electrocatalytic CO2 reduction to formate. Systematic material characterization demonstrated that Bi2 O3 @PPy precatalyst can evolve intoBi2 O2 CO3 @PPy nanosheets with rich oxygen vacancies (Bi2 O2 CO3 @PPy NSs) via electrolyte-mediated conversion and function as the real active catalyst for CO2 reduction reaction electrocatalysis. Coating catalyst with a PPy shell can modulate the interfacial microenvironment of active sites, which work in coordination with rich oxygen vacancies in Bi2 O2 CO3 and efficiently mediate directional selective CO2 reduction toward formate formation. With the fine-tuning of interfacial microenvironment, the optimized Bi2 O3 @PPy-2 NSs derived Bi2 O2 CO3 @PPy-2 NSs exhibit a maximum Faradaic efficiency of 95.8% at -0.8 V (versus. reversible hydrogen electrode) for formate production. This work might shed some light on designing advanced catalysts toward selective electrocatalytic CO2 reduction through local microenvironment engineering.
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Affiliation(s)
- You Xu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Yiyi Guo
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Youwei Sheng
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Hongjie Yu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Kai Deng
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Ziqiang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Xiaonian Li
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Hongjing Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Liang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
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8
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Synergistic Enhanced Solar-Driven Water Purification and CO2 Reduction via Photothermal Catalytic Membrane Distillation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.123003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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9
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Ali T, Wang H, Iqbal W, Bashir T, Shah R, Hu Y. Electro-Synthesis of Organic Compounds with Heterogeneous Catalysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 10:e2205077. [PMID: 36398622 PMCID: PMC9811472 DOI: 10.1002/advs.202205077] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Electro-organic synthesis has attracted a lot of attention in pharmaceutical science, medicinal chemistry, and future industrial applications in energy storage and conversion. To date, there has not been a detailed review on electro-organic synthesis with the strategy of heterogeneous catalysis. In this review, the most recent advances in synthesizing value-added chemicals by heterogeneous catalysis are summarized. An overview of electrocatalytic oxidation and reduction processes as well as paired electrocatalysis is provided, and the anodic oxidation of alcohols (monohydric and polyhydric), aldehydes, and amines are discussed. This review also provides in-depth insight into the cathodic reduction of carboxylates, carbon dioxide, CC, C≡C, and reductive coupling reactions. Moreover, the electrocatalytic paired electro-synthesis methods, including parallel paired, sequential divergent paired, and convergent paired electrolysis, are summarized. Additionally, the strategies developed to achieve high electrosynthesis efficiency and the associated challenges are also addressed. It is believed that electro-organic synthesis is a promising direction of organic electrochemistry, offering numerous opportunities to develop new organic reaction methods.
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Affiliation(s)
- Tariq Ali
- Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsDepartment of ChemistryZhejiang Normal UniversityJinhua321004China
| | - Haiyan Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsDepartment of ChemistryZhejiang Normal UniversityJinhua321004China
| | - Waseem Iqbal
- Dipartimento di Chimica e Tecnologie ChimicheUniversità della CalabriaRendeCS87036Italy
| | - Tariq Bashir
- Jiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy TechnologiesSoochow UniversitySuzhou215006China
| | - Rahim Shah
- Institute of Chemical SciencesUniversity of SwatSwatKhyber Pakhtunkhwa19130Pakistan
| | - Yong Hu
- Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsDepartment of ChemistryZhejiang Normal UniversityJinhua321004China
- Hangzhou Institute of Advanced StudiesZhejiang Normal UniversityHangzhou311231China
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10
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Marcos-Madrazo A, Casado-Coterillo C, Iniesta J, Irabien A. Use of Chitosan as Copper Binder in the Continuous Electrochemical Reduction of CO 2 to Ethylene in Alkaline Medium. MEMBRANES 2022; 12:783. [PMID: 36005698 PMCID: PMC9412364 DOI: 10.3390/membranes12080783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
This work explores the potential of novel renewable materials in electrode fabrication for the electrochemical conversion of carbon dioxide (CO2) to ethylene in alkaline media. In this regard, the use of the renewable chitosan (CS) biopolymer as ion-exchange binder of the copper (Cu) electrocatalyst nanoparticles (NPs) is compared with commercial anion-exchange binders Sustainion and Fumion on the fabrication of gas diffusion electrodes (GDEs) for the electrochemical reduction of carbon dioxide (CO2R) in an alkaline medium. They were tested in membrane electrode assemblies (MEAs), where selectivity to ethylene (C2H4) increased when using the Cu:CS GDE compared to the Cu:Sustainion and Cu:Fumion GDEs, respectively, with a Faradaic efficiency (FE) of 93.7% at 10 mA cm-2 and a cell potential of -1.9 V, with a C2H4 production rate of 420 µmol m-2 s-1 for the Cu:CS GDE. Upon increasing current density to 90 mA cm-2, however, the production rate of the Cu:CS GDE rose to 509 µmol/m2s but the FE dropped to 69% due to increasing hydrogen evolution reaction (HER) competition. The control of mass transport limitations by tuning up the membrane overlayer properties in membrane coated electrodes (MCE) prepared by coating a CS-based membrane over the Cu:CS GDE enhanced its selectivity to C2H4 to a FE of 98% at 10 mA cm-2 with negligible competing HER. The concentration of carbon monoxide was below the experimental detection limit irrespective of the current density, with no CO2 crossover to the anodic compartment. This study suggests there may be potential in sustainable alernatives to fossil-based or perfluorinated materials in ion-exchange membrane and electrode fabrication, which constitute a step forward towards decarbonization in the circular economy perspective.
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Affiliation(s)
- Aitor Marcos-Madrazo
- Department of Chemical and Biomolecular Engineering, Universidad de Cantabria, Av. Los Castros s/n, 39005 Santander, Spain
| | - Clara Casado-Coterillo
- Department of Chemical and Biomolecular Engineering, Universidad de Cantabria, Av. Los Castros s/n, 39005 Santander, Spain
| | - Jesús Iniesta
- Department of Physical Chemistry, Institute of Electrochemistry, Universidad de Alicante, Av. Raspeig s/n, 03080 Alicante, Spain
| | - Angel Irabien
- Department of Chemical and Biomolecular Engineering, Universidad de Cantabria, Av. Los Castros s/n, 39005 Santander, Spain
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11
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Wang F, Zhang W, Wan H, Li C, An W, Sheng X, Liang X, Wang X, Ren Y, Zheng X, Lv D, Qin Y. Recent progress in advanced core-shell metal-based catalysts for electrochemical carbon dioxide reduction. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Zhu J, Das S, Cool P. Recent strategies for the electrochemical reduction of CO2 into methanol. ADVANCES IN CATALYSIS 2022. [DOI: 10.1016/bs.acat.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Pan L, Mei H, Zhu G, Li S, Xie X, Gong S, Liu H, Jin Z, Gao J, Cheng L, Zhang L. Bi selectively doped SrTiO 3-x nanosheets enhance photocatalytic CO 2 reduction under visible light. J Colloid Interface Sci 2021; 611:137-148. [PMID: 34942487 DOI: 10.1016/j.jcis.2021.12.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/01/2021] [Accepted: 12/04/2021] [Indexed: 12/27/2022]
Abstract
Converting CO2 into chemical energy by using solar energy is an environmental strategy to achieve carbon neutrality. In this paper, two dimensionality (2D) SrTiO3-x nanosheets with oxygen vacancies were synthesized successfully. Oxygen vacancies will generate defect levels in the band structure of SrTiO3-x. So, SrTiO3-x nanosheets have good photocatalytic CO2 reduction performance under visible light. In order to further improve its photocatalytic efficiency, Bi was used to dope Sr site and Ti site in SrTiO3-x nanosheets respectively. It is found that Sr site is the adsorption site of CO2 molecules. When Bi replaced Sr, CO2 adsorption on the surface of SrTiO3-x nanosheets was weakened. When Bi replaced Ti, there has no effect on CO2 adsorption. Due to the synergistic effect of Bi doping, oxygen vacancies, and Sr active site, the 1.0% Bi-doped Ti site in SrTiO3-x (1.0% Bi-Ti-STO) had the best photocatalytic performance under visible light (λ ≥ 420 nm). CO and CH4 yields were 5.58 umol/g/h and 0.36 umol/g/h. Photocatalytic CO2 reduction path has always been the focus of exploration. The in-situ FTIR spectrum proved the step of photocatalytic CO2 reduction and COO- and COOH are important intermediates in the photocatalytic CO2 reaction.
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Affiliation(s)
- Longkai Pan
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi' an, Shaanxi 710072, China
| | - Hui Mei
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi' an, Shaanxi 710072, China.
| | - Gangqiang Zhu
- School of Physics and Information Technology, Shaanxi Normal University, Xi' an, 710062, China.
| | - Shiping Li
- Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 17035, Republic of Korea
| | - Xiaoqian Xie
- School of Physics and Information Technology, Shaanxi Normal University, Xi' an, 710062, China
| | - Siwen Gong
- School of Physics and Information Technology, Shaanxi Normal University, Xi' an, 710062, China
| | - Hongxia Liu
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi' an, Shaanxi 710072, China
| | - Zhipeng Jin
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi' an, Shaanxi 710072, China
| | - Jianzhi Gao
- School of Physics and Information Technology, Shaanxi Normal University, Xi' an, 710062, China
| | - Laifei Cheng
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi' an, Shaanxi 710072, China
| | - Litong Zhang
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi' an, Shaanxi 710072, China
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14
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Zhu S, Delmo EP, Li T, Qin X, Tian J, Zhang L, Shao M. Recent Advances in Catalyst Structure and Composition Engineering Strategies for Regulating CO 2 Electrochemical Reduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005484. [PMID: 33899277 DOI: 10.1002/adma.202005484] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Indexed: 05/21/2023]
Abstract
Electrochemical CO2 reduction has been recognized as a promising solution in tackling energy- and environment-related challenges of human society. In the past few years, the rapid development of advanced electrocatalysts has significantly improved the efficiency of this reaction and accelerated the practical applications of this technology. Herein, representative catalyst structures and composition engineering strategies in regulating the CO2 reduction selectivity and activity toward various products including carbon monoxide, formate, methane, methanol, ethylene, and ethanol are summarized. An overview of in situ/operando characterizations and advanced computational modeling in deepening the understanding of the reaction mechanisms and accelerating catalyst design are also provided. To conclude, future challenges and opportunities in this research field are discussed.
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Affiliation(s)
- Shangqian Zhu
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ernest Pahuyo Delmo
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Tiehuai Li
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Xueping Qin
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jian Tian
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, China
| | - Lili Zhang
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Jiangsu Key Laboratory for Chemistry of Low-Dimension Materials, Huaiyin Normal University, Huaian, Jiangsu, 223300, China
| | - Minhua Shao
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Energy Institute, Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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15
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Liu H, Ye H, Gao M, Li Q, Liu Z, Xie A, Zhu L, Ho GW, Chen S. Conformal Microfluidic-Blow-Spun 3D Photothermal Catalytic Spherical Evaporator for Omnidirectional Enhanced Solar Steam Generation and CO 2 Reduction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2101232. [PMID: 34363347 PMCID: PMC8498876 DOI: 10.1002/advs.202101232] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/28/2021] [Indexed: 05/19/2023]
Abstract
Solar-driven water evaporation and valuable fuel generation is an environmentally friendly and sustainable way for clean water and energy production. However, a few bottlenecks for practical applications are high-cost, low productivity, and severe sunlight angle dependence. Herein, solar evaporation with enhanced photocatalytic capacity that is light direction insensitive and of efficiency breakthrough by virtue of a three-dimensional (3D) photothermal catalytic spherical isotopic evaporator is demonstrated. A homogeneous layer of microfluidic blow spun polyamide nanofibers loaded with efficient light absorber of polypyrrole nanoparticles conformally wraps onto a lightweight, thermal insulating plastic sphere, featuring favorable interfacial solar heating and efficient water transportation. The 3D spherical geometry not only guarantees the omnidirectional solar absorbance by the light-facing hemisphere, but also keeps the other hemisphere under shadow to harvest energy from the warmer environment. As a result, the light-to-vapor efficiency exceeds the theoretical limit, reaching 217% and 156% under 1 and 2 sun, respectively. Simultaneously, CO2 photoreduction with generated steam reveals a favorable clean fuels production rate using photocatalytic spherical evaporator by secondary growth of Cu2 O nanoparticles. Finally, an outdoor demonstration manifests a high evaporation rate and easy-to-perform construction on-site, providing a promising opportunity for efficient and decentralized water and clean fuel production.
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Affiliation(s)
- Hao Liu
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringJiangsu Key Laboratory of Fine Chemicals and Functional Polymer MaterialsNanjing Tech University5 Xin Mofan RoadNanjing210009P. R. China
| | - Hong‐Gang Ye
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringJiangsu Key Laboratory of Fine Chemicals and Functional Polymer MaterialsNanjing Tech University5 Xin Mofan RoadNanjing210009P. R. China
| | - Minmin Gao
- Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering Drive 3Singapore117583Singapore
| | - Qing Li
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringJiangsu Key Laboratory of Fine Chemicals and Functional Polymer MaterialsNanjing Tech University5 Xin Mofan RoadNanjing210009P. R. China
| | - Zhiwu Liu
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringJiangsu Key Laboratory of Fine Chemicals and Functional Polymer MaterialsNanjing Tech University5 Xin Mofan RoadNanjing210009P. R. China
| | - An‐Quan Xie
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringJiangsu Key Laboratory of Fine Chemicals and Functional Polymer MaterialsNanjing Tech University5 Xin Mofan RoadNanjing210009P. R. China
| | - Liangliang Zhu
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringJiangsu Key Laboratory of Fine Chemicals and Functional Polymer MaterialsNanjing Tech University5 Xin Mofan RoadNanjing210009P. R. China
- CAS Key Laboratory of Carbon MaterialsInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan030001China
| | - Ghim Wei Ho
- Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering Drive 3Singapore117583Singapore
| | - Su Chen
- State Key Laboratory of Materials‐Oriented Chemical EngineeringCollege of Chemical EngineeringJiangsu Key Laboratory of Fine Chemicals and Functional Polymer MaterialsNanjing Tech University5 Xin Mofan RoadNanjing210009P. R. China
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16
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Liu B, Yao X, Zhang Z, Li C, Zhang J, Wang P, Zhao J, Guo Y, Sun J, Zhao C. Synthesis of Cu 2O Nanostructures with Tunable Crystal Facets for Electrochemical CO 2 Reduction to Alcohols. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39165-39177. [PMID: 34382393 DOI: 10.1021/acsami.1c03850] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Electrochemical CO2 reduction enables the conversion of intermittent renewable energy to value-added chemicals and fuel, presenting a promising strategy to relieve CO2 emission and achieve clean energy storage. In this work, we developed nanosized Cu2O catalysts using the hydrothermal method for electrochemical CO2 reduction to alcohols. Cu2O nanoparticles (NPs) of various morphologies that were enclosed with different crystal facets, named as Cu2O-c (cubic structure with (100) facets), Cu2O-o (octahedron structure with (111) facets), Cu2O-t (truncated octahedron structure with both (100) and (111) facets), and Cu2O-u (urchin-like structure with (100), (220), and (222) facets), were prepared by regulating the content of a polyvinyl pyrrolidone (PVP) template. The electrochemical CO2 reduction performance of the different Cu2O NPs was evaluated in the CO2-saturated 0.5 M KHCO3 electrolyte. The as-synthesized Cu2O nanostructures were capable of reducing CO2 to produce alcohols including methanol, ethanol, and isopropanol. The alcohol selectivity of the different Cu2O NPs followed the order of Cu2O-t < Cu2O-u < Cu2O-c < Cu2O-o (with the total Faradaic efficiencies of alcohol products of 10.7, 25.0, 26.2, and 35.4%). The facet-dependent effects were associated with the varied concentrations of oxygen-vacancy defects, different energy barriers of CO2 reduction, and distinct Cu-O bond lengths over the different crystal facets. The desired Cu2O-o catalyst exhibited good reduction activity with the highest partial current density of 0.51 mA/cm2 for alcohols. The Faradaic efficiencies of alcohol products were 4.9% for methanol, 17.9% for ethanol, and 12.6% for isopropanol. The good electrochemical CO2 reduction performance was also associated with the surface reconstruction of Cu2O, which endowed the catalyst with abundant Cu0 and Cu+ sites for promoted CO2 activation and stabilized CO* adsorption for enhanced C-C coupling. This work will provide a new route for enhancing the alcohol selectivity of nanostructured Cu2O catalysts by crystal facet engineering.
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Affiliation(s)
- Bingqian Liu
- School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China
| | - Xi Yao
- School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China
| | - Zijing Zhang
- School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China
| | - Changhai Li
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Jiaqing Zhang
- State Grid Anhui Electric Power Research Institute, Hefei 230022, China
| | - Puyao Wang
- School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China
| | - Jiayi Zhao
- School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China
| | - Yafei Guo
- School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China
| | - Jian Sun
- School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China
| | - Chuanwen Zhao
- School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China
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17
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Segmentation and Classification of Heart Angiographic Images Using Machine Learning Techniques. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:6666458. [PMID: 33575020 PMCID: PMC7861933 DOI: 10.1155/2021/6666458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/09/2021] [Indexed: 11/29/2022]
Abstract
Heart angiography is a test in which the concerned medical specialist identifies the abnormality in heart vessels. This type of diagnosis takes a lot of time by the concerned physician. In our proposed method, we segmented the interested regions of heart vessels and then classified. Segmentation and classification of heart angiography provides significant information for the physician as well as patient. Contradictorily, in the mention domain of heart angiography, the charge is prone to error, phase overwhelming, and thought-provoking task for the physician (heart specialist). An automatic segmentation and classification of heart blood vessels descriptions can improve the truthfulness and speed up the finding of heart illnesses. In this work, we recommend a computer-assisted conclusion arrangement for the localization of human heart blood vessels within heart angiographic imageries by using multiclass ensemble classification mechanism. In the proposed work, the heart blood vessels will be first segmented, and the various features according to accuracy have been extracted. Low-level features such as texture, statistical, and geometrical features were extracted in human heart blood vessels. At last, in the proposed framework, heart blood vessels have been categorized in their four respective classes including normal, block, narrow, and blood flow-reduced vessels. The proposed approach has achieved best result which provides very useful, easy, accurate, and time-saving environment to cardiologists for the diagnosis of heart-related diseases.
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18
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Wang G, Chen J, Ding Y, Cai P, Yi L, Li Y, Tu C, Hou Y, Wen Z, Dai L. Electrocatalysis for CO2 conversion: from fundamentals to value-added products. Chem Soc Rev 2021; 50:4993-5061. [DOI: 10.1039/d0cs00071j] [Citation(s) in RCA: 205] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This timely and comprehensive review mainly summarizes advances in heterogeneous electroreduction of CO2: from fundamentals to value-added products.
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19
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An Analysis of Research on Membrane-Coated Electrodes in the 2001–2019 Period: Potential Application to CO2 Capture and Utilization. Catalysts 2020. [DOI: 10.3390/catal10111226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The chemistry and electrochemistry basic fields have been active for the last two decades of the past century studying how the modification of the electrodes’ surface by coating with conductive thin films enhances their electrocatalytic activity and sensitivity. In light of the development of alternative sustainable ways of energy storage and carbon dioxide conversion by electrochemical reduction, these research studies are starting to jump into the 21st century to more applied fields such as chemical engineering, energy and environmental science, and engineering. The huge amount of literature on experimental works dealing with the development of CO2 electroreduction processes addresses electrocatalyst development and reactor configurations. Membranes can help with understanding and controlling the mass transport limitations of current electrodes as well as leading to novel reactor designs. The present work makes use of a bibliometric analysis directed to the papers published in the 21st century on membrane-coated electrodes and electrocatalysts to enhance the electrochemical reactor performance and their potential in the urgent issue of carbon dioxide capture and utilization.
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20
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Yang C, Li S, Zhang Z, Wang H, Liu H, Jiao F, Guo Z, Zhang X, Hu W. Organic-Inorganic Hybrid Nanomaterials for Electrocatalytic CO 2 Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001847. [PMID: 32510861 DOI: 10.1002/smll.202001847] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/28/2020] [Indexed: 05/03/2023]
Abstract
Electrochemical CO2 reduction (ECR) to value-added chemicals and fuels is regarded as an effective strategy to mitigate climate change caused by CO2 from excess consumption of fossil fuels. To achieve CO2 conversion with high faradaic efficiency, low overpotential, and excellent product selectivity, rational design and synthesis of efficient electrocatalysts is of significant importance, which dominates the development of ECR field. Individual organic molecules or inorganic catalysts have encountered a bottleneck in performance improvement owing to their intrinsic shortcomings. Very recently, organic-inorganic hybrid nanomaterials as electrocatalysts have exhibited high performance and interesting reaction processes for ECR due to the integration of the advantages of both heterogeneous and homogeneous catalytic processes, attracting widespread interest. In this work, the recent advances in designing various organic-inorganic hybrid nanomaterials at the atomic and molecular level for ECR are systematically summarized. Particularly, the reaction mechanism and structure-performance relationship of organic-inorganic hybrid nanomaterials toward ECR are discussed in detail. Finally, the challenges and opportunities toward controlled synthesis of advanced electrocatalysts are proposed for paving the development of the ECR field.
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Affiliation(s)
- Chenhuai Yang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Shuyu Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Zhicheng Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Haiqing Wang
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan, 250022, China
| | - Huiling Liu
- Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
- Tianjin Key Laboratory of Advanced Functional Porous Materials, Tianjin University of Technology, Tianjin, 300384, China
| | - Fei Jiao
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Zhenguo Guo
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Xiaotao Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
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21
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Sheelam A, Muneeb A, Talukdar B, Ravindranath R, Huang SJ, Kuo CH, Sankar R. Flexible and free-standing polyvinyl alcohol-reduced graphene oxide-Cu2O/CuO thin films for electrochemical reduction of carbon dioxide. J APPL ELECTROCHEM 2020. [DOI: 10.1007/s10800-020-01450-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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22
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Yang M, Li PH, Chen SH, Xiao XY, Tang XH, Lin CH, Huang XJ, Liu WQ. Nanometal Oxides with Special Surface Physicochemical Properties to Promote Electrochemical Detection of Heavy Metal Ions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001035. [PMID: 32406188 DOI: 10.1002/smll.202001035] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/26/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Heavy metal ions (HMIs) are one of the major environmental pollution problems currently faced. To monitor and control HMIs, rapid and reliable detection is required. Electrochemical analysis is one of the promising methods for on-site detection and monitoring due to high sensitivity, short response time, etc. Recently, nanometal oxides with special surface physicochemical properties have been widely used as electrode modifiers to enhance sensitivity and selectivity for HMIs detection. In this work, recent advances in the electrochemical detection of HMIs using nanometal oxides, which are attributed to specific crystal facets and phases, surficial defects and vacancies, and oxidation state cycle, are comprehensively summarized and discussed in aspects of synthesis, characterization, electroanalysis application, and mechanism. Moreover, the challenges and opportunities for the development and application of nanometal oxides with functional surface physicochemical properties in electrochemical determination of HMIs are presented.
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Affiliation(s)
- Meng Yang
- Key Laboratory of Environmental Optics and Technology, and Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Pei-Hua Li
- Key Laboratory of Environmental Optics and Technology, and Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Shi-Hua Chen
- Key Laboratory of Environmental Optics and Technology, and Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Xiang-Yu Xiao
- Key Laboratory of Environmental Optics and Technology, and Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Xiang-Hu Tang
- Key Laboratory of Environmental Optics and Technology, and Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Chu-Hong Lin
- Key Laboratory of Environmental Optics and Technology, and Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Xing-Jiu Huang
- Key Laboratory of Environmental Optics and Technology, and Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Wen-Qing Liu
- Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
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23
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Wu H, Li MT, Su ZM. Sulfur-doping polyoxometallate-metal-organic intercalation compound with PPy coating as highly efficient photocatalyst for visible light degradation. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Pavithra K, Kumar SMS. Embedding oxygen vacancies at SnO2–CNT surfaces via a microwave polyol strategy towards effective electrocatalytic reduction of carbon-dioxide to formate. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01960j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A facile and scalable microwave-polyol method has been utilised to introduce vacancies onto SnO2–CNT surfaces which significantly brings down the overpotential to around 150 mV during the electrochemical reduction of CO2.
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Affiliation(s)
- Kumaravelu Pavithra
- Materials Electrochemistry Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
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25
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Zhang X, Chen Z, Mou K, Jiao M, Zhang X, Liu L. Intentional construction of high-performance SnO 2 catalysts with a 3D porous structure for electrochemical reduction of CO 2. NANOSCALE 2019; 11:18715-18722. [PMID: 31589212 DOI: 10.1039/c9nr06354d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Herein, SnO2-NC (SnO2-nanocube) and SnO2-NF (SnO2-nanoflake) electro-catalysts featuring a large specific surface area and 3D porous structure were successfully constructed via acid etching and sulfurization-desulphurization methods, respectively. As catalysts for the electrochemical reduction of CO2, the faradaic efficiency (FHCOO-+CO = 82.4%, 91.5%, respectively) and partial current density (jHCOO-+CO = 10.7 and 11.5 mA cm-2, respectively) of SnO2-NCs and SnO2-NFs were enhanced in comparison with SnO2-NPs (SnO2-nanoparticles, FHCOO-+CO = 63.4%, jHCOO-+CO = 5.7 mA cm-2) at -1.0 V vs. RHE. The enhanced catalytic activity is attributed to their uniform 3D porous structure, high specific surface area and excellent wettability. Additionally, the morphology of SnO2-NCs and SnO2-NFs was largely preserved after electrolyzing for 12 h (after 12 h of electrolysis), indicating the effective buffering effect of the 3D structure in electrolysis. Naturally, the current density and faradaic efficiency of the SnO2-NC and SnO2-NF catalysts remained nearly unchanged after long-term stability measurements, revealing great stability.
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Affiliation(s)
- Xinxin Zhang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China. and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhipeng Chen
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China. and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaiwen Mou
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China. and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingyang Jiao
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China.
| | - Xiangping Zhang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China and Dalian National Laboratory for Clean Energy, CAS, Dalian 116023, China
| | - Licheng Liu
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China. and Dalian National Laboratory for Clean Energy, CAS, Dalian 116023, China
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26
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Marcos‐Madrazo A, Casado‐Coterillo C, Irabien Á. Sustainable Membrane‐Coated Electrodes for CO
2
Electroreduction to Methanol in Alkaline Media. ChemElectroChem 2019. [DOI: 10.1002/celc.201901535] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aitor Marcos‐Madrazo
- Department of Chemical and Biomolecular EngineeringUniversidad de Cantabria Av. Los Castros s/n 39005 Santander Spain
| | - Clara Casado‐Coterillo
- Department of Chemical and Biomolecular EngineeringUniversidad de Cantabria Av. Los Castros s/n 39005 Santander Spain
| | - Ángel Irabien
- Department of Chemical and Biomolecular EngineeringUniversidad de Cantabria Av. Los Castros s/n 39005 Santander Spain
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27
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Sun S, Zhang X, Cui J, Yang Q, Liang S. High-index faceted metal oxide micro-/nanostructures: a review on their characterization, synthesis and applications. NANOSCALE 2019; 11:15739-15762. [PMID: 31433431 DOI: 10.1039/c9nr05107d] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Exposed high-index facets with a high density of low-coordinated atoms (including edges, steps and kinks) can provide more high-active sites for chemical reactions. Therefore, great progress has made in the facet-dependent application of various high-index faceted micro-/nanostructures in the past decades. Previous review papers have mainly highlighted the advances in high-index faceted noble metal nanocrystals. However, to date, there is no specialized review paper on high-index faceted metal oxides and their facet-dependent applications. Thus, in this review, the existing high-index faceted metal oxide micro-/nanostructures, including Cu2O, TiO2, Fe2O3, ZnO, SnO2 and BiVO4, are reviewed based on their characterization, synthesis engineering and facet-dependent applications in the fields of catalysis, sensors, lithium-ion batteries and carbon monoxide oxidation. Also, several challenges and perspectives are presented. Hopefully, this review article will be a useful guideline and resource for researchers currently concentrating on high-index faceted metal oxides to design and synthesize novel micro-/nanostructures for overcoming the practical environment-, biology- and energy-related problems.
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Affiliation(s)
- Shaodong Sun
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, People's Republic of China.
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28
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Synthesis of 42-faceted bismuth vanadate microcrystals for enhanced photocatalytic activity. J Colloid Interface Sci 2019; 542:207-212. [DOI: 10.1016/j.jcis.2019.02.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/29/2019] [Accepted: 02/02/2019] [Indexed: 11/22/2022]
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29
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Towards Higher Rate Electrochemical CO2 Conversion: From Liquid-Phase to Gas-Phase Systems. Catalysts 2019. [DOI: 10.3390/catal9030224] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Electrochemical CO2 conversion offers a promising route for value-added products such as formate, carbon monoxide, and hydrocarbons. As a result of the highly required overpotential for CO2 reduction, researchers have extensively studied the development of catalyst materials in a typical H-type cell, utilizing a dissolved CO2 reactant in the liquid phase. However, the low CO2 solubility in an aqueous solution has critically limited productivity, thereby hindering its practical application. In efforts to realize commercially available CO2 conversion, gas-phase reactor systems have recently attracted considerable attention. Although the achieved performance to date reflects a high feasibility, further development is still required in order for a well-established technology. Accordingly, this review aims to promote the further study of gas-phase systems for CO2 reduction, by generally examining some previous approaches from liquid-phase to gas-phase systems. Finally, we outline major challenges, with significant lessons for practical CO2 conversion systems.
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30
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Sustainable Recovery of CO2 by Using Visible-Light-Responsive Crystal Cuprous Oxide/Reduced Graphene Oxide. SUSTAINABILITY 2018. [DOI: 10.3390/su10114145] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A simple solution-chemistry method has been investigated to prepare crystal cuprous oxide (Cu2O) incorporated with reduced graphene oxide (designated as Cu2O-rGO-x, where x represents the contents of rGO = 1%, 5% and 10%) in this work. These Cu2O-rGO-x composites combine the prospective advantages of rhombic dodecahedra Cu2O together with rGO nanosheets which have been studied as visible-light-sensitive catalysts for the photocatalytic production of methanol from CO2. Among the Cu2O-rGO-x photocatalysts, the methanol yield photocatalyzed by Cu2O-rGO-5% can be observed to be 355.26 μmol g−1cat, which is ca. 36 times higher than that of pristine Cu2O nanocrystal in the 20th hour under visible light irradiation. The improved activity may be attributed to the enhanced absorption ability of visible light, the superior separation of electron–hole pairs, well-dispersed Cu2O nanocrystals and the increased photostability of Cu2O, which are evidenced by employing UV-vis diffuse reflection spectroscopy, photoluminescence, scanning electron microscopy/transmission electron microscopy and X-ray photoelectron spectroscopy, respectively. This work demonstrates an easy and cost-effective route to prepare non-noble photocatalysts for efficient CO2 recovery in artificial photosynthesis.
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