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Cui W, Wang F, Wang X, Li Y, Wang X, Shi Y, Song S, Zhang H. Designing Dual-Site Catalysts for Selectively Converting CO 2 into Methanol. Angew Chem Int Ed Engl 2024; 63:e202407733. [PMID: 38735859 DOI: 10.1002/anie.202407733] [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: 04/23/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/14/2024]
Abstract
The variability of CO2 hydrogenation reaction demands new potential strategies to regulate the fine structure of the catalysts for optimizing the reaction pathways. Herein, we report a dual-site strategy to boost the catalytic efficiency of CO2-to-methanol conversion. A new descriptor, τ, was initially established for screening the promising candidates with low-temperature activation capability of CO2, and sequentially a high-performance catalyst was fabricated centred with oxophilic Mo single atoms, who was further decorated with Pt nanoparticles. In CO2 hydrogenation, the obtained dual-site catalysts possess a remarkably-improved methanol generation rate (0.27 mmol gcat. -1 h-1). For comparison, the singe-site Mo and Pt-based catalysts can only produce ethanol and formate acid at a relatively low reaction rate (0.11 mmol gcat. -1 h-1 for ethanol and 0.034 mmol gcat. -1 h-1 for formate acid), respectively. Mechanism studies indicate that the introduction of Pt species could create an active hydrogen-rich environment, leading to the alterations of the adsorption configuration and conversion pathways of the *OCH2 intermediates on Mo sites. As a result, the catalytic selectivity was successfully switched.
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Affiliation(s)
- Wenjie Cui
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Fei Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xiao Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yuou Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xiaomei Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yi Shi
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Shuyan Song
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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2
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Liu S, Wang X, Chen Y, Li Y, Wei Y, Shao T, Ma J, Jiang W, Xu J, Dong Y, Wang C, Liu H, Gao C, Xiong Y. Efficient Thermal Management with Selective Metamaterial Absorber for Boosting Photothermal CO 2 Hydrogenation under Sunlight. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311957. [PMID: 38324747 DOI: 10.1002/adma.202311957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/14/2024] [Indexed: 02/09/2024]
Abstract
Photothermal catalytic CO2 hydrogenation is a prospective strategy to simultaneously reduce CO2 emission and generate value-added fuels. However, the demand of extremely intense light hinders its development in practical applications. Herein, this work reports the novel design of Ni-based selective metamaterial absorber and employs it as the photothermal catalyst for CO2 hydrogenation. The selective absorption property reduces the heat loss caused by radiation while possessing effectively solar absorption, thus substantially increasing local photothermal temperature. Notably, the enhancement of local electric field by plasmon resonance promotes the adsorption and activation of reactants. Moreover, benefiting from the ingenious morphology that Ni nanoparticles (NPs) are encapsulated by SiO2 matrix through co-sputtering, the greatly improved dispersion of Ni NPs enables enhancing the contact with reaction gas and preventing the agglomeration. Consequently, the catalyst exhibits an unprecedented CO2 conversion rate of 516.9 mmol gcat -1 h-1 under 0.8 W cm-2 irradiation, with near 90% CO selectivity and high stability. Significantly, this designed photothermal catalyst demonstrates the great potential in practical applications under sunlight. This work provides new sights for designing high-performance photothermal catalysts by thermal management.
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Affiliation(s)
- Shengkun Liu
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xin Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Engineering Research Center of Carbon Neutrality, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, P. R. China
| | - Yihong Chen
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yaping Li
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yu Wei
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Tianyi Shao
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jun Ma
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Wenbin Jiang
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Junchi Xu
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yueyue Dong
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Chengming Wang
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Hengjie Liu
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Chao Gao
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yujie Xiong
- School of Chemistry and Materials Science, Center for Micro and Nanoscale Research and Fabrication, Hefei National Research Center for Physical Sciences at the Microscale, Instruments Center for Physical Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Engineering Research Center of Carbon Neutrality, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241000, P. R. China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, P. R. China
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Chen W, Zuo J, Sang K, Qian G, Zhang J, Chen D, Zhou X, Yuan W, Duan X. Leveraging the Proximity and Distribution of Cu-Cs Sites for Direct Conversion of Methanol to Esters/Aldehydes. Angew Chem Int Ed Engl 2024; 63:e202314288. [PMID: 37988201 DOI: 10.1002/anie.202314288] [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: 09/24/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
Methanol serves as a versatile building-block for various commodity chemicals, and the development of industrially promising strategies for its conversion remains the ultimate goal in methanol chemistry. In this study, we design a dual Cu-Cs catalytic system that enables a one-step direct conversion of methanol and methyl acetate/ethanol into high value-added esters/aldehydes, with customized chain length and saturation by leveraging the proximity and distribution of Cu-Cs sites. Cu-Cs at a millimeter-scale intimacy triggers methanol dehydrogenation and condensation, involving proton transfer, aldol formation, and aldol condensation, to obtain unsaturated esters and aldehydes with selectivities of 76.3 % and 31.1 %, respectively. Cu-Cs at a micrometer-scale intimacy significantly promotes mass transfer of intermediates across catalyst interfaces and their subsequent hydrogenation to saturated esters and aldehydes with selectivities of 67.6 % and 93.1 %, respectively. Conversely, Cu-Cs at a nanometer-scale intimacy alters reaction pathway with a similar energy barrier for the rate-determining step, but blocks the acidic-basic sites and diverts the reaction to byproducts. More importantly, an unprecedented quadruple tandem catalytic production of methyl methacrylate (MMA) is achieved by further tailoring Cu and Cs distribution across the reaction bed in the configuration of Cu-Cs||Cs, outperforming the existing industrial processes and saving at least 15 % of production costs.
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Affiliation(s)
- Wenyao Chen
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Ji Zuo
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Keng Sang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Gang Qian
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jing Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Xinggui Zhou
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Weikang Yuan
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xuezhi Duan
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
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4
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Lu Z, Xu Y, Zhang Z, Sun J, Ding X, Sun W, Tu W, Zhou Y, Yao Y, Ozin GA, Wang L, Zou Z. Wettability Engineering of Solar Methanol Synthesis. J Am Chem Soc 2023; 145:26052-26060. [PMID: 37982690 DOI: 10.1021/jacs.3c07349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Engineering the wettability of surfaces with hydrophobic organics has myriad applications in heterogeneous catalysis and the large-scale chemical industry; however, the mechanisms behind may surpass the proverbial hydrophobic kinetic benefits. Herein, the well-studied In2O3 methanol synthesis photocatalyst has been used as an archetype platform for a hydrophobic treatment to enhance its performance. With this strategy, the modified samples facilitated the tuning of a wide range of methanol production rates and selectivity, which were optimized at 1436 μmol gcat-1 h-1 and 61%, respectively. Based on in situ DRIFTS and temperature-programmed desorption-mass spectrometry, the surface-decorated alkylsilane coating on In2O3 not only kinetically enhanced the methanol synthesis by repelling the produced polar molecules but also donated surface active H to facilitate the subsequent hydrogenation reaction. Such a wettability design strategy seems to have universal applicability, judged by its success with other CO2 hydrogenation catalysts, including Fe2O3, CeO2, ZrO2, and Co3O4. Based on the discovered kinetic and mechanistic benefits, the enhanced hydrogenation ability enabled by hydrophobic alkyl groups unleashes the potential of the surface organic chemistry modification strategy for other important catalytic hydrogenation reactions.
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Affiliation(s)
- Zhe Lu
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, P. R. China
| | - Yangfan Xu
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, 10, Toronto, Ontario M5S 3H6, Canada
| | - Zeshu Zhang
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, P. R. China
| | - Junchuan Sun
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, P. R. China
| | - Xue Ding
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, P. R. China
| | - Wei Sun
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Wenguang Tu
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, P. R. China
| | - Yong Zhou
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, P. R. China
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, P. R. China
| | - Yingfang Yao
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, P. R. China
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, P. R. China
| | - Geoffrey A Ozin
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, 10, Toronto, Ontario M5S 3H6, Canada
| | - Lu Wang
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, P. R. China
| | - Zhigang Zou
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, P. R. China
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, P. R. China
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5
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Agyekum EB, Adebayo TS, Ampah JD, Chakraborty S, Mehmood U, Nutakor C. Transportation in Africa under Paris Agreement 2 °C goal-a review of electric vehicle potentials, cleaner alternative fuels for the sector, challenges, and opportunities. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-30911-z. [PMID: 37953420 DOI: 10.1007/s11356-023-30911-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 11/01/2023] [Indexed: 11/14/2023]
Abstract
Currently, internal combustion engines and fossil fuels are the major powertrains and fuels for the transportation sector, despite their enormous emissions. This study reviews the status of electric vehicles (EVs) in Africa, the potential barriers that affect their large-scale adoption, and the continent's potential to produce cleaner alternative fuels for transportation and find the strengths, weaknesses, opportunities, and threats (SWOT) to produce alternative fuels in Africa. First, the review looked at challenges confronting the adoption of EVs in Africa, some of which include high upfront costs, poor grid systems, frequent blackouts, inadequate infrastructure (roads and charging systems), and the dominance of used conventional vehicles. The various cleaner alternative fuels, i.e., hydrogen, biogas, ethanol, methanol, ammonia, biodiesel, and vegetable oils, and their potential on the African continent were also reviewed. The last section of the study employed the SWOT analytical tool to assess the strengths, weaknesses, opportunities, and threats in the alternative fuel industry in Africa. Factors such as competition from existing technologies, inadequate funding, feeble linkages between research and production, unsustainable policies for the sector, cultural constraints and lack of awareness, volatile financial systems, and low levels of foreign direct investment are some of the identified threats that could affect the development of alternative fuels in Africa. Similarly, factors such as the continuous decline in the cost of renewable energy technologies and heightened awareness of the adverse effects of GHG on the environment were identified as opportunities for the development of alternative fuels for the transport sector.
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Affiliation(s)
- Ephraim Bonah Agyekum
- Department of Nuclear and Renewable Energy, Ural Federal University Named After the First President of Russia Boris Yeltsin, 19 Mira Street, Ekaterinburg, 620002, Russia.
| | - Tomiwa Sunday Adebayo
- Faculty of Economics and Administrative Science, Cyprus International University, Nicosia, Mersin 10, Northern Cyprus, Turkey
| | - Jeffrey Dankwa Ampah
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Suprava Chakraborty
- TIFAC-CORE, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - Usman Mehmood
- Remote Sensing, GIS and Climatic Research Lab (National Centre of GIS and Space Applications), Centre for Remote Sensing, University of the Punjab, Lahore, 54590, Pakistan
- Department of Political Science, University of Management and Technology, Lahore, 54770, Pakistan
| | - Christabel Nutakor
- Department of Biochemistry and Forensic Science, C. K. Tedam University of Technology and Applied Sciences, P.O. Box 24, Navrongo, Ghana
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Nabera A, Istrate IR, Martín AJ, Pérez-Ramírez J, Guillén-Gosálbez G. Energy crisis in Europe enhances the sustainability of green chemicals. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2023; 25:6603-6611. [PMID: 38013722 PMCID: PMC10464097 DOI: 10.1039/d3gc01053h] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/23/2023] [Indexed: 11/29/2023]
Abstract
Ammonia and methanol are essential to modern societies, but their production has been heavily reliant on natural gas, which contributes to supply disruptions and significant CO2 emissions. While low-carbon or green production routes have been extensively researched, their adoption has been hindered by higher costs, making them unsustainable. However, a recent energy crisis in Europe has created a unique opportunity to shift towards greener production technologies. Here we show that, green ammonia, produced through wind-powered water electrolysis, had the potential to outperform its fossil counterpart for six months as of December 2021, while methanol produced through CO2 capture and wind-based water electrolysis became an economically appealing alternative. With a coordinated effort from academia, industry, and policymakers, Europe can lead the grand transition towards more sustainable practices in the chemical industry.
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Affiliation(s)
- Abhinandan Nabera
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 Zürich 8093 Switzerland
| | - Ioan-Robert Istrate
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 Zürich 8093 Switzerland
| | - Antonio José Martín
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 Zürich 8093 Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 Zürich 8093 Switzerland
| | - Gonzalo Guillén-Gosálbez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 Zürich 8093 Switzerland
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Yuan Z, Zhu X, Jiang Z. Recent Advances of Constructing Metal/Semiconductor Catalysts Designing for Photocatalytic CO 2 Hydrogenation. Molecules 2023; 28:5693. [PMID: 37570663 PMCID: PMC10419965 DOI: 10.3390/molecules28155693] [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: 06/29/2023] [Revised: 07/20/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
With the development of the world economy and the rapid advancement of global industrialization, the demand for energy continues to grow. The significant consumption of fossil fuels, such as oil, coal, and natural gas, has led to excessive carbon dioxide emissions, causing global ecological problems. CO2 hydrogenation technology can convert CO2 into high-value chemicals and is considered one of the potential ways to solve the problem of CO2 emissions. Metal/semiconductor catalysts have shown good activity in carbon dioxide hydrogenation reactions and have attracted widespread attention. Therefore, we summarize the recent research on metal/semiconductor catalysts for photocatalytic CO2 hydrogenation from the design of catalysts to the structure of active sites and mechanistic investigations, and the internal mechanism of the enhanced activity is elaborated to give guidance for the design of highly active catalysts. Finally, based on a good understanding of the above issues, this review looks forward to the development of future CO2 hydrogenation catalysts.
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Affiliation(s)
- Zhimin Yuan
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University, Weifang 261061, China
| | - Xianglin Zhu
- Institute for Energy Research, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zaiyong Jiang
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University, Weifang 261061, China
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Liu Y, Liu C, Zhou H, Qin G, Li S. Steering photocatalytic selectivity of Au/γ-Al2O3 for benzyl alcohol oxidation via direct photoexcitation. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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9
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Larrea C, Avilés-Moreno JR, Ocón P. Strategies to Enhance CO 2 Electrochemical Reduction from Reactive Carbon Solutions. Molecules 2023; 28:molecules28041951. [PMID: 36838939 PMCID: PMC9960053 DOI: 10.3390/molecules28041951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/15/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
CO2 electrochemical reduction (CO2 ER) from (bi)carbonate feed presents an opportunity to efficiently couple this process to alkaline-based carbon capture systems. Likewise, while this method of reducing CO2 currently lags behind CO2 gas-fed electrolysers in certain performance metrics, it offers a significant improvement in CO2 utilization which makes the method worth exploring. This paper presents two simple modifications to a bicarbonate-fed CO2 ER system that enhance the selectivity towards CO. Specifically, a modified hydrophilic cathode with Ag catalyst loaded through electrodeposition and the addition of dodecyltrimethylammonium bromide (DTAB), a low-cost surfactant, to the catholyte enabled the system to achieve a FECO of 85% and 73% at 100 and 200 mA·cm-2, respectively. The modifications were tested in 4 h long experiments where DTAB helped maintain FECO stable even when the pH of the catholyte became more alkaline, and it improved the CO2 utilization compared to a system without DTAB.
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10
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Jawhari AH, Hasan N, Radini IA, Narasimharao K, Malik MA. Noble Metals Deposited LaMnO 3 Nanocomposites for Photocatalytic H 2 Production. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12172985. [PMID: 36080023 PMCID: PMC9458141 DOI: 10.3390/nano12172985] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/21/2022] [Accepted: 08/23/2022] [Indexed: 06/01/2023]
Abstract
Due to the growing demand for hydrogen, the photocatalytic hydrogen production from alcohols present an intriguing prospect as a potential source of low-cost renewable energy. The noble metals (Ag, Au, Pd and Pt) deposited LaMnO3 nanocomposites were synthesized by a non-conventional green bio-reduction method using aqueous lemon peel extract, which acts as both reducing and capping agent. The successful deposition of the noble metals on the surface of LaMnO3 was verified by using powder XRD, FTIR, TEM, N2-physisorption, DR UV-vis spectroscopy, and XPS techniques. The photocatalytic activity of the synthesized nanocomposites was tested for photocatalytic H2 production under visible light irradiation. Different photocatalytic reaction parameters such as reaction time, pH, catalyst mass and reaction temperature were investigated to optimize the reaction conditions for synthesized nanocomposites. Among the synthesized noble metal deposited LaMnO3 nanocomposites, the Pt-LaMnO3 nanocomposite offered superior activity for H2 production. The enhanced photocatalytic activity of the Pt-LaMnO3 was found as a result from low bandgap energy, high photoelectrons generation and enhanced charge separation due to deposition of Pt nanoparticles. The effective noble metal deposition delivers a new route for the development of plasmonic noble metal-LaMnO3 nanocomposites for photocatalytic reforming of aqueous methanol to hydrogen.
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Affiliation(s)
- Ahmed Hussain Jawhari
- Department of Chemistry, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia
| | - Nazim Hasan
- Department of Chemistry, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia
| | - Ibrahim Ali Radini
- Department of Chemistry, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia
| | | | - Maqsood Ahmad Malik
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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11
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Zhang Z, Zheng Y, Qian L, Luo D, Dou H, Wen G, Yu A, Chen Z. Emerging Trends in Sustainable CO 2 -Management Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201547. [PMID: 35307897 DOI: 10.1002/adma.202201547] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/07/2022] [Indexed: 06/14/2023]
Abstract
With the rising level of atmospheric CO2 worsening climate change, a promising global movement toward carbon neutrality is forming. Sustainable CO2 management based on carbon capture and utilization (CCU) has garnered considerable interest due to its critical role in resolving emission-control and energy-supply challenges. Here, a comprehensive review is presented that summarizes the state-of-the-art progress in developing promising materials for sustainable CO2 management in terms of not only capture, catalytic conversion (thermochemistry, electrochemistry, photochemistry, and possible combinations), and direct utilization, but also emerging integrated capture and in situ conversion as well as artificial-intelligence-driven smart material study. In particular, insights that span multiple scopes of material research are offered, ranging from mechanistic comprehension of reactions, rational design and precise manipulation of key materials (e.g., carbon nanomaterials, metal-organic frameworks, covalent organic frameworks, zeolites, ionic liquids), to industrial implementation. This review concludes with a summary and new perspectives, especially from multiple aspects of society, which summarizes major difficulties and future potential for implementing advanced materials and technologies in sustainable CO2 management. This work may serve as a guideline and road map for developing CCU material systems, benefiting both scientists and engineers working in this growing and potentially game-changing area.
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Affiliation(s)
- Zhen Zhang
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Yun Zheng
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Lanting Qian
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Dan Luo
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Haozhen Dou
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Guobin Wen
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Aiping Yu
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Zhongwei Chen
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
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Jia X, Lin H, Cao J, Hu C, Sun H, Chen S. Synergistic introduction of oxygen vacancy and silver/silver iodide: Realizing deep structure regulation on bismuth oxybromide for robust carbon dioxide reduction and pollutant oxidation. J Colloid Interface Sci 2022; 624:181-195. [PMID: 35660887 DOI: 10.1016/j.jcis.2022.05.101] [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: 03/27/2022] [Revised: 05/05/2022] [Accepted: 05/17/2022] [Indexed: 10/18/2022]
Abstract
To efficiently solve severe energy shortage and environmental pollution issues, step-scheme (S-scheme) photocatalytic system, as perfect photocatalyst with strong redox ability and swift separation efficiency of carriers, has been considered a feasible tactic. Herein, a novel S-scheme silver/silver iodide/bismuth oxybromide heterojunction with rich oxygen vacancies (OVs) (labeled as Ag/AgI/BiO1-xBr) was in situ fabricated via a simple photodeposition-precipitation method. It was discovered that the obtained Ag/AgI/BiO1-xBr heterojunction with the optimized molar ratio of silver/bismuth (Ag/Bi) at 0.4 presented excellent photocatalytic properties for carbon dioxide (CO2) reduction (2.46 μmol g-1h-1 carbon monoxide (CO) and 1.25 μmol g-1h-1 methane (CH4) generation) and antibiotic tetracycline (TC) removal (96.7%) even in actual waste water or in the presence of electrolytes. The enhanced performance of S-scheme Ag/AgI/BiO1-xBr composite may be ascribed to the collaborative effect of OVs and silver/silver iodide (Ag/AgI), in which OVs acted as the charge transmission bridge for reducing the interface migration resistance of the charge and Ag/AgI served as a cocatalyst for enhancing the separation efficiency of carriers. Furthermore, a feasible photocatalytic mechanism was discussed via density functional theory calculation and in-situ X-ray photoelectron spectroscopy. This work not only demonstrated the synergistic application of OVs transmission bridge and Ag/AgI cocatalyst, but also provided a facile way to design high-efficiency and stable photocatalysts for energy production and environmental remediation.
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Affiliation(s)
- Xuemei Jia
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China.
| | - Haili Lin
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China
| | - Jing Cao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China.
| | - Cheng Hu
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China
| | - Haoyu Sun
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China
| | - Shifu Chen
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China
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14
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New black indium oxide—tandem photothermal CO2-H2 methanol selective catalyst. Nat Commun 2022; 13:1512. [PMID: 35314721 PMCID: PMC8938479 DOI: 10.1038/s41467-022-29222-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 02/28/2022] [Indexed: 12/14/2022] Open
Abstract
It has long been known that the thermal catalyst Cu/ZnO/Al2O3(CZA) can enable remarkable catalytic performance towards CO2 hydrogenation for the reverse water-gas shift (RWGS) and methanol synthesis reactions. However, owing to the direct competition between these reactions, high pressure and high hydrogen concentration (≥75%) are required to shift the thermodynamic equilibrium towards methanol synthesis. Herein, a new black indium oxide with photothermal catalytic activity is successfully prepared, and it facilitates a tandem synthesis of methanol at a low hydrogen concentration (50%) and ambient pressure by directly using by-product CO as feedstock. The methanol selectivities achieve 33.24% and 49.23% at low and high hydrogen concentrations, respectively. Harsh reaction conditions are generally required for CO2 hydrogenation to shift the thermodynamic equilibrium towards methanol synthesis. Here, a new black indium oxide with two types of active sites, frustrated Lewis pairs and oxygen vacancies, is prepared, and facilitates a tandem synthesis of methanol at a low hydrogen concentration (50%) and ambient pressure.
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15
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Cu-Ga3+-doped wurtzite ZnO interface as driving force for enhanced methanol production in co-precipitated Cu/ZnO/Ga2O3 catalysts. J Catal 2022. [DOI: 10.1016/j.jcat.2022.01.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Wang J, Qu X, Djitcheu X, Meng Q, Ni Z, Liu H, Zhang Q. Photo-assisted effective and selective reduction of CO 2 to methanol on a Cu–ZnO–ZrO 2 catalyst. NEW J CHEM 2022. [DOI: 10.1039/d2nj03441g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Highly selective catalysis of CO2 hydrogenation to methanol with photo-assistance on Cu–ZnO–ZrO2, a photothermal synergistic catalyst.
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Affiliation(s)
- Jian Wang
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, 121001, P. R. China
| | - Xiuli Qu
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, 121001, P. R. China
| | - Xavier Djitcheu
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, 121001, P. R. China
| | - Qingrun Meng
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, 121001, P. R. China
| | - Zenan Ni
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, 121001, P. R. China
| | - Huimin Liu
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, 121001, P. R. China
| | - Qijian Zhang
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, 121001, P. R. China
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17
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Hernández-Pérez LG, Villicaña-García E, Cansino-Loeza B, Alsuhaibani AS, El-Halwagi MM, Ponce-Ortega JM. Incorporating the occupational health in the optimization for the methanol process. J Loss Prev Process Ind 2022. [DOI: 10.1016/j.jlp.2021.104660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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19
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Giachino A, Focarelli F, Marles-Wright J, Waldron KJ. Synthetic biology approaches to copper remediation: bioleaching, accumulation and recycling. FEMS Microbiol Ecol 2021; 97:6021318. [PMID: 33501489 DOI: 10.1093/femsec/fiaa249] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 12/02/2020] [Indexed: 12/20/2022] Open
Abstract
One of the current aims of synthetic biology is the development of novel microorganisms that can mine economically important elements from the environment or remediate toxic waste compounds. Copper, in particular, is a high-priority target for bioremediation owing to its extensive use in the food, metal and electronic industries and its resulting common presence as an environmental pollutant. Even though microbe-aided copper biomining is a mature technology, its application to waste treatment and remediation of contaminated sites still requires further research and development. Crucially, any engineered copper-remediating chassis must survive in copper-rich environments and adapt to copper toxicity; they also require bespoke adaptations to specifically extract copper and safely accumulate it as a human-recoverable deposit to enable biorecycling. Here, we review current strategies in copper bioremediation, biomining and biorecycling, as well as strategies that extant bacteria use to enhance copper tolerance, accumulation and mineralization in the native environment. By describing the existing toolbox of copper homeostasis proteins from naturally occurring bacteria, we show how these modular systems can be exploited through synthetic biology to enhance the properties of engineered microbes for biotechnological copper recovery applications.
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Affiliation(s)
- Andrea Giachino
- Faculty of Medical Sciences, Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom
| | - Francesca Focarelli
- Faculty of Medical Sciences, Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom
| | - Jon Marles-Wright
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Kevin J Waldron
- Faculty of Medical Sciences, Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom
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20
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Guo J, Duchesne PN, Wang L, Song R, Xia M, Ulmer U, Sun W, Dong Y, Loh JYY, Kherani NP, Du J, Zhu B, Huang W, Zhang S, Ozin GA. High-Performance, Scalable, and Low-Cost Copper Hydroxyapatite for Photothermal CO2 Reduction. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03806] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jiuli Guo
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, P. R. China
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Paul N. Duchesne
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Lu Wang
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Guangdong 518172, P. R. China
| | - Rui Song
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Meikun Xia
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Ulrich Ulmer
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Wei Sun
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Yuchan Dong
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Joel Y. Y. Loh
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
- Department of Electrical and Computer Engineering, Department of Materials Science and Engineering, University of Toronto, Toronto M5S 3E4, Canada
| | - Nazir P. Kherani
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
- Department of Electrical and Computer Engineering, Department of Materials Science and Engineering, University of Toronto, Toronto M5S 3E4, Canada
| | - Jimin Du
- School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, P. R. China
| | - Baolin Zhu
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Weiping Huang
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Shoumin Zhang
- Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE), TKL of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Geoffrey A. Ozin
- Solar Fuels Group, Centre for Inorganic and Polymeric Nanomaterials, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
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21
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Porous Copper/Zinc Bimetallic Oxides Derived from MOFs for Efficient Photocatalytic Reduction of CO2 to Methanol. Catalysts 2020. [DOI: 10.3390/catal10101127] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A novel metal organic framework (MOF)-derived porous copper/zinc bimetallic oxide catalyst was developed for the photoreduction of CO2 to methanol at a very fast rate of 3.71 mmol gcat−1 h−1. This kind of photocatalyst with high activity, selectivity and a simple preparation catalyst provides promising photocatalyst candidates for reducing CO2 to methanol.
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22
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Li Y, Walsh AG, Li D, Do D, Ma H, Wang C, Zhang P, Zhang X. W-Doped TiO 2 for photothermocatalytic CO 2 reduction. NANOSCALE 2020; 12:17245-17252. [PMID: 32808949 DOI: 10.1039/d0nr03393f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
TiO2 is one of the most widely used photocatalysts and photothermocatalysts. Tailoring their structure and electronic properties is crucial for the design of high-performance TiO2 catalysts. Herein, we report a strategy to significantly enhance the performance of TiO2 in the photothermocatalytic reduction of CO2 by doping high crystalline nano-TiO2 with tungsten. A variety of tungsten doping concentrations ranging from 2% to 10% were tested and they all showed enhanced catalytic activities. The 4% W-doped TiO2 exhibited the highest activity, which was 3.5 times greater than that of the undoped TiO2 reference. Structural characterization of these W-doped TiO2 catalysts indicated that W was successfully doped into the TiO2 lattice at relatively low dopant concentration. Synchrotron X-ray absorption spectroscopy at both the W L3- and Ti K-edges was further used to provide insight into the local structure and bonding properties of the catalysts. It was found that the replacement of Ti with W led to the formation of Ti vacancies in order to maintain the charge neutrality. Consequently, dangling oxygen and oxygen vacancies were produced that acted as catalytically active sites for the CO2 reduction. As the W doping concentration increased from 2% to 4%, more such active sites were generated which thus resulted in the enhancement of the catalytic activity. When the W doping concentration was further increased to 10%, the extra W species that cannot replace the Ti in the lattice aggregated to form WO3. Due to the lower conduction band of WO3, the catalytic O sites were deactivated and CO2 reduction was inhibited. This work presents a useful strategy for the development of highly efficient catalysts for CO2 reduction as well as new insights into the catalytic mechanism in cation-doped TiO2 photothermocatalysis.
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Affiliation(s)
- Yingying Li
- Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China.
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23
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Ji Y, Wang G, Fan T, Luo Y. First-Principles Study on the Molecular Mechanism of Solar-Driven CO 2 Reduction on H-Terminated Si. CHEMSUSCHEM 2020; 13:3524-3529. [PMID: 32274880 DOI: 10.1002/cssc.202000338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/09/2020] [Indexed: 06/11/2023]
Abstract
Solar-driven conversion of CO2 with H-terminated silicon has recently attracted increasing interest. However, the molecular mechanism of the reaction is still not well understood. A systematic study of the mechanism has been carried out with first-principles calculations. The formation energies of the intermediates are found to be insensitive to the structure of the surface. On the fully H-terminated Si(111) surface, several pathways for the conversion of CO2 into CO at a coordinatively saturated Si site are studied, including the conventional COOH* pathway and the direct insertion of CO2 into Si-H and Si-Si bonds. Although the barrier of the COOH* pathway is lowest among the three pathways, it is higher than that for OH* elimination, which suggests that CO2 should be converted by other types of active site. The reaction at the isolated and dual coordinatively unsaturated (CUS) Si sites, which can be generated by light illumination, heat, and Pd loading, are then studied. The results suggest that the most efficient pathway to convert CO2 is to convert it into CO and O* at an isolated CUS Si site before O* reacts with a terminating H* to form adsorbed OH* and generate new isolated CUS Si sites. Therefore, the CUS Si site catalyzes the reaction until all H* is converted into OH*. The results provide new insight into the mechanism of the reaction and should be helpful for the design of more efficient Si-based catalysts for CO2 conversion.
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Affiliation(s)
- Yongfei Ji
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, P.R. China
| | - Gang Wang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, P.R. China
| | - Ting Fan
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, P.R. China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. China
- KTH, the Royal Institute of Technology, Department of Theoretical Chemistry and Biology, 106 91, Stockholm, Sweden
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24
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Zhao J, Shi R, Li Z, Zhou C, Zhang T. How to make use of methanol in green catalytic hydrogen production? NANO SELECT 2020. [DOI: 10.1002/nano.202000010] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Jiaqi Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsChinese Academy of SciencesTechnical Institute of Physics and Chemistry Beijing 100190 China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Run Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsChinese Academy of SciencesTechnical Institute of Physics and Chemistry Beijing 100190 China
| | - Zhenhua Li
- College of ChemistryCentral China Normal University Wuhan 430079 China
| | - Chao Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsChinese Academy of SciencesTechnical Institute of Physics and Chemistry Beijing 100190 China
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsChinese Academy of SciencesTechnical Institute of Physics and Chemistry Beijing 100190 China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of Sciences Beijing 100049 China
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25
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Feng K, Wang S, Zhang D, Wang L, Yu Y, Feng K, Li Z, Zhu Z, Li C, Cai M, Wu Z, Kong N, Yan B, Zhong J, Zhang X, Ozin GA, He L. Cobalt Plasmonic Superstructures Enable Almost 100% Broadband Photon Efficient CO 2 Photocatalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2000014. [PMID: 32390222 DOI: 10.1002/adma.202000014] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 04/04/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
The efficiency of heterogeneous photocatalysis for converting solar to chemical energy is low on a per photon basis mainly because of the difficulty of capturing and utilizing light across the entire solar spectral wavelength range. This challenge is addressed herein with a plasmonic superstructure, fashioned as an array of nanoscale needles comprising cobalt nanocrystals assembled within a sheath of porous silica grown on a fluorine tin oxide substrate. This plasmonic superstructure can strongly absorb sunlight through different mechanisms including enhanced plasmonic excitation by the hybridization of Co nanoparticles in close proximity, as well as inter- and intra-band transitions. With nearly 100% sunlight harvesting ability, it drives the photothermal hydrogenation of carbon dioxide with a 20-fold rate increase from the silica-supported cobalt catalyst. The present work bridges the gap between strong light-absorbing plasmonic superstructures with photothermal CO2 catalysis toward the complete utilization of the solar energy.
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Affiliation(s)
- Kai Feng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Shenghua Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Dake Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Lu Wang
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster, Department of Chemistry, University of Toronto, Toronto, Ontario, M5S 3H6, Canada
| | - Yingying Yu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Kun Feng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Zhao Li
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster, Department of Chemistry, University of Toronto, Toronto, Ontario, M5S 3H6, Canada
| | - Zhijie Zhu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Chaoran Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Mujin Cai
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Zhiyi Wu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Ning Kong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Binhang Yan
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Jun Zhong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Xiaohong Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
| | - Geoffrey A Ozin
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster, Department of Chemistry, University of Toronto, Toronto, Ontario, M5S 3H6, Canada
| | - Le He
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University-Western University Centre for Synchrotron Radiation Research, Soochow University, Suzhou, 215123, P. R. China
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26
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Yin H, Dou Y, Chen S, Zhu Z, Liu P, Zhao H. 2D Electrocatalysts for Converting Earth-Abundant Simple Molecules into Value-Added Commodity Chemicals: Recent Progress and Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904870. [PMID: 31573704 DOI: 10.1002/adma.201904870] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/05/2019] [Indexed: 06/10/2023]
Abstract
The electrocatalytic conversion of earth-abundant simple molecules into value-added commodity chemicals can transform current chemical production regimes with enormous socioeconomic and environmental benefits. For these applications, 2D electrocatalysts have emerged as a new class of high-performance electrocatalyst with massive forward-looking potential. Recent advances in 2D electrocatalysts are reviewed for emerging applications that utilize naturally existing H2 O, N2 , O2 , Cl- (seawater) and CH4 (natural gas) as reactants for nitrogen reduction (N2 → NH3 ), two-electron oxygen reduction (O2 → H2 O2 ), chlorine evolution (Cl- → Cl2 ), and methane partial oxidation (CH4 → CH3 OH) reactions to generate NH3 , H2 O2 , Cl2 , and CH3 OH. The unique 2D features and effective approaches that take advantage of such features to create high-performance 2D electrocatalysts are articulated with emphasis. To benefit the readers and expedite future progress, the challenges facing the future development of 2D electrocatalysts for each of the above reactions and the related perspectives are provided.
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Affiliation(s)
- Huajie Yin
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Yuhai Dou
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Shan Chen
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Zhengju Zhu
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Porun Liu
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
| | - Huijun Zhao
- Centre for Clean Environment and Energy, Griffith University, Southport, Queensland, 4222, Australia
- Centre for Environmental and Energy Nanomaterials, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
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27
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Xie B, Wong RJ, Tan TH, Higham M, Gibson EK, Decarolis D, Callison J, Aguey-Zinsou KF, Bowker M, Catlow CRA, Scott J, Amal R. Synergistic ultraviolet and visible light photo-activation enables intensified low-temperature methanol synthesis over copper/zinc oxide/alumina. Nat Commun 2020; 11:1615. [PMID: 32235859 PMCID: PMC7109065 DOI: 10.1038/s41467-020-15445-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/26/2020] [Indexed: 12/04/2022] Open
Abstract
Although photoexcitation has been employed to unlock the low-temperature equilibrium regimes of thermal catalysis, mechanism underlining potential interplay between electron excitations and surface chemical processes remains elusive. Here, we report an associative zinc oxide band-gap excitation and copper plasmonic excitation that can cooperatively promote methanol-production at the copper-zinc oxide interfacial perimeter of copper/zinc oxide/alumina (CZA) catalyst. Conversely, selective excitation of individual components only leads to the promotion of carbon monoxide production. Accompanied by the variation in surface copper oxidation state and local electronic structure of zinc, electrons originating from the zinc oxide excitation and copper plasmonic excitation serve to activate surface adsorbates, catalysing key elementary processes (namely formate conversion and hydrogen molecule activation), thus providing one explanation for the observed photothermal activity. These observations give valuable insights into the key elementary processes occurring on the surface of the CZA catalyst under light-heat dual activation.
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Affiliation(s)
- Bingqiao Xie
- School of Chemical Engineering, UNSW Australia, Sydney, NSW, 2052, Australia
| | - Roong Jien Wong
- Applied Chemistry and Environmental Science, School of Science, RMIT University, Melbourne, VIC, 3000, Australia
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon, OX11 0FA, UK
| | - Tze Hao Tan
- School of Chemical Engineering, UNSW Australia, Sydney, NSW, 2052, Australia
| | - Michael Higham
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon, OX11 0FA, UK
- School of Chemistry, Cardiff University, Park Place, Cardiff, CF10 1AT, UK
| | - Emma K Gibson
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon, OX11 0FA, UK
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Donato Decarolis
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon, OX11 0FA, UK
- School of Chemistry, Cardiff University, Park Place, Cardiff, CF10 1AT, UK
| | - June Callison
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon, OX11 0FA, UK
- School of Chemistry, Cardiff University, Park Place, Cardiff, CF10 1AT, UK
| | | | - Michael Bowker
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon, OX11 0FA, UK
- School of Chemistry, Cardiff University, Park Place, Cardiff, CF10 1AT, UK
| | - C Richard A Catlow
- UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon, OX11 0FA, UK
- School of Chemistry, Cardiff University, Park Place, Cardiff, CF10 1AT, UK
- Department of Chemistry, University College London, 20 Gordon St, London, WC1 HOAJ, UK
| | - Jason Scott
- School of Chemical Engineering, UNSW Australia, Sydney, NSW, 2052, Australia.
| | - Rose Amal
- School of Chemical Engineering, UNSW Australia, Sydney, NSW, 2052, Australia.
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28
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Pan Q, Li A, Zhang Y, Yang Y, Cheng C. Rational Design of 3D Hierarchical Ternary SnO 2/TiO 2/BiVO 4 Arrays Photoanode toward Efficient Photoelectrochemical Performance. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902235. [PMID: 32042560 PMCID: PMC7001624 DOI: 10.1002/advs.201902235] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/28/2019] [Indexed: 05/09/2023]
Abstract
BiVO4 as a promising semiconductor absorber is widely investigated as photoanode in photoelectrochemical water splitting. Herein, the rational design of 3D hierarchical ternary SnO2/TiO2/BiVO4 arrays is reported as photoanode for photoelectrochemical application, in which the SnO2 hierarchically hollow microspheres core/nanosheets shell arrays act as conductive skeletons, while the sandwiched TiO2 and surface BiVO4 are working as hole blocking layer and light absorber, respectively. Arising to the hierarchically ordered structure and synergistic effect between each component in the composite, the ternary SnO2/TiO2/BiVO4 photoanode enables high light harvesting efficiency as well as enhanced charge transport and separation efficiency, yielding a maximum photocurrent density of ≈5.03 mA cm-2 for sulfite oxidation and ≈3.1 mA cm-2 for water oxidation, respectively, measured at 1.23 V versus reversible hydrogen electrode under simulated air mass (AM) 1.5 solar light illumination. The results reveal that electrode design and interface engineering play important roles on the overall PEC performance.
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Affiliation(s)
- Qin Pan
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and TechnologySchool of Physics Science and EngineeringTongji UniversityShanghai200092P. R. China
| | - Aoshuang Li
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and TechnologySchool of Physics Science and EngineeringTongji UniversityShanghai200092P. R. China
| | - Yuanlu Zhang
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and TechnologySchool of Physics Science and EngineeringTongji UniversityShanghai200092P. R. China
| | - Yaping Yang
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and TechnologySchool of Physics Science and EngineeringTongji UniversityShanghai200092P. R. China
| | - Chuanwei Cheng
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and TechnologySchool of Physics Science and EngineeringTongji UniversityShanghai200092P. R. China
- Institute of Dongguan‐Tongji UniversityDongguanGuangdong523808P. R. China
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29
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Dong Y, Duchesne P, Mohan A, Ghuman KK, Kant P, Hurtado L, Ulmer U, Loh JYY, Tountas AA, Wang L, Jelle A, Xia M, Dittmeyer R, Ozin GA. Shining light on CO2: from materials discovery to photocatalyst, photoreactor and process engineering. Chem Soc Rev 2020. [DOI: 10.1039/d0cs00597e] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Materials engineering, theoretical modelling, reactor engineering and process development of gas-phase photocatalytic CO2 reduction exemplified by indium oxide systems.
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30
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Zhang P, Peng X, Araki Y, Fang Y, Zeng Y, Kosol R, Yang G, Tsubaki N. Fabrication of a CuZn-based catalyst using a polyethylene glycol surfactant and supercritical drying. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00961j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We employed PEG treatment and supercritical CO2 drying to improve the traditional co-precipitation method for fabrication of CuZn-based catalysts for alcohol-assisted low-temperature methanol synthesis.
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Affiliation(s)
- Peipei Zhang
- Department of Applied Chemistry
- School of Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Xiaobo Peng
- Department of Applied Chemistry
- School of Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Yuya Araki
- Department of Applied Chemistry
- School of Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Yuan Fang
- Department of Applied Chemistry
- School of Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Yan Zeng
- Department of Applied Chemistry
- School of Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Rungtiwa Kosol
- Department of Applied Chemistry
- School of Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Guohui Yang
- Department of Applied Chemistry
- School of Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Noritatsu Tsubaki
- Department of Applied Chemistry
- School of Engineering
- University of Toyama
- Toyama 930-8555
- Japan
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31
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Gao W, Liang S, Wang R, Jiang Q, Zhang Y, Zheng Q, Xie B, Toe CY, Zhu X, Wang J, Huang L, Gao Y, Wang Z, Jo C, Wang Q, Wang L, Liu Y, Louis B, Scott J, Roger AC, Amal R, He H, Park SE. Industrial carbon dioxide capture and utilization: state of the art and future challenges. Chem Soc Rev 2020; 49:8584-8686. [DOI: 10.1039/d0cs00025f] [Citation(s) in RCA: 272] [Impact Index Per Article: 68.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review covers the sustainable development of advanced improvements in CO2 capture and utilization.
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32
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Wu X, Jiang Y, Yan Y, Li X, Luo S, Huang J, Li J, Shen R, Yang D, Zhang H. Tuning Surface Structure of Pd 3Pb/Pt n Pb Nanocrystals for Boosting the Methanol Oxidation Reaction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1902249. [PMID: 31871873 PMCID: PMC6918111 DOI: 10.1002/advs.201902249] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/29/2019] [Indexed: 05/15/2023]
Abstract
Developing an efficient Pt-based electrocatalyst with well-defined structures for the methanol oxidation reaction (MOR) is critical, however, still remains a challenge. Here, a one-pot approach is reported for the synthesis of Pd3Pb/Pt n Pb nanocubes with tunable Pt composition varying from 3.50 to 2.37 and 2.07, serving as electrocatalysts toward MOR. Their MOR activities increase in a sequence of Pd3Pb/Pt3.50Pb << Pd3Pb/Pt2.07Pb < Pd3Pb/Pt2.37Pb, which are substantially higher than that of commercial Pt/C. Specifically, Pd3Pb/Pt2.37Pb electrocatalysts achieve the highest specific (13.68 mA cm-2) and mass (8.40 A mgPt -1) activities, which are ≈8.8 and 6.8 times higher than those of commercial Pt/C, respectively. Structure characterizations show that Pd3Pb/Pt2.37Pb and Pd3Pb/Pt2.07Pb are dominated by hexagonal-structured PtPb intermetallic phase on the surface, while the surface of Pd3Pb/Pt3.50Pb is mainly composed of face-centered cubic (fcc)-structured Pt x Pb phase. As such, hexagonal-structured PtPb phase is much more active than the fcc-structured Pt x Pb one toward MOR. This demonstration is supported by density functional theory calculations, where the hexagonal-structured PtPb phase shows the lowest adsorption energy of CO. The decrease in CO adsorption energy and structural stability also endows Pd3Pb/Pt n Pb electrocatalysts with superior durability relative to commercial Pt/C.
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Affiliation(s)
- Xingqiao Wu
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Yi Jiang
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Yucong Yan
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Xiao Li
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Sai Luo
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Jingbo Huang
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Junjie Li
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Rong Shen
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Deren Yang
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
| | - Hui Zhang
- State Key Laboratory of Silicon Materials and School of Materials Science & EngineeringZhejiang UniversityHangzhou310027China
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