1
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Liang H, Zhang Y, Zhang X, Zhao E, Xue W, Nie E, Chen J, Zuo S, Zhou M. Conductivity-mediated in situ electrochemical reconstruction of CuO x for nitrate reduction to ammonia. NANOSCALE 2024; 16:13895-13904. [PMID: 38973493 DOI: 10.1039/d4nr01625d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
The electrocatalytic nitrate reduction reaction (NO3RR) is an ideal NH3 synthesis route with ease of operation, high energy efficiency, and low environmental detriment. Electrocatalytic cathodes play a dominant role in the NO3RR. Herein, we constructed a carbon fiber paper-supported CuOx nanoarray catalyst (CP/CuOx) by an in situ electrochemical reconstruction method for NO3--to-NH3 conversion. A series of characterization techniques, such as X-ray diffraction (XRD) and in situ Raman spectroscopy, unveil that CP/CuOx is a polycrystalline-faceted composite copper nanocatalyst with a valence composition containing Cu0, Cu+ and Cu2+. CP/CuOx shows more efficient NO3--to-NH3 conversion than CP/Cu and CP/Cu2O, which indicates that the coexistence of various Cu valence states could play a dominant role. CP/CuOx with a suitable Cu2+ content obtained by adjusting the conductivity during the in situ electrochemical reconstruction process exhibited more than 90% faradaic efficiencies for the NO3RR in a broad range of -0.3 to -1.0 V vs. RHE, 28.65 mg cm-2 h-1 peak ammonia yield, and stable NO3RR efficiencies for ten cycles. These findings suggest that CP/CuOx with suitable copper valence states obtained by fine-tuning the conductivity of the electrochemical reconstruction may provide a competitive cathode catalyst for achieving excellent activity and selectivity of NO3--to-NH3 conversion.
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Affiliation(s)
- Hao Liang
- State of Key Laboratory of Natural Medicines, School of Engineering, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Yinqiao Zhang
- State of Key Laboratory of Natural Medicines, School of Engineering, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Xiaona Zhang
- State of Key Laboratory of Natural Medicines, School of Engineering, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Erzhuo Zhao
- School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Wendan Xue
- Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Enguang Nie
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, PR China
| | - Jianqiu Chen
- State of Key Laboratory of Natural Medicines, School of Engineering, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Sijin Zuo
- State of Key Laboratory of Natural Medicines, School of Engineering, China Pharmaceutical University, Nanjing 210009, PR China.
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China
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2
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Chipoco Haro DA, Barrera L, Iriawan H, Herzog A, Tian N, Medford AJ, Shao-Horn Y, Alamgir FM, Hatzell MC. Electrocatalysts for Inorganic and Organic Waste Nitrogen Conversion. ACS Catal 2024; 14:9752-9775. [PMID: 38988657 PMCID: PMC11232026 DOI: 10.1021/acscatal.4c01398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 07/12/2024]
Abstract
Anthropogenic activities have disrupted the natural nitrogen cycle, increasing the level of nitrogen contaminants in water. Nitrogen contaminants are harmful to humans and the environment. This motivates research on advanced and decarbonized treatment technologies that are capable of removing or valorizing nitrogen waste found in water. In this context, the electrocatalytic conversion of inorganic- and organic-based nitrogen compounds has emerged as an important approach that is capable of upconverting waste nitrogen into valuable compounds. This approach differs from state-of-the-art wastewater treatment, which primarily converts inorganic nitrogen to dinitrogen, and organic nitrogen is sent to landfills. Here, we review recent efforts related to electrocatalytic conversion of inorganic- and organic-based nitrogen waste. Specifically, we detail the role that electrocatalyst design (alloys, defects, morphology, and faceting) plays in the promotion of high-activity and high-selectivity electrocatalysts. We also discuss the impact of wastewater constituents. Finally, we discuss the critical product analyses required to ensure that the reported performance is accurate.
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Affiliation(s)
- Danae A Chipoco Haro
- School of Materials Science and Engineering, Georgia Institute of Technology, North Avenue 771 Ferst Dr., Atlanta, Georgia 30332, United States
| | - Luisa Barrera
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 770 Ferst Ave, Atlanta, Georgia 30309, United States
| | - Haldrian Iriawan
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Antonia Herzog
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Nianhan Tian
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Andrew J Medford
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Yang Shao-Horn
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Faisal M Alamgir
- School of Materials Science and Engineering, Georgia Institute of Technology, North Avenue 771 Ferst Dr., Atlanta, Georgia 30332, United States
| | - Marta C Hatzell
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 770 Ferst Ave, Atlanta, Georgia 30309, United States
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3
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Wei J, Li Y, Lin H, Lu X, Zhou C, Li YY. Copper-based electro-catalytic nitrate reduction to ammonia from water: Mechanism, preparation, and research directions. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2024; 20:100383. [PMID: 38304117 PMCID: PMC10830547 DOI: 10.1016/j.ese.2023.100383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/21/2023] [Accepted: 12/21/2023] [Indexed: 02/03/2024]
Abstract
Global water bodies are increasingly imperiled by nitrate pollution, primarily originating from industrial waste, agricultural runoffs, and urban sewage. This escalating environmental crisis challenges traditional water treatment paradigms and necessitates innovative solutions. Electro-catalysis, especially utilizing copper-based catalysts, known for their efficiency, cost-effectiveness, and eco-friendliness, offer a promising avenue for the electro-catalytic reduction of nitrate to ammonia. In this review, we systematically consolidate current research on diverse copper-based catalysts, including pure Cu, Cu alloys, oxides, single-atom entities, and composites. Furthermore, we assess their catalytic performance, operational mechanisms, and future research directions to find effective, long-term solutions to water purification and ammonia synthesis. Electro-catalysis technology shows the potential in mitigating nitrate pollution and has strategic importance in sustainable environmental management. As to the application, challenges regarding complexity of the real water, the scale-up of the commerical catalysts, and the efficient collection of produced NH3 are still exist. Following reseraches of catalyst specially on long term stability and in situ mechanisms are proposed.
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Affiliation(s)
| | | | | | | | - Chucheng Zhou
- Shenzhen Key Laboratory of Special Functional Materials & Shenzhen Engineering Laboratory for Advance Technology of Ceramics, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Ya-yun Li
- Shenzhen Key Laboratory of Special Functional Materials & Shenzhen Engineering Laboratory for Advance Technology of Ceramics, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, PR China
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4
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Mushtaq MA, Kumar A, Liu W, Ji Q, Deng Y, Yasin G, Saad A, Raza W, Zhao J, Ajmal S, Wu Y, Ahmad M, Lashari NUR, Wang Y, Li T, Sun S, Zheng D, Luo Y, Cai X, Sun X. A Metal Coordination Number Determined Catalytic Performance in Manganese Borides for Ambient Electrolysis of Nitrogen to Ammonia. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313086. [PMID: 38341608 DOI: 10.1002/adma.202313086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/30/2024] [Indexed: 02/12/2024]
Abstract
A new strategy that can effectively increase the nitrogen reduction reaction performance of catalysts is proposed and verified by tuning the coordination number of metal atoms. It is found that the intrinsic activity of Mn atoms in the manganese borides (MnBx) increases in tandem with their coordination number with B atoms. Electron-deficient boron atoms are capable of accepting electrons from Mn atoms, which enhances the adsorption of N2 on the Mn catalytic sites (*) and the hydrogenation of N2 to form *NNH intermediates. Furthermore, the increase in coordination number reduces the charge density of Mn atoms at the Fermi level, which facilitates the desorption of ammonia from the catalyst surface. Notably, the MnB4 compound with a Mn coordination number of up to 12 exhibits a high ammonia yield rate (74.9 ± 2.1 µg h-1 mgcat -1) and Faradaic efficiency (38.5 ± 2.7%) at -0.3 V versus reversible hydrogen electrode (RHE) in a 0.1 m Li2SO4 electrolyte, exceeding those reported for other boron-related catalysts.
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Affiliation(s)
- Muhammad Asim Mushtaq
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Anuj Kumar
- Nano-Technology Research Laboratory, Department of Chemistry, GLA University, Mathura, Uttar Pradesh, 281406, India
| | - Wei Liu
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Qianqian Ji
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Yonggui Deng
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Ghulam Yasin
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Ali Saad
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Waseem Raza
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Jie Zhao
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Saira Ajmal
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Yanyan Wu
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Muhammad Ahmad
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Najeeb Ur Rehman Lashari
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Yan Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
| | - Tingshuai Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
| | - Shengjun Sun
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong, 250014, China
| | - Dongdong Zheng
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong, 250014, China
| | - Yongsong Luo
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong, 250014, China
| | - Xingke Cai
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Xuping Sun
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong, 250014, China
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5
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Hao R, Song Y, Yang L, Guo Y, Wu X, Ma Z, Qian Z, Liu F, Wu Z, Wang L. Electrochemical Reduction of Flue Gas Denitrification Wastewater to Ammonia Using a Dual-Defective Cu 2O@Cu Heterojunction Electrode. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5557-5566. [PMID: 38412381 DOI: 10.1021/acs.est.3c09811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Wet flue gas denitrification offers a new route to convert industrial nitrogen oxides (NOx) into highly concentrated nitrate wastewater, from which the nitrogen resource can be recovered to ammonia (NH3) via electrochemical nitrate reduction reactions (NITRRs). Low-cost, scalable, and efficient cathodic materials need to be developed to enhance the NH3 production rate. Here, in situ electrodeposition was adopted to fabricate a foamy Cu-based heterojunction electrode containing both Cu-defects and oxygen vacancy loaded Cu2O (OVs-Cu2O), which achieved an NH3 yield rate of 3.59 mmol h-1 cm-2, NH3 Faradaic efficiency of 99.5%, and NH3 selectivity of 100%. Characterizations and theoretical calculations unveiled that the Cu-defects and OVs-Cu2O heterojunction boosted the H* yield, suppressed the hydrogen evolution reaction (HER), and served as dual reaction sites to coherently match the tandem reactions kinetics of NO3-to-NO2 and NO2-to-NH3. An integrated system was further built to combine wet flue gas denitrification and desulfurization, simultaneously converting NO and SO2 to produce the (NH4)2SO4 fertilizer. This study offers new insights into the application of low-cost Cu-based cathode for electrochemically driven wet denitrification wastewater valorization.
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Affiliation(s)
- Runlong Hao
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, PR China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, PR China
| | - Yunchang Song
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, PR China
| | - Longlong Yang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, PR China
| | - Yongxue Guo
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, PR China
| | - Xuanhao Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, PR China
| | - Zhao Ma
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, PR China
| | - Zhen Qian
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, PR China
| | - Feng Liu
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, PR China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, PR China
| | - Zhongbiao Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, PR 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, PR China
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6
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Sun S, Dai C, Zhao P, Xi S, Ren Y, Tan HR, Lim PC, Lin M, Diao C, Zhang D, Wu C, Yu A, Koh JCJ, Lieu WY, Seng DHL, Sun L, Li Y, Tan TL, Zhang J, Xu ZJ, Seh ZW. Spin-related Cu-Co pair to increase electrochemical ammonia generation on high-entropy oxides. Nat Commun 2024; 15:260. [PMID: 38177119 PMCID: PMC10766993 DOI: 10.1038/s41467-023-44587-z] [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: 06/19/2023] [Accepted: 12/20/2023] [Indexed: 01/06/2024] Open
Abstract
The electrochemical conversion of nitrate to ammonia is a way to eliminate nitrate pollutant in water. Cu-Co synergistic effect was found to produce excellent performance in ammonia generation. However, few studies have focused on this effect in high-entropy oxides. Here, we report the spin-related Cu-Co synergistic effect on electrochemical nitrate-to-ammonia conversion using high-entropy oxide Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O. In contrast, the Li-incorporated MgCoNiCuZnO exhibits inferior performance. By correlating the electronic structure, we found that the Co spin states are crucial for the Cu-Co synergistic effect for ammonia generation. The Cu-Co pair with a high spin Co in Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O can facilitate ammonia generation, while a low spin Co in Li-incorporated MgCoNiCuZnO decreases the Cu-Co synergistic effect on ammonia generation. These findings offer important insights in employing the synergistic effect and spin states inside for selective catalysis. It also indicates the generality of the magnetic effect in ammonia synthesis between electrocatalysis and thermal catalysis.
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Affiliation(s)
- Shengnan Sun
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Chencheng Dai
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Republic of Singapore
- The Cambridge Centre for Advanced Research and Education in Singapore, 1 CREATE Way, Singapore, 138602, Republic of Singapore
| | - Peng Zhao
- Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Republic of Singapore
| | - Shibo Xi
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE²), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
| | - Yi Ren
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Hui Ru Tan
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Poh Chong Lim
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Ming Lin
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Caozheng Diao
- Singapore Synchrotron Light Sources (SSLS), National University of Singapore, 5 Research Link, Singapore, 117603, Republic of Singapore
| | - Danwei Zhang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Chao Wu
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE²), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Republic of Singapore
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Anke Yu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Republic of Singapore
| | - Jie Cheng Jackson Koh
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Republic of Singapore
| | - Wei Ying Lieu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Republic of Singapore
| | - Debbie Hwee Leng Seng
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Libo Sun
- The Cambridge Centre for Advanced Research and Education in Singapore, 1 CREATE Way, Singapore, 138602, Republic of Singapore
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, P. R. China
| | - Yuke Li
- Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Republic of Singapore
| | - Teck Leong Tan
- Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Republic of Singapore
| | - Jia Zhang
- Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Republic of Singapore.
| | - Zhichuan J Xu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Republic of Singapore.
| | - Zhi Wei Seh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore.
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7
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Wang Y, Cao Y, Hai Y, Wang X, Su S, Ding W, Liu Z, Li X, Luo M. Metal-organic framework-derived Cu nanoparticle binder-free monolithic electrodes with multiple support structures for electrocatalytic nitrate reduction to ammonia. Dalton Trans 2023; 52:11213-11221. [PMID: 37522833 DOI: 10.1039/d3dt01412f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Electrocatalytic nitrate reduction to ammonia, which removes nitrates from aquatic ecosystems, is a potential alternative to the classical Haber-Bosch process. Nevertheless, the selectivity of ammonia is often affected by the toxic by-product nitrite. Here, the polyhedral-supported Cu nanoparticle binder-free monolithic electrode (Cu-BTC-Cu) is synthesized by the in situ electroreduction of Cu metal-organic framework (Cu-MOF) precursors. The Cu-BTC-Cu displays a high ammonia yield of 4.00 mg h-1 cm-2cat and a faradaic efficiency of 83.8% in 0.05 M K2SO4 (pH = 7), greatly outperforming the rod-supported (Cu-BTEC-Cu) and unsupported (Cu-BDC-Cu) Cu nanoparticle monolithic electrodes. Impressively, the Cu-BTC-Cu can inhibit significantly the release of by-product NO2- and present favourable stability after 10 consecutive cycles. These preeminent properties can be attributed to the polyhedral structure, which enables better dispersion of Cu nanoparticles and brings more active sites. Moreover, the reaction mechanism of Cu-BTC-Cu is analysed by electrochemical in situ characterization and several key intermediates are captured. This work provides new insights into the modification of the electrocatalytic nitrate reduction activity of Cu-based catalysts and ideas for the design of high-efficiency electrodes.
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Affiliation(s)
- Yingying Wang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China.
| | - Yue Cao
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China.
| | - Yan Hai
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China.
| | - Xinyan Wang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China.
| | - Senda Su
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China.
| | - Wenming Ding
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China.
| | - Zhenyu Liu
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China.
| | - Xiaoman Li
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China.
| | - Min Luo
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China.
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8
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Liu Z, Shen F, Shi L, Tong Q, Tang M, Li Y, Peng M, Jiao Z, Jiang Y, Ao L, Fu W, Lv X, Jiang G, Hou L. Electronic Structure Optimization and Proton-Transfer Enhancement on Titanium Oxide-Supported Copper Nanoparticles for Enhanced Nitrogen Recycling from Nitrate-Contaminated Water. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023. [PMID: 37364020 DOI: 10.1021/acs.est.3c03431] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Electrocatalytic reduction of nitrate to NH3 (NO3RR) on Cu offers sustainable NH3 production and nitrogen recycling from nitrate-contaminated water. However, Cu affords limited NO3RR activity owing to its unfavorable electronic state and the slow proton transfer on its surface, especially in neutral/alkaline media. Furthermore, although a synchronous "NO3RR and NH3 collection" system has been developed for nitrogen recycling from nitrate-laden water, no system is designed for natural water that generally contains low-concentration nitrate. Herein, we demonstrate that depositing Cu nanoparticles on a TiO2 support enables the formation of electron-deficient Cuδ+ species (0 < δ ≤ 2), which are more active than Cu0 in NO3RR. Furthermore, TiO2-Cu coupling induces local electric-field enhancement that intensifies water adsorption/dissociation at the interface, accelerating proton transfer for NO3RR on Cu. With the dual enhancements, TiO2-Cu delivers an NH3-N selectivity of 90.5%, mass activity of 41.4 mg-N h gCu-1, specific activity of 377.8 mg-N h-1 m-2, and minimal Cu leaching (<25.4 μg L-1) when treating 22.5 mg L-1 of NO3--N at -0.40 V, outperforming most of the reported Cu-based catalysts. A sequential NO3RR and NH3 collection system based on TiO2-Cu was then proposed, which could recycle nitrogen from nitrate-contaminated water under a wide concentration window of 22.5-112.5 mg L-1 at a rate of 209-630 mgN m-2 h-1. We also demonstrated this system could collect 83.9% of nitrogen from NO3--N (19.3 mg L-1) in natural lake water.
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Affiliation(s)
- Zixun Liu
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Fei Shen
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Li Shi
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Qiuwen Tong
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Mu'e Tang
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yiming Li
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Min Peng
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Zhaojie Jiao
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yan Jiang
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Liang Ao
- Chongqing Academy of Eco-Environmental Science, Chongqing 400700, China
- Chongqing Institute of Geology and Mineral Resources, Chongqing 400700, China
| | - Wenyang Fu
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Xiaoshu Lv
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Guangming Jiang
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
- Chongqing Academy of Eco-Environmental Science, Chongqing 400700, China
- Chongqing Institute of Geology and Mineral Resources, Chongqing 400700, China
| | - Li'an Hou
- High Tech Inst Beijing, Beijing 100000, China
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Ingavale S, Marbaniang P, Palabathuni M, Kale VN, Mishra N. Decoration of boron nanoparticles on a graphene sheet for ammonia production from nitrate. NANOSCALE 2023. [PMID: 37338060 DOI: 10.1039/d3nr01089a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Clean water and sanitation are two of the most important challenges worldwide and the main source for freshwater is groundwater. Nowadays, water is polluted by human activities. Concern about the presence of nitrates (NO3-) in groundwater is increasing day-by-day due to the intensive use of fertilizers and other anthropogenic sources, such as sewage or industrial wastewater discharge. Thus, the main solution available is to remove NO3- from groundwater and transfer it back to a usable nitrogen source. Electrochemical reduction of NO3- to ammonia (NH3) under ambient conditions is a highly desirable method and it needs an efficient electrocatalyst. In this work, we synthesized a composite of amorphous boron with graphene oxide (B@GO) as an efficient catalyst for the nitrate reduction reaction. XRD and TEM analysis revealed an amorphous boron decoration on the graphene oxide sheet, and XPS confirmed that no bonding between boron and carbon occurs. In B@GO, a stronger defect carbon peak was observed than in GO and there was a random distribution of boron particles on the surface of the graphene nanosheets. Amorphous boron exhibits a higher bond energy, more reactivity, and chemical activity toward nitrate ions, which could be due to the lone pair present in the B atoms and could also be due to the edge oxidized B atoms. B@GO has a high number of active sites exposed leading to excellent nitrate reduction performance with a faradaic efficiency of 61.88% and good ammonia formation rate of 40006 μg h-1 mcat-1 at -0.8 V versus reversible hydrogen electrode.
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Affiliation(s)
- Sagar Ingavale
- Department of Chemistry, SRM University-AP, Andhra Pradesh, Neerukonda, Guntur (Dt), Andhra Pradesh, 522240, India
| | - Phiralang Marbaniang
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Manoj Palabathuni
- Department of Chemistry, SRM University-AP, Andhra Pradesh, Neerukonda, Guntur (Dt), Andhra Pradesh, 522240, India
| | - Vaibhav Namdev Kale
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, 603203, India
| | - Nimai Mishra
- Department of Chemistry, SRM University-AP, Andhra Pradesh, Neerukonda, Guntur (Dt), Andhra Pradesh, 522240, India
- Institute of Chemical Technology Mumbai, IOC Odisha Campus Bhubaneswar, Bhubaneswar, Odisha, 751013, India.
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10
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Zhang S, Zhao F, Yasin G, Dong Y, Zhao J, Guo Y, Tsiakaras P, Zhao J. Efficient photocatalytic hydrogen evolution: Linkage units engineering in triazine-based conjugated porous polymers. J Colloid Interface Sci 2023; 637:41-54. [PMID: 36682117 DOI: 10.1016/j.jcis.2023.01.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/31/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023]
Abstract
Conjugated porous polymers (CPPs) have been widely reported as promising photocatalysts. However, the realization of powerful photocatalytic hydrogen production performance still benefits from the rational design of molecular frameworks and the appropriate choice of building monomers. Herein, we synthesized two novel conjugated porous polymers (CPPs) by copolymerizing pyrene and 1,3,5-triazine building blocks. It is found that minor structural changes in the peripheral groups of the triazine units can greatly affect the photocatalytic activity of the polymers. Compared with the phenyl-linkage unit, the thiophene-linkage unit can give CPP a wider absorption range of visible light, a narrower band gap, a higher transmission and separation efficiency of photo-generated carriers (electrons/holes), and a better interface contact with the photocatalytic reaction solution. The catalyst containing thiophene-triazine (ThPy-CPP) has an efficient photocatalytic hydrogen evolution rate of 21.65 and 16.69 mmol g-1h-1 under full-arc spectrum and visible light without the addition of a Pt co-catalyst, respectively, much better than the one containing phenyl-triazine (PhPy-CPP, only 5.73 and 3.48 mmol g-1h-1). This study provides a promising direction to design and construct highly efficient, cost-effective CPP-based photocatalysts, for exploring the application of noble metal-free catalysts in photocatalytic hydrogen evolution.
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Affiliation(s)
- Shengling Zhang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Fei Zhao
- College of Chemistry and Chemical Engineering, Taishan University, Taian 271000, China
| | - Ghulam Yasin
- Institute for Advanced Studies, Shenzhen University, Shenzhen 518060, China
| | - YunYun Dong
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Jinsheng Zhao
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China.
| | - Yue Guo
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Panagiotis Tsiakaras
- Laboratory of Alternative Energy Conversion Systems Department of Mechanical Engineering School of Engineering, University of Thessaly 1 Sekeri Str., Pedion Areos 38834 Greece.
| | - Jie Zhao
- Institute for Advanced Studies, Shenzhen University, Shenzhen 518060, China.
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11
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Shen Z, Yu Y, Zhao Z, Zhang S, Xu S, Yang S, Hu Y. Highly distributed amorphous copper catalyst for efficient ammonia electrosynthesis from nitrate. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130651. [PMID: 37056012 DOI: 10.1016/j.jhazmat.2022.130651] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/06/2022] [Accepted: 12/20/2022] [Indexed: 06/19/2023]
Abstract
Electroreduction of nitrate to ammonia, instead of N2, is beneficial toward pollution control and value-added chemical production. Metallic catalysts have been developed for enhancing ammonia evolution efficiency from nitrate based on the crystalline state of the catalyst. However, the development of amorphous metallic catalysts with more active sites is still unexplored. Herein, a highly distributed amorphous Cu catalyst exhibiting an outstanding ammonia yield rate of 1.42 mol h-1 g-1 and Faradaic efficiency of 95.7%, much superior to crystallized Cu, is demonstrated for nitrate-reduction to ammonia. Experimental and computational results reveal that amorphizing Cu increases the number of catalytic sites, enhances the NO3- adsorption strength with flat adsorption configurations, and facilitates the potential determining step of *NO protonation to *NHO. The amorphous Cu catalyst shows good electrochemical stability at - 0.3 V, while crystallization weakens the activity at a more negative potential. This study confirms the crystallinity-activity relationship of amorphous catalysts and unveils their potential-limited electrochemical stability.
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Affiliation(s)
- Zhen Shen
- Engineering Research Center for Eco-Dying & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Provincial Engineering Research Center for Green and Low-carbon Dyeing & Finishing, Zhejiang Sci-Tech University, Hangzhou 310018, China; School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yingsong Yu
- Engineering Research Center for Eco-Dying & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Provincial Engineering Research Center for Green and Low-carbon Dyeing & Finishing, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhiwei Zhao
- Engineering Research Center for Eco-Dying & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Provincial Engineering Research Center for Green and Low-carbon Dyeing & Finishing, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shangkun Zhang
- Engineering Research Center for Eco-Dying & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Provincial Engineering Research Center for Green and Low-carbon Dyeing & Finishing, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shilin Xu
- Engineering Research Center for Eco-Dying & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Provincial Engineering Research Center for Green and Low-carbon Dyeing & Finishing, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shiyu Yang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Yi Hu
- Engineering Research Center for Eco-Dying & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Provincial Engineering Research Center for Green and Low-carbon Dyeing & Finishing, Zhejiang Sci-Tech University, Hangzhou 310018, China; Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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12
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Zhao J, Lu Y, Wu D, Qin Y, Xie Y, Guo Y, Raza W, Luo G, Asim Mushtaq M, Wu Y, Mu X, Ling Y, Ilyas T, Ul Hassan Q, Gao C. Regulating divalent metal species in aluminum-based layered double hydroxides to selectively promote photocatalytic CO production from CO2. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Novel 2D/2D BiOBr/Zn(OH)2 photocatalysts for efficient photoreduction CO2. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Ultrafast synthesizing nanoflower-like composites of metal carbides and metal oxyhydroxides towards high-performance supercapacitors. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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