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Huang Y, Liu B, Yang Y, Xiao H, Han T, Jiang H, Li J, Zhou Y, Ke G, He H. BiVO 4 Film Coupling with CoAl 2O 4 Nanoparticles for Photoelectrochemical Water Splitting Utilizing Broad Solar Spectrum through p-n Heterojunction, Photothermal, and Cocatalytic Synergism. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:18670-18682. [PMID: 39163637 DOI: 10.1021/acs.langmuir.4c02294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2024]
Abstract
Water oxidation is an endothermic and kinetics-sluggish reaction; the research of photoanodes with photothermal and cocatalytic properties is of great significance. Herein, BiVO4/CoAl2O4 film photoanodes were studied for solar water splitting through coupling spinel p-type CoAl2O4 nanoparticles on n-type BiVO4 films. Compared to the BiVO4 photoanode, better performance was observed on the BiVO4/CoAl2O4 photoanode during water oxidation. A photocurrent of 3.47 mA/cm2 was produced on the BiVO4/CoAl2O4 photoanode at 1.23 V vs RHE, which is two-fold to the BiVO4 photoanode (1.70 mA/cm2). Additionally, the BiVO4/CoAl2O4 photoanodes showed an acceptable stability for water oxidation. The BiVO4/CoAl2O4 photoanode being of higher water oxidation performance could be attributed to the presence of p-n heterojunction, cocatalytic, and photothermal effects. In specific, under the excitation of λ < 520 nm light, the holes produced in/on BiVO4 can be transferred to CoAl2O4 owing to the p-n heterojunctions of BiVO4/CoAl2O4. Meanwhile, the temperature on the BiVO4/CoAl2O4 photoanode rises quickly up to ∼53 °C under AM 1.5 G irradiation due to the photothermal property of CoAl2O4 through capturing the 520 < λ < 720 nm light. The temperature rising on the BiVO4/CoAl2O4 photoanode improves the cocatalytic activity of CoAl2O4 and modifies the wettability of BiVO4/CoAl2O4 for effective water oxidation.
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Affiliation(s)
- Yujie Huang
- College of Materials and New Energy, Chongqing University of Science and Technology. Chongqing 401331, China
| | - Binyao Liu
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
| | - Yiwen Yang
- College of Materials and New Energy, Chongqing University of Science and Technology. Chongqing 401331, China
| | - Hao Xiao
- College of Materials and New Energy, Chongqing University of Science and Technology. Chongqing 401331, China
| | - Tao Han
- College of Materials and New Energy, Chongqing University of Science and Technology. Chongqing 401331, China
| | - Hanmei Jiang
- College of Materials and New Energy, Chongqing University of Science and Technology. Chongqing 401331, China
| | - Jiahe Li
- College of Materials and New Energy, Chongqing University of Science and Technology. Chongqing 401331, China
| | - Yong Zhou
- Ecomaterials and Renewable Energy Research Center, School of Physics, Nanjing University, Nanjing 211102, China
| | - Gaili Ke
- College of Materials and New Energy, Chongqing University of Science and Technology. Chongqing 401331, China
| | - Huichao He
- College of Materials and New Energy, Chongqing University of Science and Technology. Chongqing 401331, China
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Fan Z, Cao C, Yang X, Yuan W, Qin F, Hu Y, Sun X, Liu G, Tian Y, Xu L. Interfacial Electronic Interactions Promoted Activation for Nitrate Electroreduction to Ammonia over Ag-Modified Co 3O 4. Angew Chem Int Ed Engl 2024:e202410356. [PMID: 39107253 DOI: 10.1002/anie.202410356] [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: 06/01/2024] [Revised: 07/11/2024] [Accepted: 08/05/2024] [Indexed: 08/09/2024]
Abstract
Electrocatalytic nitrate (NO3 -) reduction to ammonia (NRA) offers a promising pathway for ammonia synthesis. The interfacial electronic interactions (IEIs) can regulate the physicochemical capabilities of catalysts in electrochemical applications, while the impact of IEIs on electrocatalytic NRA remains largely unexplored in current literature. In this study, the high-efficiency electrode Ag-modified Co3O4 (Ag1.5Co/CC) is prepared for NRA in neutral media, exhibiting an impressive nitrate conversion rate of 96.86 %, ammonia Faradaic efficiency of 96.11 %, and ammonia selectivity of ~100 %. Notably, the intrinsic activity of Ag1.5Co/CC is ~81 times that of Ag nanoparticles (Ag/CC). Multiple characterizations and theoretical computations confirm the presence of IEIs between Ag and Co3O4, which stabilize the CoO6 octahedrons within Co3O4 and significantly promote the adsorption of reactants (NO3 -) as well as intermediates (NO2 - and NO), while suppressing the Heyrovsky step, thereby improving nitrate electroreduction efficiency. Furthermore, our findings reveal a synergistic effect between different active sites that enables tandem catalysis for NRA: NO3 - reduction to NO2 - predominantly occurs at Ag sites while NO2 - tends to hydrogenate to ammonia at Co sites. This study offers valuable insights for the development of high-performance NRA electrocatalysts.
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Affiliation(s)
- Zhenhai Fan
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Chunmei Cao
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Xingchuan Yang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Wenchuang Yuan
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Feiyang Qin
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Yating Hu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Xiaobo Sun
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Guoji Liu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Yun Tian
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Li Xu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
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Zhang H, Wang H, Cao X, Chen M, Liu Y, Zhou Y, Huang M, Xia L, Wang Y, Li T, Zheng D, Luo Y, Sun S, Zhao X, Sun X. Unveiling Cutting-Edge Developments in Electrocatalytic Nitrate-to-Ammonia Conversion. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312746. [PMID: 38198832 DOI: 10.1002/adma.202312746] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/08/2024] [Indexed: 01/12/2024]
Abstract
The excessive enrichment of nitrate in the environment can be converted into ammonia (NH3) through electrochemical processes, offering significant implications for modern agriculture and the potential to reduce the burden of the Haber-Bosch (HB) process while achieving environmentally friendly NH3 production. Emerging research on electrocatalytic nitrate reduction (eNitRR) to NH3 has gained considerable momentum in recent years for efficient NH3 synthesis. However, existing reviews on nitrate reduction have primarily focused on limited aspects, often lacking a comprehensive summary of catalysts, reaction systems, reaction mechanisms, and detection methods employed in nitrate reduction. This review aims to provide a timely and comprehensive analysis of the eNitRR field by integrating existing research progress and identifying current challenges. This review offers a comprehensive overview of the research progress achieved using various materials in electrochemical nitrate reduction, elucidates the underlying theoretical mechanism behind eNitRR, and discusses effective strategies based on numerous case studies to enhance the electrochemical reduction from NO3 - to NH3. Finally, this review discusses challenges and development prospects in the eNitRR field with an aim to guide design and development of large-scale sustainable nitrate reduction electrocatalysts.
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Affiliation(s)
- Haoran Zhang
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Haijian Wang
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Xiqian Cao
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Mengshan Chen
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Yuelong Liu
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, Yunnan, 650092, China
| | - Yingtang Zhou
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Ming Huang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
| | - Lu Xia
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, 08860, Spain
| | - 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
| | - 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
| | - Shengjun Sun
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong, 250014, China
| | - Xue Zhao
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, Yunnan, 650092, 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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