1
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Zhang L, Wang R, Liang Li G, Niu H, Bai Y, Jiao T, Zhang X, Liu R, Streb C, Yuan M, Zhang G. Boosting electrocatalytic ammonia synthesis from nitrate by asymmetric chemical potential activated interfacial electric fields. J Colloid Interface Sci 2024; 676:636-646. [PMID: 39053411 DOI: 10.1016/j.jcis.2024.07.164] [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: 06/19/2024] [Revised: 07/15/2024] [Accepted: 07/20/2024] [Indexed: 07/27/2024]
Abstract
The electrocatalytic nitrate reduction reaction (NO3- RR) has immense potential to alleviate the problem of groundwater pollution and may also become a key route for the environmentally benign production of ammonia (NH3) products. Here, the unique effects of interfacial electric fields arising from asymmetric chemical potentials and local defects were integrated into the binary Bi2S3-Bi2O3 sublattices for enhancing electrocatalytic nitrate reduction reactions. The obtained binary system showed a superior Faraday efficiency (FE) for ammonia production of 94 % and an NH3 yield rate of 89.83 mg gcat-1h-1 at -0.4 V vs. RHE. Systematic experimental and computational results confirmed that the concerted interplay between interfacial electric fields and local defects not only promoted the accumulation and adsorption of NO3-, but also contributed to the destabilization of *NO and the subsequent deoxygenation hydrogenation reaction. This work will stimulate future designs of heterostructured catalysts for efficient electrocatalytic nitrate reduction reactions.
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Affiliation(s)
- Ling Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China; Center of Materials Science and Optoelectronics Engineering, Chinese Academy of Sciences, Beijing 100049, PR China; CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Runzhi Wang
- Center of Materials Science and Optoelectronics Engineering, Chinese Academy of Sciences, Beijing 100049, PR China; CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Guo Liang Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Hexu Niu
- State Key Laboratory of Solidification Processing and School of Materials Science and Engineering, Queen Mary University of London Engineering School, Northwestern Polytechnical University Xi'an, 710072, PR China
| | - Yiling Bai
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China; National Energy Center for Coal to Liquids, Synfuels China Technology C. Ltd, Beijing 101400, PR China
| | - Tianao Jiao
- State Key Laboratory of Solidification Processing and School of Materials Science and Engineering, Queen Mary University of London Engineering School, Northwestern Polytechnical University Xi'an, 710072, PR China
| | - Xuehua Zhang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Rongji Liu
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Carsten Streb
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Menglei Yuan
- State Key Laboratory of Solidification Processing and School of Materials Science and Engineering, Queen Mary University of London Engineering School, Northwestern Polytechnical University Xi'an, 710072, PR China.
| | - Guangjin Zhang
- Center of Materials Science and Optoelectronics Engineering, Chinese Academy of Sciences, Beijing 100049, PR China; CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; Key Laboratory of Green and High-value Utilization of Salt Lake Resources, Chinese Academy of Sciences, Beijing 100190, PR China.
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2
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Zhao H, Duan Y, Cheng X, Fan C, Wang YQ. Fe 2O 3/ZnO heterojunction for efficient electrochemical nitrate reduction to ammonia. Dalton Trans 2024; 53:15674-15680. [PMID: 39248282 DOI: 10.1039/d4dt01578a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
Electrochemical nitrate reduction to ammonia (ENO3RR) has attracted great attention owing to its characteristics of treating wastewater while producing high value-added ammonia. In this study, we successfully prepared a heterojunction electrocatalyst Fe2O3/ZnO consisting of Fe2O3 nanosheets and ZnO nanoparticles, where the construction of the Fe2O3/ZnO heterojunction not only increased the exposure of the active sites of the catalyst, accelerated the interfacial electron transfer, and improved the conductivity of the catalyst but also optimized its overall electronic structure. Thus, Fe2O3/ZnO demonstrated a high Faraday efficiency of 97.4% and an ammonia yield of 6327.2 μg h-1 cm-2 at -1.0 V (vs. RHE) in 0.1 M KNO3 and 0.1 M PBS. DFT calculations also confirmed that the constructed Fe2O3/ZnO heterojunction effectively decreased the reaction energy barrier of *NO → *NHO and accelerated the reaction kinetics, which is favourable for ENO3RR. This study provides a new and facile design strategy of catalysts for electrochemical nitrate reduction to ammonia.
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Affiliation(s)
- Huilin Zhao
- Inner Mongolia Key Laboratory of Rare Earth Catalysis, College of Chemistry and Chemical Engineering, Inner Mongolia University, Huhhot, 010021, China.
| | - Yun Duan
- Inner Mongolia Key Laboratory of Rare Earth Catalysis, College of Chemistry and Chemical Engineering, Inner Mongolia University, Huhhot, 010021, China.
| | - Xuetao Cheng
- Inner Mongolia Key Laboratory of Rare Earth Catalysis, College of Chemistry and Chemical Engineering, Inner Mongolia University, Huhhot, 010021, China.
| | - Chao Fan
- Inner Mongolia Key Laboratory of Rare Earth Catalysis, College of Chemistry and Chemical Engineering, Inner Mongolia University, Huhhot, 010021, China.
| | - Yan-Qin Wang
- Inner Mongolia Key Laboratory of Rare Earth Catalysis, College of Chemistry and Chemical Engineering, Inner Mongolia University, Huhhot, 010021, China.
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3
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Murphy E, Sun B, Rüscher M, Liu Y, Zang W, Guo S, Chen YH, Hejral U, Huang Y, Ly A, Zenyuk IV, Pan X, Timoshenko J, Cuenya BR, Spoerke ED, Atanassov P. Synergizing Fe 2O 3 Nanoparticles on Single Atom Fe-N-C for Nitrate Reduction to Ammonia at Industrial Current Densities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401133. [PMID: 38619914 DOI: 10.1002/adma.202401133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/22/2024] [Indexed: 04/17/2024]
Abstract
The electrochemical reduction of nitrates (NO3 -) enables a pathway for the carbon neutral synthesis of ammonia (NH3), via the nitrate reduction reaction (NO3RR), which has been demonstrated at high selectivity. However, to make NH3 synthesis cost-competitive with current technologies, high NH3 partial current densities (jNH3) must be achieved to reduce the levelized cost of NH3. Here, the high NO3RR activity of Fe-based materials is leveraged to synthesize a novel active particle-active support system with Fe2O3 nanoparticles supported on atomically dispersed Fe-N-C. The optimized 3×Fe2O3/Fe-N-C catalyst demonstrates an ultrahigh NO3RR activity, reaching a maximum jNH3 of 1.95 A cm-2 at a Faradaic efficiency (FE) for NH3 of 100% and an NH3 yield rate over 9 mmol hr-1 cm-2. Operando XANES and post-mortem XPS reveal the importance of a pre-reduction activation step, reducing the surface Fe2O3 (Fe3+) to highly active Fe0 sites, which are maintained during electrolysis. Durability studies demonstrate the robustness of both the Fe2O3 particles and Fe-Nx sites at highly cathodic potentials, maintaining a current of -1.3 A cm-2 over 24 hours. This work exhibits an effective and durable active particle-active support system enhancing the performance of the NO3RR, enabling industrially relevant current densities and near 100% selectivity.
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Affiliation(s)
- Eamonn Murphy
- Department of Chemical and Biomolecular Engineering, National Fuel Cell Research Center, University of California, Irvine, CA, 92697, USA
| | - Baiyu Sun
- Department of Chemical and Biomolecular Engineering, National Fuel Cell Research Center, University of California, Irvine, CA, 92697, USA
| | - Martina Rüscher
- Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Yuanchao Liu
- Department of Chemical and Biomolecular Engineering, National Fuel Cell Research Center, University of California, Irvine, CA, 92697, USA
| | - Wenjie Zang
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Shengyuan Guo
- Department of Chemical and Biomolecular Engineering, National Fuel Cell Research Center, University of California, Irvine, CA, 92697, USA
| | - Yu-Han Chen
- Department of Chemical and Biomolecular Engineering, National Fuel Cell Research Center, University of California, Irvine, CA, 92697, USA
| | - Uta Hejral
- Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Ying Huang
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Alvin Ly
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Iryna V Zenyuk
- Department of Chemical and Biomolecular Engineering, National Fuel Cell Research Center, University of California, Irvine, CA, 92697, USA
| | - Xiaoqing Pan
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Janis Timoshenko
- Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Beatriz Roldán Cuenya
- Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Erik D Spoerke
- Sandia National Laboratories, Energy Storage Technologies & Systems, Albuquerque, NM, 87185, USA
| | - Plamen Atanassov
- Department of Chemical and Biomolecular Engineering, National Fuel Cell Research Center, University of California, Irvine, CA, 92697, USA
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4
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Jiang Y, Liu S, Cheng Q, He Y, Huan Y, Liu J, Zhou X, Wang M, Yan C, Qian T. Built-In Positive Valence Space Shifting the Chemical Equilibrium Forward for Nitrate Reduction to Ammonia. Inorg Chem 2024; 63:12146-12155. [PMID: 38946339 DOI: 10.1021/acs.inorgchem.4c01264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The electrochemical conversion of nitrate pollutants into value-added ammonia (NH3) is an appealing alternative synthetic route for sustainable NH3 production. However, the development of the electrocatalytic nitrate-to-ammonia reduction reaction (NO3RR) has been hampered by unruly reactants and products at the interface and the accompanied sluggish kinetic rate. In this work, a built-in positive valence space is successfully constructed over FeCu nanocrystals to rationally regulate interfacial component concentrations and positively shift the chemical equilibrium. With positive valence Cu optimizing the active surface, the space between the stern and shear layers becomes positive, which is able to continuously attract the negatively charged NO3- reactant and repulse the positively charged NH4+ product even under high current density, thus significantly boosting the NO3RR kinetics. The system with a built-in positive valence space affords an ampere-level NO3RR performance with the highest NH3 yield rate of 150.27 mg h-1 mg-1 at -1.3 V versus RHE with an outstanding NH3 current density of 189.53 mA cm-2, as well as a superior Faradaic efficiency (FE) of 97.26% at -1.2 V versus RHE. The strategy proposed here underscores the importance of interfacial concentration regulation and can find wider applicability in other electrochemical syntheses suffering from sluggish kinetics.
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Affiliation(s)
- Yuzhuo Jiang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Sisi Liu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Qiyang Cheng
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou 215006, China
| | - Yanzheng He
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou 215006, China
| | - Yunfei Huan
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Xi Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Mengfan Wang
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou 215006, China
| | - Chenglin Yan
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou 215006, China
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
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5
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Wang G, Wang C, Tian X, Li Q, Liu S, Zhao X, Waterhouse GIN, Zhao X, Lv X, Xu J. Facile Construction of CuFe-Based Metal Phosphides for Synergistic NO x -Reduction to NH 3 and Zn-Nitrite Batteries in Electrochemical Cell. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311439. [PMID: 38161250 DOI: 10.1002/smll.202311439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Indexed: 01/03/2024]
Abstract
The electrocatalytic nitrite/nitrate reduction reaction (eNO2RR/eNO3RR) offer a promising route for green ammonia production. The development of low cost, highly selective and long-lasting electrocatalysts for eNO2RR/eNO3RR is challenging. Herein, a method is presented for constructing Cu3P-Fe2P heterostructures on iron foam (CuFe-P/IF) that facilitates the effective conversion of NO2 - and NO3 - to NH3. At -0.1 and -0.2 V versus RHE (reversible hydrogen electrode), CuFe-P/IF achieves a Faradaic efficiency (FE) for NH3 production of 98.36% for eNO2RR and 72% for eNO3RR, while also demonstrating considerable stability across numerous cycles. The superior performance of CuFe-P/IF catalyst is due tothe rich Cu3P-Fe2P heterstuctures. Density functional theory calculations have shed light on the distinct roles that Cu3P and Fe2P play at different stages of the eNO2RR/eNO3RR processes. Fe2P is notably active in the early stages, engaging in the capture of NO2 -/NO3 -, O─H formation, and N─OH scission. Conversely, Cu3P becomes more dominant in the subsequent steps, which involve the formation of N─H bonds, elimination of OH* species, and desorption of the final products. Finally, a primary Zn-NO2 - battery is assembled using CuFe-P/IF as the cathode catalyst, which exhibits a power density of 4.34 mW cm-2 and an impressive NH3 FE of 96.59%.
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Affiliation(s)
- Guoqiang Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Chuanjun Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong, 271018, China
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Tai'an, Shandong, 271018, China
| | - Xinxin Tian
- Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, 030006, China
| | - Qiang Li
- Catalysis Center for Energy Innovation, University of Delaware, 221 Academy St., Newark, DE, 19716, USA
| | - Shenjie Liu
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Xiuying Zhao
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | | | - Xin Zhao
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Xiaoqing Lv
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Jing Xu
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, Shandong, 271018, China
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Tai'an, Shandong, 271018, China
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6
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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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7
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Ren JT, Chen L, Wang HY, Tian W, Wang L, Sun M, Feng Y, Zhai SX, Yuan ZY. Self-Powered Hydrogen Production with Improved Energy Efficiency via Polysulfides Redox. ACS NANO 2023; 17:25707-25720. [PMID: 38047808 DOI: 10.1021/acsnano.3c10867] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
In the pursuit of efficient solar-driven electrocatalytic water splitting for hydrogen production, the intrinsic challenges posed by the sluggish kinetics of anodic oxygen evolution and intermittent sunlight have prompted the need for innovative energy systems. Here, we introduce an approach by coupling the polysulfides oxidation reaction with the hydrogen evolution reaction for energy-saving H2 production, which could be powered by an aqueous zinc-polysulfides battery to construct a self-powered energy system. This unusual hybrid water electrolyzer achieves 300 mA cm-2 at a low cell voltage of 1.14 V, saving electricity consumption by 100.4% from 5.47 to 2.73 kWh per m3 H2 compared to traditional overall water splitting. Benefiting from the favorable reaction kinetics of polysulfides oxidation/reduction, the aqueous zinc-polysulfides battery exhibits an energy efficiency of approximately 89% at 1.0 mA cm-2. Specially, the zinc-polysulfide battery effectively stores intermittent solar energy as chemical energy during light reaction by solar cells. Under an unassisted light reaction, the batteries could release energy to drive H2 production through a hybrid water electrolyzer for uninterrupted hydrogen production. Therefore, the aim of simultaneously generating H2 and eliminating the restrictions of intermittent sunlight is realized by combining the merits of polysulfides redox, an aqueous metal-polysulfide battery, and solar cells. We believe that this concept and utilization of polysulfides redox will inspire further fascinating attempts for the development of sustainable energy via electrocatalytic reactions.
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Affiliation(s)
- Jin-Tao Ren
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, People's Republic of China
| | - Lei Chen
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, People's Republic of China
| | - Hao-Yu Wang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, People's Republic of China
| | - Wenwen Tian
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, People's Republic of China
| | - Lei Wang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, People's Republic of China
| | - Minglei Sun
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, People's Republic of China
| | - Yi Feng
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, People's Republic of China
| | - Si-Xiang Zhai
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, People's Republic of China
| | - Zhong-Yong Yuan
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300350, People's Republic of China
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8
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Min X, Liu B. Microenvironment Engineering to Promote Selective Ammonia Electrosynthesis from Nitrate over a PdCu Hollow Catalyst. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300794. [PMID: 37010036 DOI: 10.1002/smll.202300794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/10/2023] [Indexed: 06/19/2023]
Abstract
The electrosynthesis of recyclable ammonia (NH3 ) from nitrate under ambient conditions is of great importance but still full of challenges for practical application. Herein, an efficient catalyst design strategy is developed that can engineer the surface microenvironment of a PdCu hollow (PdCu-H) catalyst to confine the intermediates and thus promote selective NH3 electrosynthesis from nitrate. The hollow nanoparticles are synthesized by in situ reduction and nucleation of PdCu nanocrystals along a self-assembled micelle of a well-designed surfactant. The PdCu-H catalyst shows a structure-dependent selectivity toward the NH3 product during the nitrate reduction reaction (NO3 - RR) electrocatalysis, enabling a high NH3 Faradaic efficiency of 87.3% and a remarkable NH3 yield rate of 0.551 mmol h-1 mg-1 at -0.30 V (vs reversible hydrogen electrode). Moreover, this PdCu-H catalyst delivers high electrochemical performance in the rechargeable zinc-NO3 - battery. These results provide a promising design strategy to tune catalytic selectivity for efficient electrosynthesis of renewable NH3 and feedstocks.
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Affiliation(s)
- Xiaowen Min
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Ben Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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9
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Kim H, Jan A, Kwon DH, Ji HI, Yoon KJ, Lee JH, Jun Y, Son JW, Yang S. Exsolution of Ru Nanoparticles on BaCe 0.9 Y 0.1 O 3-δ Modifying Geometry and Electronic Structure of Ru for Ammonia Synthesis Reaction Under Mild Conditions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205424. [PMID: 36464649 DOI: 10.1002/smll.202205424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Green ammonia is an efficient, carbon-free energy carrier and storage medium. The ammonia synthesis using green hydrogen requires an active catalyst that operates under mild conditions. The catalytic activity can be promoted by controlling the geometry and electronic structure of the active species. An exsolution process is implemented to improve catalytic activity by modulating the geometry and electronic structure of Ru. Ru nanoparticles exsolved on a BaCe0.9 Y0.1 O3-δ support exhibit uniform size distribution, 5.03 ± 0.91 nm, and exhibited one of the highest activities, 387.31 mmolNH3 gRu -1 h-1 (0.1 MPa and 450 °C). The role of the exsolution and BaCe0.9 Y0.1 O3-δ support is studied by comparing the catalyst with control samples and in-depth characterizations. The optimal nanoparticle size is maintained during the reaction, as the Ru nanoparticles prepared by exsolution are well-anchored to the support with in-plane epitaxy. The electronic structure of Ru is modified by unexpected in situ Ba promoter accumulation around the base of the Ru nanoparticles.
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Affiliation(s)
- Hayoung Kim
- Energy Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Graduate School of Energy and Environment (KU-KIST Green School), Korea University, Seoul, 02841, Republic of Korea
| | - Asif Jan
- Energy Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Nanomaterials Science and Engineering, Korea University of Science and Technology (UST), KIST Campus, Seoul, 02792, Republic of Korea
| | - Deok-Hwang Kwon
- Energy Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Ho-Il Ji
- Energy Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Nanomaterials Science and Engineering, Korea University of Science and Technology (UST), KIST Campus, Seoul, 02792, Republic of Korea
| | - Kyung Joong Yoon
- Energy Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Yonsei-KIST Convergence Research Institute, Seoul, 02792, Republic of Korea
| | - Jong-Ho Lee
- Energy Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Nanomaterials Science and Engineering, Korea University of Science and Technology (UST), KIST Campus, Seoul, 02792, Republic of Korea
| | - Yongseok Jun
- Graduate School of Energy and Environment (KU-KIST Green School), Korea University, Seoul, 02841, Republic of Korea
| | - Ji-Won Son
- Energy Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Graduate School of Energy and Environment (KU-KIST Green School), Korea University, Seoul, 02841, Republic of Korea
| | - Sungeun Yang
- Energy Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Nanomaterials Science and Engineering, Korea University of Science and Technology (UST), KIST Campus, Seoul, 02792, Republic of Korea
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