1
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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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2
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Santra S, Streibel V, Wagner LI, Cheng N, Ding P, Zhou G, Sirotti E, Kisslinger R, Rieth T, Zhang S, Sharp ID. Tuning Carbon Dioxide Reduction Reaction Selectivity of Bi Single-Atom Electrocatalysts with Controlled Coordination Environments. CHEMSUSCHEM 2024; 17:e202301452. [PMID: 38224562 DOI: 10.1002/cssc.202301452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/24/2023] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
Control over product selectivity of the electrocatalytic CO2 reduction reaction (CO2RR) is a crucial challenge for the sustainable production of carbon-based chemical feedstocks. In this regard, single-atom catalysts (SACs) are promising materials due to their tunable coordination environments, which could enable tailored catalytic activities and selectivities, as well as new insights into structure-activity relationships. However, direct evidence for selectivity control via systematic tuning of the SAC coordination environment is scarce. In this work, we have synthesized two differently coordinated Bi SACs anchored to the same host material (carbon black) and characterized their CO2RR activities and selectivities. We find that oxophilic, oxygen-coordinated Bi atoms produce HCOOH, while nitrogen-coordinated Bi atoms generate CO. Importantly, use of the same support material assured that alternation of the coordination environment is the dominant factor for controlling the CO2RR product selectivity. Overall, this work demonstrates the structure-activity relationship of Bi SACs, which can be utilized to establish control over CO2RR product distributions, and highlights the promise for engineering atomic coordination environments of SACs to tune reaction pathways.
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Affiliation(s)
- Saswati Santra
- Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany
- TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Verena Streibel
- Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany
- TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Laura I Wagner
- Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany
- TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Ningyan Cheng
- Max-Planck-Institut für Eisenforschung, Max-Planck-Straße 1, 40237, Düsseldorf, Germany
| | - Pan Ding
- Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany
- TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Guanda Zhou
- Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany
- TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Elise Sirotti
- Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany
- TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Ryan Kisslinger
- Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany
- TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Tim Rieth
- Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany
- TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
| | - Siyuan Zhang
- Max-Planck-Institut für Eisenforschung, Max-Planck-Straße 1, 40237, Düsseldorf, Germany
| | - Ian D Sharp
- Walter Schottky Institute, Technical University of Munich, 85748, Garching, Germany
- TUM School of Natural Sciences, Technical University of Munich, 85748, Garching, Germany
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3
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Zhang LN, Jia GA, Ma C, Jia MQ, Li TS, Ni LB, Diao GW. Polyoxometalate-Intercalated Tremella-Like CoNi-LDH Nanocomposites for Electrocatalytic Nitrite-Ammonia Conversion. Inorg Chem 2024; 63:6787-6797. [PMID: 38556762 DOI: 10.1021/acs.inorgchem.4c00130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
The electrocatalytic reduction of NO2- (NO2RR) holds promise as a sustainable pathway to both promoting the development of emerging NH3 economies and allowing the closing of the NOx loop. Highly efficient electrocatalysts that could facilitate this complex six-electron transfer process are urgently desired. Herein, tremella-like CoNi-LDH intercalated by cyclic polyoxometalate (POM) anion P8W48 (P8W48/CoNi-LDH) prepared by a simple two-step hydrothermal-exfoliation assembly method is proposed as an effective electrocatalyst for NO2- to NH3 conversion. The introduction of POM with excellent redox ability tremendously increased the electrocatalytic performance of CoNi-LDH in the NO2RR process, causing P8W48/CoNi-LDH to exhibit large NH3 yield of 0.369 mmol h-1 mgcat-1 and exceptionally high Faradic efficiency of 97.0% at -1.3 V vs the Ag/AgCl reference electrode in 0.1 M phosphate buffer saline (PBS, pH = 7) containing 0.1 M NO2-. Furthermore, P8W48/CoNi-LDH demonstrated excellent durability during cyclic electrolysis. This work provides a new reference for the application of POM-based nanocomposites in the electrochemical reduction of NO2- to obtain value-added NH3.
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Affiliation(s)
- Lu-Nan Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
| | - Guang-An Jia
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
| | - Cheng Ma
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
| | - Meng-Qi Jia
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
| | - Tang-Suo Li
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
| | - Lu-Bin Ni
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
| | - Guo-Wang Diao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
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4
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Fang L, Lu S, Wang S, Yang X, Song C, Yin F, Liu H. Defect engineering on electrocatalysts for sustainable nitrate reduction to ammonia: Fundamentals and regulations. Chemistry 2024; 30:e202303249. [PMID: 37997008 DOI: 10.1002/chem.202303249] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 11/25/2023]
Abstract
Electrocatalytic nitrate (NO3 -) reduction to ammonia (NH3) is a "two birds-one stone" method that targets remediation of NO3 --containing sewage and production of valuable NH3. The exploitation of advanced catalysts with high activity, selectivity, and durability is a key issue for the efficient catalytic performance. Among various strategies for catalyst design, defect engineering has gained increasing attention due to its ability to modulate the electronic properties of electrocatalysts and optimize the adsorption energy of reactive species, thereby enhancing the catalytic performance. Despite previous progress, there remains a lack of mechanistic insights into the regulation of catalyst defects for NO3 - reduction. Herein, this review presents insightful understanding of defect engineering for NO3 - reduction, covering its background, definition, classification, construction, and underlying mechanisms. Moreover, the relationships between regulation of catalyst defects and their catalytic activities are illustrated by investigating the properties of electrocatalysts through the analysis of electronic band structure, charge density distribution, and controllable adsorption energy. Furthermore, challenges and perspectives for future development of defects in NO3RR are also discussed, which can help researchers to better understand the defect engineering in catalysts, and also inspire scientists entering into this promising field.
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Affiliation(s)
- Ling Fang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Shun Lu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Sha Wang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xiaohui Yang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Cheng Song
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Fengjun Yin
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Hong Liu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
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5
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Liu L, Chen T, Chen Z. Understanding the Dynamic Aggregation in Single-Atom Catalysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308046. [PMID: 38287886 PMCID: PMC10987127 DOI: 10.1002/advs.202308046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/22/2023] [Indexed: 01/31/2024]
Abstract
The dynamic response of single-atom catalysts to a reactive environment is an increasingly significant topic for understanding the reaction mechanism at the molecular level. In particular, single atoms may experience dynamic aggregation into clusters or nanoparticles driven by thermodynamic or kinetic factors. Herein, the inherent mechanistic nuances that determine the dynamic profile during the reaction will be uncovered, including the intrinsic stability and site-migration barrier of single atoms, external stimuli (temperature, voltage, and adsorbates), and the influence of catalyst support. Such dynamic aggregation can be beneficial or deleterious on the catalytic performance depending on the optimal initial state. Those examples will be highlighted where in situ formed clusters, rather than single atoms, serve as catalytically active sites for improved catalytic performance. This is followed by the introduction of operando techniques to understand the structural evolution. Finally, the emerging strategies via confinement and defect-engineering to regulate dynamic aggregation will be briefly discussed.
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Affiliation(s)
- Laihao Liu
- School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdong518172China
| | - Tiankai Chen
- School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdong518172China
| | - Zhongxin Chen
- School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdong518172China
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6
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Xiong Y, Wang Y, Zhou J, Liu F, Hao F, Fan Z. Electrochemical Nitrate Reduction: Ammonia Synthesis and the Beyond. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2304021. [PMID: 37294062 DOI: 10.1002/adma.202304021] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/29/2023] [Indexed: 06/10/2023]
Abstract
Natural nitrogen cycle has been severely disrupted by anthropogenic activities. The overuse of N-containing fertilizers induces the increase of nitrate level in surface and ground waters, and substantial emission of nitrogen oxides causes heavy air pollution. Nitrogen gas, as the main component of air, has been used for mass ammonia production for over a century, providing enough nutrition for agriculture to support world population increase. In the last decade, researchers have made great efforts to develop ammonia processes under ambient conditions to combat the intensive energy consumption and high carbon emission associated with the Haber-Bosch process. Among different techniques, electrochemical nitrate reduction reaction (NO3RR) can achieve nitrate removal and ammonia generation simultaneously using renewable electricity as the power, and there is an exponential growth of studies in this research direction. Here, a timely and comprehensive review on the important progresses of electrochemical NO3RR, covering the rational design of electrocatalysts, emerging CN coupling reactions, and advanced energy conversion and storage systems is provided. Moreover, future perspectives are proposed to accelerate the industrialized NH3 production and green synthesis of chemicals, leading to a sustainable nitrogen cycle via prosperous N-based electrochemistry.
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Affiliation(s)
- Yuecheng Xiong
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Yunhao Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Jingwen Zhou
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Fu Liu
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Fengkun Hao
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Zhanxi Fan
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
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7
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Zhou J, Zhu Y, Wen K, Pan F, Ma H, Niu J, Wang C, Zhao J. Efficient and Selective Electrochemical Nitrate Reduction to N 2 Using a Flow-Through Zero-Gap Electrochemical Reactor with a Reconstructed Cu(OH) 2 Cathode: Insights into the Importance of Inter-Electrode Distance. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:4824-4836. [PMID: 38408018 DOI: 10.1021/acs.est.3c10936] [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: 02/28/2024]
Abstract
Electrochemically converting nitrate, a widely distributed nitrogen contaminant, into harmless N2 is a feasible and environmentally friendly route to close the anthropogenic nitrogen-based cycle. However, it is currently hindered by sluggish kinetics and low N2 selectivity, as well as scarce attention to reactor configuration. Here, we report a flow-through zero-gap electrochemical reactor that shows a high performance of nitrate reduction with 100% conversion and 80.36% selectivity of desired N2 in the chlorine-free system at 100 mg-N·L-1 NO3- while maintaining a rapid reduction kinetics of 0.07676 min-1. More importantly, the mass transport and current utilization efficiency are significantly improved by shortening the inter-electrode distance, especially in the zero-gap electrocatalytic system where the current efficiency reached 50.15% at 5 mA·cm-2. Detailed characterizations demonstrated that during the electroreduction process, partial Cu(OH)2 on the cathode surface was reconstructed into stable Cu/Cu2O as the active phase for efficient nitrate reduction. In situ characterizations revealed that the highly selective *NO to *N conversion and the N-N coupling step played crucial roles during the selective reduction of NO3- to N2 in the zero-gap electrochemical system. In addition, theoretical calculations demonstrated that improving the key intermediate *N coverage could effectively facilitate the N-N coupling step, thereby promoting N2 selectivity. Moreover, the environmental and economic benefits and long-term stability shown by the treatment of real nitrate-containing wastewater make our proposed electrocatalytic system more attractive for practical applications.
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Affiliation(s)
- Jianjun Zhou
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, China
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, China
| | - Yunqing Zhu
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, China
| | - Kaiyue Wen
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, China
| | - Fan Pan
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, China
| | - Hongrui Ma
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, China
| | - Junfeng Niu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Chuanyi Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, China
| | - Jincai Zhao
- Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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8
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Li H, Li P, Guo Y, Jin Z. Electrochemical Probing the Site Reactivity in Iron Single-Atom Catalysts for Electrocatalytic Nitrate Reduction to Ammonia. Anal Chem 2024; 96:997-1002. [PMID: 38176015 DOI: 10.1021/acs.analchem.3c05095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Single-atom catalysts (SACs), specifically iron single atoms dispersed on nitrogen-doped carbon (Fe-NC), have shown promising potential in the electrocatalytic reduction of nitrate to ammonia (NitRR), but there is a lack of understanding of their intrinsic activity. The conventional measurements often overlook the intrinsic performance of SACs, leading to significant underestimation. This study presents an in situ electrochemical probing protocol, using two poisoning molecules (SCN- and NO2-), to characterize the reactivity of Fe sites in Fe-NC SACs for NitRR. The technique aids in quantifying the yield rate of ammonia on Fe sites and the active site number. The findings reveal the intrinsic turnover frequency (TOF) based on the number and ammonia yield rate of Fe sites, challenging the current understanding of SACs' inherent performances. This unique approach holds considerable potential for determining the intrinsic activity of other SACs in complex reactions, opening new avenues for the exploration of electrocatalytic processes.
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Affiliation(s)
- Hongmei Li
- College of Chemistry, Sichuan University, Chengdu 610065, P. R. China
| | - Panpan Li
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Yong Guo
- College of Chemistry, Sichuan University, Chengdu 610065, P. R. China
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
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9
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Lakshmanan K, Huang WH, Chala SA, Chang CY, Saravanan ST, Taklu BW, Moges EA, Nikodimos Y, Dandena BD, Yang SC, Lee JF, Huang PY, Lee YC, Tsai MC, Su WN, Hwang BJ. Generating Multi-Carbon Products by Electrochemical CO 2 Reduction via Catalytically Harmonious Ni/Cu Dual Active Sites. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2307180. [PMID: 38054789 DOI: 10.1002/smll.202307180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/11/2023] [Indexed: 12/07/2023]
Abstract
Despite the unique advantages of single-atom catalysts, molecular dual-active sites facilitate the C-C coupling reaction for C2 products toward the CO2 reduction reaction (CO2 RR). The Ni/Cu proximal dual-active site catalyst (Ni/Cu-PASC) is developed, which is a harmonic catalyst with dual-active sites, by simply mixing commercial Ni-phthalocyanine (Ni-Pc) and Cu-phthalocyanine (Cu-Pc) molecules physically. According to scanning transmission electron microscopy (STEM) and transmission electron microscopy (TEM) energy dispersive spectroscopy (EDS) data, Ni and Cu atoms are separated, creating dual-active sites for the CO2 RR. The Ni/Cu-PASC generates ethanol with an FE of 55%. Conversely, Ni-Pc and Cu-Pc have only detected single-carbon products like CO and HCOO- . In situ X-ray absorption spectroscopy (XAS) indicates that CO generation is caused by the stable Ni active site's balanced electronic state. The CO production from Ni-Pc consistently increased the CO concentration over Cu sites attributed to subsequent reduction reaction through a C-C coupling on nearby Cu. The CO bound (HCOO- ) peak, which can be found on Cu-Pc, vanishes on Ni/Cu-PASC, as shown by in situ fourier transformation infrared (FTIR). The characteristic intermediate of *CHO instead of HCOO- proves to be the prerequisite for multi-carbon products by electrochemical CO2 RR. The work demonstrates that the harmonic dual-active sites in Ni/Cu-PASC can be readily available by the cascading proximal active Ni- and Cu-Pc sites.
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Affiliation(s)
- Keseven Lakshmanan
- NanoElectrochemistry Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 106, Taiwan
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Soressa Abera Chala
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Chia-Yu Chang
- NanoElectrochemistry Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 106, Taiwan
| | - Sruthi Thiraviam Saravanan
- NanoElectrochemistry Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 106, Taiwan
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Bereket Woldegbreal Taklu
- NanoElectrochemistry Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 106, Taiwan
| | - Endalkachew Asefa Moges
- NanoElectrochemistry Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 106, Taiwan
| | - Yosef Nikodimos
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Berhanu Degagsa Dandena
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Sheng-Chiang Yang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Pei-Yu Huang
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Yao-Chang Lee
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Meng-Che Tsai
- NanoElectrochemistry Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 106, Taiwan
- Sustainable Electrochemical Energy Development Center, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Wei-Nien Su
- NanoElectrochemistry Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 106, Taiwan
- Sustainable Electrochemical Energy Development Center, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Bing Joe Hwang
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
- Sustainable Electrochemical Energy Development Center, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
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10
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Zhang R, Hong H, Liu X, Zhang S, Li C, Cui H, Wang Y, Liu J, Hou Y, Li P, Huang Z, Guo Y, Zhi C. Molecular Engineering of a Metal-Organic Polymer for Enhanced Electrochemical Nitrate-to-Ammonia Conversion and Zinc Nitrate Batteries. Angew Chem Int Ed Engl 2023; 62:e202309930. [PMID: 37828577 DOI: 10.1002/anie.202309930] [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: 07/12/2023] [Revised: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 10/14/2023]
Abstract
Metal-organic framework-based materials are promising single-site catalysts for electrocatalytic nitrate (NO3 - ) reduction to value-added ammonia (NH3 ) on account of well-defined structures and functional tunability but still lack a molecular-level understanding for designing the high-efficient catalysts. Here, we proposed a molecular engineering strategy to enhance electrochemical NO3 - -to-NH3 conversion by introducing the carbonyl groups into 1,2,4,5-tetraaminobenzene (BTA) based metal-organic polymer to precisely modulate the electronic state of metal centers. Due to the electron-withdrawing properties of the carbonyl group, metal centers can be converted to an electron-deficient state, fascinating the NO3 - adsorption and promoting continuous hydrogenation reactions to produce NH3 . Compared to CuBTA with a low NO3 - -to-NH3 conversion efficiency of 85.1 %, quinone group functionalization endows the resulting copper tetraminobenzoquinone (CuTABQ) distinguished performance with a much higher NH3 FE of 97.7 %. This molecular engineering strategy is also universal, as verified by the improved NO3 - -to-NH3 conversion performance on different metal centers, including Co and Ni. Furthermore, the assembled rechargeable Zn-NO3 - battery based on CuTABQ cathode can deliver a high power density of 12.3 mW cm-2 . This work provides advanced insights into the rational design of metal complex catalysts through the molecular-level regulation for NO3 - electroreduction to value-added NH3 .
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Affiliation(s)
- Rong Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Hu Hong
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Xinghui Liu
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Shaoce Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Chuan Li
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Huilin Cui
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Yanbo Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Jiahua Liu
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Yue Hou
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Pei Li
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Zhaodong Huang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), 999077, Shatin, NT, HKSAR, China
| | - Ying Guo
- College of Materials Science and Engineering, Shenzhen University, 518060, Shenzhen, Guangdong, China
| | - Chunyi Zhi
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Hong Kong Institute for Advanced Study, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), 999077, Shatin, NT, HKSAR, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- Centre for Functional Photonics, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
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11
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Hu Y, Liu J, Lee C, Luo W, Dong J, Liang Z, Chen M, Hu E, Zhang M, Debbie Soo XY, Zhu Q, Li F, Rawat RS, Ng MF, Zhong L, Han B, Geng D, Yan Q. Balanced NO x- and Proton Adsorption for Efficient Electrocatalytic NO x- to NH 3 Conversion. ACS NANO 2023. [PMID: 37979042 DOI: 10.1021/acsnano.3c06798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Electrocatalytic nitrate (NO3-)/nitrite (NO2-) reduction reaction (eNOx-RR) to ammonia under ambient conditions presents a green and promising alternative to the Haber-Bosch process. Practically available NOx- sources, such as wastewater or plasma-enabled nitrogen oxidation reaction (p-NOR), typically have low NOx- concentrations. Hence, electrocatalyst engineering is important for practical eNOx-RR to obtain both high NH3 Faradaic efficiency (FE) and high yield rate. Herein, we designed balanced NOx- and proton adsorption by properly introducing Cu sites into the Fe/Fe2O3 electrocatalyst. During the eNOx-RR process, the H adsorption is balanced, and the good NOx- affinity is maintained. As a consequence, the designed Cu-Fe/Fe2O3 catalyst exhibits promising performance, with an average NH3 FE of ∼98% and an average NH3 yield rate of 15.66 mg h-1 cm-2 under the low NO3- concentration (32.3 mM) of typical industrial wastewater at an applied potential of -0.6 V versus reversible hydrogen electrode (RHE). With low-power direct current p-NOR generated NOx- (23.5 mM) in KOH electrolyte, the Cu-Fe/Fe2O3 catalyst achieves an FE of ∼99% and a yield rate of 15.1 mg h-1 cm-2 for NH3 production at -0.5 V (vs RHE). The performance achieved in this study exceeds industrialization targets for NH3 production by exploiting two available low-concentration NOx- sources.
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Affiliation(s)
- Yue Hu
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Jiawei Liu
- Institute of Materials Research and Engineering, A*STAR, 138634, Singapore
| | - Carmen Lee
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Wenyu Luo
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Jinfeng Dong
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Zhishan Liang
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Mengxin Chen
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Erhai Hu
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Mingsheng Zhang
- Institute of Materials Research and Engineering, A*STAR, 138634, Singapore
| | | | - Qiang Zhu
- Institute of Materials Research and Engineering, A*STAR, 138634, Singapore
| | - Fengkun Li
- Natural Science and Science Education, National Institute of Education, Nanyang Technological University, 637616, Singapore
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China
| | - Rajdeep Singh Rawat
- Natural Science and Science Education, National Institute of Education, Nanyang Technological University, 637616, Singapore
| | - Man-Fai Ng
- Institute of High Performance Computing (IHPC), A*STAR, 138632, Singapore
| | - Lixiang Zhong
- School of Physics, Beijing Institute of Technology, Beijing 100081, China
| | - Bo Han
- SCARCE Laboratory, Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 637459, Singapore
| | - Dongsheng Geng
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Qingyu Yan
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
- Institute of Materials Research and Engineering, A*STAR, 138634, Singapore
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12
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Xiang T, Liang Y, Zeng Y, Deng J, Yuan J, Xiong W, Song B, Zhou C, Yang Y. Transition Metal Single-Atom Catalysts for the Electrocatalytic Nitrate Reduction: Mechanism, Synthesis, Characterization, Application, and Prospects. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303732. [PMID: 37300329 DOI: 10.1002/smll.202303732] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/30/2023] [Indexed: 06/12/2023]
Abstract
Excessive accumulation of nitrate in the environment will affect human health. To combat nitrate pollution, chemical, biological, and physical technologies have been developed recently. The researcher favors electrocatalytic reduction nitrate reaction (NO3 RR) because of the low post-treatment cost and simple treatment conditions. Single-atom catalysts (SACs) offer great activity, exceptional selectivity, and enhanced stability in the field of NO3 RR because of their high atomic usage and distinctive structural characteristics. Recently, efficient transition metal-based SACs (TM-SACs) have emerged as promising candidates for NO3 RR. However, the real active sites of TM-SACs applied to NO3 RR and the key factors controlling catalytic performance in the reaction process remain ambiguous. Further understanding of the catalytic mechanism of TM-SACs applied to NO3 RR is of practical significance for exploring the design of stable and efficient SACs. In this review, from experimental and theoretical studies, the reaction mechanism, rate-determining steps, and essential variables affecting activity and selectivity are examined. The performance of SACs in terms of NO3 RR, characterization, and synthesis is then discussed. In order to promote and comprehend NO3 RR on TM-SACs, the design of TM-SACs is finally highlighted, together with the current problems, their remedies, and the way forward.
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Affiliation(s)
- Tianyi Xiang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Yuntao Liang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Yuxi Zeng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Jie Deng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Jili Yuan
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Weiping Xiong
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Biao Song
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Chengyun Zhou
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
- Jiangxi Province Key Laboratory of Drinking Water Safety, Nanchang, Jiangxi Province, 330013, P. R. China
| | - Yang Yang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
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13
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Rigby K, Huang D, Leshchev D, Lim HJ, Choi H, Meese AF, Weon S, Stavitski E, Kim JH. Palladium Single-Atom (In)Stability Under Aqueous Reductive Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:13681-13690. [PMID: 37650677 PMCID: PMC10501378 DOI: 10.1021/acs.est.3c03346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/21/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023]
Abstract
Here, we investigate the stability and performance of single-atom Pd on TiO2 for the selective dechlorination of 4-chlorophenol. A challenge inherent to single atoms is their high surface free energy, which results in a tendency for the surface migration and aggregation of metal atoms. This work evaluates various factors affecting the stability of Pd single-atoms, including atomic dispersion, coordination environment, and substrate properties, under reductive aqueous conditions. The transition from single atoms to clusters vastly enhanced dechlorination kinetics without diminishing carbon-chlorine bond selectivity. X-ray absorption spectroscopy analysis using both in situ and ex situ conditions followed the dynamic transformation of single atoms into amorphous clusters, which consist of a unique unsaturated coordination environment and few nanometer diameter. The intricate relationship between stability and performance underscores the vital role of detailed characterization to properly determine the true active species for dehalogenation reactions.
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Affiliation(s)
- Kali Rigby
- Department
of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
- NSF
Nanosystems Engineering Research Center for Nanotechnology Enabled
Water Treatment (NEWT), Houston, Texas 77005, United States
| | - Dahong Huang
- Department
of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Denis Leshchev
- National
Synchrotron Light Source-II, Brookhaven
National Laboratory, Upton, New York 11973, United States
| | - Hyun Jeong Lim
- Department
of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Hyeyeon Choi
- School
of Health and Environmental Science, Korea
University, Seoul 02841, Republic
of Korea
- Department
of Health and Safety Convergence Science, Korea University, Seoul 02841, Republic
of Korea
| | - Aidan Francis Meese
- Department
of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Seunghyun Weon
- School
of Health and Environmental Science, Korea
University, Seoul 02841, Republic
of Korea
- Department
of Health and Safety Convergence Science, Korea University, Seoul 02841, Republic
of Korea
| | - Eli Stavitski
- National
Synchrotron Light Source-II, Brookhaven
National Laboratory, Upton, New York 11973, United States
| | - Jae-Hong Kim
- Department
of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
- NSF
Nanosystems Engineering Research Center for Nanotechnology Enabled
Water Treatment (NEWT), Houston, Texas 77005, United States
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14
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Ren T, Yu Z, Yu H, Deng K, Wang Z, Li X, Wang H, Wang L, Xu Y. Sustainable Ammonia Electrosynthesis from Nitrate Wastewater Coupled to Electrocatalytic Upcycling of Polyethylene Terephthalate Plastic Waste. ACS NANO 2023. [PMID: 37363822 DOI: 10.1021/acsnano.3c01862] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Integrating the nitrate reduction reaction (NO3RR) with polyethylene terephthalate (PET) hydrolysate oxidation to construct the nitrate/PET hydrolysate coelectrolysis system holds a great promise of realizing the simultaneous upcycling of nitrate wastewater and PET plastic waste, which, however, is still an almost untouched research area. Herein, we develop an ultralow content of Ru-incorporated Co-based metal-organic frameworks as a bifunctional precatalyst, which can be in situ reconstructed to Ru-Co(OH)2 at the cathode and Ru-CoOOH at the anode under electrocatalytic environments, and function as real active catalysts for the NO3RR and PET hydrolysate oxidation, respectively. With a two-electrode nitrate/PET hydrolysate coelectrolysis system, the current density of 50 mA cm-2 is achieved at a cell voltage of only 1.53 V, realizing the simultaneous production of ammonia and formate at a lower energy consumption. This study provides a concept for the construction of coelectrolysis systems for upcycling of nitrate wastewater and PET plastic waste.
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Affiliation(s)
- Tianlun Ren
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Zuan Yu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Hongjie Yu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Kai Deng
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Ziqiang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Xiaonian Li
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Hongjing Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Liang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - You Xu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
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15
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Pan F, Zhou J, Wang T, Zhu Y, Ma H, Niu J, Wang C. Revealing the activity origin of ultrathin nickel metal-organic framework nanosheet catalysts for selective electrochemical nitrate reduction to ammonia: Experimental and density functional theory investigations. J Colloid Interface Sci 2023; 638:26-38. [PMID: 36731216 DOI: 10.1016/j.jcis.2023.01.121] [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: 11/04/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 01/29/2023]
Abstract
The electrochemical nitrate reduction reaction (NitRR) affords a sustainable way for nitrate mitigation and ammonia synthesis, but there are still some problems such as poor nitrate conversion, low ammonia selectivity, and slow reaction kinetics. A clear structure-performance relationship is essential for designing efficient catalysts and understanding the reaction mechanisms. Herein, ultrathin nickel metal-organic framework (Ni-MOF) nanosheets supported on Ni foam featuring a well-defined stable structure, large electrochemically active surface area, and low electron transport resistance were prepared by a one-step solvothermal process. At -1.4 V, the nitrate reduction, rate constant, ammonia selectivity, and yield reached 96.4%, 0.448 h-1, 80%, and 110.13 ug·h-1·cm-2, respectively. Experimental and theoretical studies demonstrated that the hydroxyl-ligated Ni atoms exhibited higher nitrate adsorption properties and lower activation energy towards NitRR compared to carboxylic acid-ligated Ni atoms. Mechanism investigations revealed a nitrate-to-ammonia reaction pathway involving multiple intermediate species on Ni-MOF nanosheet catalysts. This work offers a new avenue to construct highly efficient electrocatalysts for the selective transformation of nitrate to valuable ammonia.
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Affiliation(s)
- Fan Pan
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, PR China
| | - Jianjun Zhou
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, PR China; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Tian Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, PR China
| | - Yunqing Zhu
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, PR China.
| | - Hongrui Ma
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, PR China
| | - Junfeng Niu
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, PR China; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, PR China
| | - Chuanyi Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian 710021, PR China
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16
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Ji XY, Sun K, Liu ZK, Liu X, Dong W, Zuo X, Shao R, Tao J. Identification of Dynamic Active Sites Among Cu Species Derived from MOFs@CuPc for Electrocatalytic Nitrate Reduction Reaction to Ammonia. NANO-MICRO LETTERS 2023; 15:110. [PMID: 37121962 PMCID: PMC10149566 DOI: 10.1007/s40820-023-01091-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/29/2023] [Indexed: 05/03/2023]
Abstract
Direct electrochemical nitrate reduction reaction (NITRR) is a promising strategy to alleviate the unbalanced nitrogen cycle while achieving the electrosynthesis of ammonia. However, the restructuration of the high-activity Cu-based electrocatalysts in the NITRR process has hindered the identification of dynamical active sites and in-depth investigation of the catalytic mechanism. Herein, Cu species (single-atom, clusters, and nanoparticles) with tunable loading supported on N-doped TiO2/C are successfully manufactured with MOFs@CuPc precursors via the pre-anchor and post-pyrolysis strategy. Restructuration behavior among Cu species is co-dependent on the Cu loading and reaction potential, as evidenced by the advanced operando X-ray absorption spectroscopy, and there exists an incompletely reversible transformation of the restructured structure to the initial state. Notably, restructured CuN4&Cu4 deliver the high NH3 yield of 88.2 mmol h-1 gcata-1 and FE (~ 94.3%) at - 0.75 V, resulting from the optimal adsorption of NO3- as well as the rapid conversion of *NH2OH to *NH2 intermediates originated from the modulation of charge distribution and d-band center for Cu site. This work not only uncovers CuN4&Cu4 have the promising NITRR but also identifies the dynamic Cu species active sites that play a critical role in the efficient electrocatalytic reduction in nitrate to ammonia.
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Affiliation(s)
- Xue-Yang Ji
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing, 102488, People's Republic of China
| | - Ke Sun
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing, 102488, People's Republic of China
| | - Zhi-Kun Liu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing, 102488, People's Republic of China
| | - Xinghui Liu
- Department of Chemistry, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea.
- Department of Materials Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMTS), Thandalam, Chennai, Tamilnadu, 602105, India.
| | - Weikang Dong
- Beijing Advanced Innovation Center for Intelligent Robots and Systems and Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Xintao Zuo
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, People's Republic of China
| | - Ruiwen Shao
- Beijing Advanced Innovation Center for Intelligent Robots and Systems and Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Jun Tao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing, 102488, People's Republic of China.
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17
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Luo W, Wu S, Jiang Y, Xu P, Zou J, Qian J, Zhou X, Ge Y, Nie H, Yang Z. Efficient Electrocatalytic Nitrate Reduction to Ammonia Based on DNA-Templated Copper Nanoclusters. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18928-18939. [PMID: 37014152 DOI: 10.1021/acsami.3c00511] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
In alkaline solutions, the electrocatalytic conversion of nitrates to ammonia (NH3) (NO3RR) is hindered by the sluggish hydrogenation step due to the lack of protons on the electrode surface, making it a grand challenge to synthesize NH3 at a high rate and selectivity. Herein, single-stranded deoxyribonucleic acid (ssDNA)-templated copper nanoclusters (CuNCs) were synthesized for the electrocatalytic production of NH3. Because ssDNA was involved in the optimization of the interfacial water distribution and H-bond network connectivity, the water-electrolysis-induced proton generation was enhanced on the electrode surface, which facilitated the NO3RR kinetics. The activation energy (Ea) and in situ spectroscopy studies adequately demonstrated that the NO3RR was exothermic until NH3 desorption, indicating that, in alkaline media, the NO3RR catalyzed by ssDNA-templated CuNCs followed the same reaction path as the NO3RR in acidic media. Electrocatalytic tests further verified the efficiency of ssDNA-templated CuNCs, which achieved a high NH3 yield rate of 2.62 mg h-1 cm-2 and a Faraday efficiency of 96.8% at -0.6 V vs reversible hydrogen electrode. The results of this study lay the foundation for engineering catalyst surface ligands for the electrocatalytic NO3RR.
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Affiliation(s)
- Wenjie Luo
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Shilu Wu
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Yingyang Jiang
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Peng Xu
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Jinxuan Zou
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Xuemei Zhou
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Yongjie Ge
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Huagui Nie
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
| | - Zhi Yang
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
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18
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Zhang Y, Zheng H, Zhou K, Ye J, Chu K, Zhou Z, Zhang L, Liu T. Conjugated Coordination Polymer as a New Platform for Efficient and Selective Electroreduction of Nitrate into Ammonia. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209855. [PMID: 36651132 DOI: 10.1002/adma.202209855] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Electroreduction of nitrate into ammonia (NRA) provides a sustainable route to convert the widespread nitrate pollutants into high-value-added products under ambient conditions, which unfortunately suffers from unsatisfactory selectivity due to the competitive hydrogen evolution reaction (HER). Previous strategies of modifying the metal sites of catalysts often met a dilemma for simultaneously promoting activity and selectivity toward NRA. Here, a general strategy is reported to enable an efficient and selective NRA process through coordination modulation of single-atom catalysts to tailor the local proton concentration at the catalyst surface. By contrast, two analogous Ni-single-atom enriched conjugated coordination polymers (NiO4 -CCP and NiN4 -CCP) with different coordination motifs are investigated for the proof-of-concept study. The NiO4 -CCP catalyst exhibits an ammonia yield rate as high as 1.83 mmol h-1 mg-1 with a Faradaic efficiency of 94.7% under a current density of 125 mA cm-2 , outperforming the NiN4 -CCP catalyst. These experimental and theoretical studies both suggest that the strategy of coordination modulation can not only accelerate the NRA by adjusting the adsorption energies of NRA intermediates on the metal sites but also inhibit the HER through regulating the proton migration with contributions from the metal-hydrated cations adsorbed at the catalyst surface, thus achieving simultaneous enhancement of NRA selectivity and activity.
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Affiliation(s)
- Yizhe Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Hui Zheng
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Kangjie Zhou
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Jinyu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Kaibin Chu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Zhiyou Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Longsheng Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Tianxi Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
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19
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Qu W, Chen C, Tang Z, Wen H, Hu L, Xia D, Tian S, Zhao H, He C, Shu D. Progress in metal-organic-framework-based single-atom catalysts for environmental remediation. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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20
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One Bicopper Complex with Good Affinity to Nitrate for Highly Selective Electrocatalytic Nitrate Reduction to Ammonia. Catalysts 2022. [DOI: 10.3390/catal12121561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Ammonia (NH3) plays an irreplaceable role in human life as a promising energy carrier and indispensable chemical raw material. Nitrate electroreduction to ammonium (NRA) not only removes nitrate pollutants, but also can be used for efficient NH3 production under ambient conditions. However, achieving high efficiency and selectivity of electrocatalysts is still a great challenge. Herein, a complex Cu2(NO3)4(BMMB)·H2O with a bicopper core is assembled by Cu(NO3)2·3H2O and 1,4-bis{[2-(2’-pyridyl)benzimidazolyl]methyl}benzene (BMMB) for NRA under alkaline conditions. The optimal sample showed excellent nitrate reduction performance with the NO3− conversion rate of 70%, Faradaic efficiency of up to 90%, and NH3 selectivity of more than 95%. The high-catalytic activity is mainly due to the ingeniously designed copper cores with strong affinity for NO3−, which accelerates the transferring rate of adsorbed nitrate on the Cu surface and increases the efficiency of rate-determining step (NO3− → NO2−) in the whole catalytic process. Therefore, the transformation of surface-exposed nitrate can be rapidly catalyzed by the Cu active sites, facilitating the conversion efficiency of nitrate.
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