1
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Zheng Y, Tan Y, Yu X, Yao H, Hu S, Hu J, Chen Z, Guo X. Optimized Intermediates Adsorption Configuration on Co-Doped Fe 2P@NiP 2 Heterojunction Interface for Enhanced Electrocatalytic Nitrate-To-Ammonia Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2312136. [PMID: 38482968 DOI: 10.1002/smll.202312136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/05/2024] [Indexed: 08/09/2024]
Abstract
The extraction of ammonia (NH3) through electrocatalytic nitrate reduction reaction (NO3 -RR) represents a sustainable avenue in NH3 generation and utilization. However, the catalytic efficiency of the NO3 -RR is hindered by the sluggish kinetics. This study first theoretically found that phosphide-based heterostructure can alter the adsorption structure of intermediates in the nitrate-to-ammonia process, thereby achieving precise regulation of the energy barrier in the rate-determining step. Based on theoretical design, a novel Co-doped Fe2P@NiP2 heterojunction catalyst is successfully synthesized, which deliver a notable NH3 yield rate of 0.395 mmol h-1 cm-2 at -0.7 V versus RHE, as well as a remarkable ammonia Faraday efficiency of 97.2% at -0.6 V versus RHE. Experimental and theoretical results further confirm that redistributing electrons and shifting the center of the d-band upwards through interfacial doping modulate intermediates adsorption strength and inhibition of hydrogen evolution, leading to excellent performance in NO3 --to-NH3. Further integrating the Co-Fe2P@NiP2 catalyst into a Zn-nitrate battery exhibits a substantial voltage output of 1.49 V and a commendable power density of 13.2 mW cm-2. The heteroatom-doped heterojunction strategy provides a versatile route for developing advanced catalysts, thereby broadening the horizons of electrocatalytic methodologies for nitrate reduction and ammonia synthesis.
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Affiliation(s)
- Yinan Zheng
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Yuan Tan
- School of Chemical Engineering, Northwest University, Xi'an, 710069, P. R. China
| | - Xin Yu
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Hu Yao
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Songjie Hu
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Jun Hu
- School of Chemical Engineering, Northwest University, Xi'an, 710069, P. R. China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore, 639798, Singapore
| | - Xiaohui Guo
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
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2
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Zhou B, Yu L, Zhang W, Liu X, Zhang H, Cheng J, Chen Z, Zhang H, Li M, Shi Y, Jia F, Huang Y, Zhang L, Ai Z. Cu 1-Fe Dual Sites for Superior Neutral Ammonia Electrosynthesis from Nitrate. Angew Chem Int Ed Engl 2024; 63:e202406046. [PMID: 38771293 DOI: 10.1002/anie.202406046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/05/2024] [Accepted: 05/20/2024] [Indexed: 05/22/2024]
Abstract
The electrochemical nitrate reduction reaction (NO3RR) is able to convert nitrate (NO3 -) into reusable ammonia (NH3), offering a green treatment and resource utilization strategy of nitrate wastewater and ammonia synthesis. The conversion of NO3 - to NH3 undergoes water dissociation to generate active hydrogen atoms and nitrogen-containing intermediates hydrogenation tandemly. The two relay processes compete for the same active sites, especially under pH-neutral condition, resulting in the suboptimal efficiency and selectivity in the electrosynthesis of NH3 from NO3 -. Herein, we constructed a Cu1-Fe dual-site catalyst by anchoring Cu single atoms on amorphous iron oxide shell of nanoscale zero-valent iron (nZVI) for the electrochemical NO3RR, achieving an impressive NO3 - removal efficiency of 94.8 % and NH3 selectivity of 99.2 % under neutral pH and nitrate concentration of 50 mg L-1 NO3 --N conditions, greatly surpassing the performance of nZVI counterpart. This superior performance can be attributed to the synergistic effect of enhanced NO3 - adsorption on Fe sites and strengthened water activation on single-atom Cu sites, decreasing the energy barrier for the rate-determining step of *NO-to-*NOH. This work develops a novel strategy of fabricating dual-site catalysts to enhance the electrosynthesis of NH3 from NO3 -, and presents an environmentally sustainable approach for neutral nitrate wastewater treatment.
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Affiliation(s)
- Biao Zhou
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Linghao Yu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Weixing Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Xupeng Liu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Hao Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Jundi Cheng
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Ziyue Chen
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Hao Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Meiqi Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yanbiao Shi
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Falong Jia
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Yi Huang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Lizhi Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Zhihui Ai
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
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3
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Chen Y, Chen C, Huang WH, Pao CW, Chang CC, Mao T, Wang J, Fu H, Lai F, Zhang N, Liu T. Charge Redistribution in High-Entropy Perovskite Oxide Porous Nanotubes Boosts Nitrate Electroreduction to Ammonia. ACS NANO 2024. [PMID: 39066738 DOI: 10.1021/acsnano.4c05422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
High-entropy perovskite oxides are promising materials in the field of electrocatalysis due to their advantages such as large spatial composition regulation, entropy effects, and tunable material properties. However, the preparation of high-entropy perovskite oxides with stable and controllable structures still remains challenging. Herein, we fabricated a series of high-entropy perovskite oxide porous nanotubes (PNTs) by electrospinning as efficient electrocatalysts for the nitrate reduction reaction (NO3RR). We further revealed that the different diffusion and decomposition behaviors of metal ions and polymers during the calcination process are the key to the formation of high-entropy perovskite oxide PNTs. Especially, LaSrNiCoMnFeCuO3 PNTs show excellent performance of the NO3RR, achieving the maximum NH3 Faradaic efficiency of almost 100%, yield rate of 1657.5 μg h-1 mgcat.-1, and durable stability after successive cycling, being one of the best electrocatalysts for the NO3RR. The mechanism studies show that the charge redistribution induced by the multisite synergistic effect and abundant unsaturated sites in the high-entropy perovskite oxide PNTs favors the adsorption of NO3- and key intermediates and reduces the catalytic energy barrier, thus further achieving high NO3- conversion efficiency.
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Affiliation(s)
- Yao Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Cun Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 300092, Taiwan
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 300092, Taiwan
| | - Chun-Chi Chang
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Tingjie Mao
- Key Laboratory of Leather of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, Zhejiang, China
| | - Juan Wang
- Key Laboratory of Leather of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, Zhejiang, China
| | - Hui Fu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Feili Lai
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
| | - Nan 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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4
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Guo J, Wang Q, Chen C, Zhang C, Xu Y, Zhang Y, Hong Y, Kan Z, Wu Y, Sun T, Liu S. High-efficiency electrochemical nitrate reduction to ammonia via boron-doped hydroxyl oxide cobalt induced electron delocalization. J Colloid Interface Sci 2024; 676:560-568. [PMID: 39053404 DOI: 10.1016/j.jcis.2024.07.160] [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: 06/13/2024] [Revised: 07/15/2024] [Accepted: 07/19/2024] [Indexed: 07/27/2024]
Abstract
Electrochemical nitrate reduction to ammonia is a promising alternative strategy for producing valuable ammonia. This prospective route, however, is subject to a slow electrocatalytic rate, which resulted from the weak adsorption and activation of intermediate species, and the low density electron cloud of active centers. To address this issue, we developed a novel approach by doping boron into metal hydroxyl oxides to adjust the electronic structure of active centers, and consequently, led a significant improvement in the Faraday efficiency upto approaching 100 %, as well as an impressive ammonia yield upto approximately 23 mg/h mgcat-1 at -0.6 V vs. reversible hydrogen electrode (RHE). Experimental data in mechanism demonstrate that the doped boron play a crucial role in modulating the local electronic environment surrounding the active sites Co. In situ Raman and FTIR spectra provide evidences that boron facilitates the formation of deoxidation and hydrogenation intermediates. Additionally, density functional theory (DFT) calculations support the notion that boron doping enhances the adsorption capability of intermediates, reduces the reaction barrier, and facilitates the desorption of NH3.
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Affiliation(s)
- Jing Guo
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China
| | - Qi Wang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China
| | - Chunxia Chen
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China.
| | - Chunfa Zhang
- Changchun Jiutai District People's Hospital, Changchun 130500, China
| | - Yinghua Xu
- Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 311215, China
| | - Yushuo Zhang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China
| | - Yan Hong
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China
| | - Ziwang Kan
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China
| | - Yingjie Wu
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China
| | - Tantan Sun
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China.
| | - Song Liu
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China.
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5
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Kesavan G, Sorescu DC, Ahamed R, Damodaran K, Crawford SE, Askari F, Star A. Influence of gadolinium doping on structural, optical, and electronic properties of polymeric graphitic carbon nitride. RSC Adv 2024; 14:23342-23351. [PMID: 39049892 PMCID: PMC11267507 DOI: 10.1039/d4ra03437f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024] Open
Abstract
Polymeric graphitic carbon nitride (gCN) materials have received great attention in the fields of photo and electrocatalysis due to their distinct properties in metal-free systems with high physicochemical stability. Nevertheless, the activity of undoped gCN is limited due to its relatively low specific surface area, low conductivity, and poor dispersibility. Doping Gd atoms in a gCN matrix is an efficient strategy to fine-tune its catalytic activity and its electronic structure. Herein, the influence of various wt% of gadolinium (Gd) doped in melon-type carbon nitride was systematically investigated. Gadolinium-doped graphitic carbon nitride (GdgCN) was synthesized by adding gadolinium nitrate to dicyandiamide during polymerization. The X-ray diffraction (XRD) and transmission electron microscopy (TEM) results revealed that the crystallinity and the morphological properties are influenced by the % of Gd doping. Furthermore, X-ray photoelectron spectroscopy (XPS) studies revealed that the gadolinium ions bonded with nitrogen atoms. Complementary density functional theory (DFT) calculations illustrate possible bonding configurations of Gd ions both in bulk material and on ultrathin melon layers and provide evidence for the corresponding bandgap modifications induced by gadolinium doping.
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Affiliation(s)
- Ganesh Kesavan
- Department of Chemistry, University of Pittsburgh Pittsburgh Pennsylvania 15260 USA
| | - Dan C Sorescu
- United States Department of Energy, National Energy Technology Laboratory Pittsburgh Pennsylvania 15236 USA
- Department of Chemical & Petroleum Engineering, University of Pittsburgh Pittsburgh Pennsylvania 15261 USA
| | - Raihan Ahamed
- Department of Chemistry, University of Pittsburgh Pittsburgh Pennsylvania 15260 USA
| | - Krishnan Damodaran
- Department of Chemistry, University of Pittsburgh Pittsburgh Pennsylvania 15260 USA
| | - Scott E Crawford
- United States Department of Energy, National Energy Technology Laboratory Pittsburgh Pennsylvania 15236 USA
| | - Faezeh Askari
- Department of Chemistry, University of Pittsburgh Pittsburgh Pennsylvania 15260 USA
| | - Alexander Star
- Department of Chemistry, University of Pittsburgh Pittsburgh Pennsylvania 15260 USA
- Department of Bioengineering, University of Pittsburgh Pittsburgh Pennsylvania 15261 USA
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6
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Pan Y, Zou Y, Ma C, Nga TTT, An Q, Miao R, Xia Z, Fan Y, Dong CL, Liu Q, Wang S. Electrocatalytic Coupling of Nitrate and Formaldehyde for Hexamethylenetetramine Synthesis via C-N Bond Construction and Ring Formation. J Am Chem Soc 2024; 146:19572-19579. [PMID: 38973100 DOI: 10.1021/jacs.4c06840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Hexamethylenetetramine (HMTA) is extensively used in the defense industry, medicines, food, plastics, rubber, and other applications. Traditional organic synthesis of HMTA relies on ammonia derived from the Haber process at high temperatures and pressures. In contrast, electrochemical methods enable a safe and green one-pot synthesis of HMTA from waste NO3-. However, HMTA synthesis through the electrochemical method is challenging owing to the complex reaction pathways involving C-N bond construction and ring formation. In this study, HMTA was efficiently synthesized over electrochemical oxidation-derived copper (e-OD-Cu), with a yield of 76.8% and a Faradaic efficiency of 74.9% at -0.30 VRHE. The catalytic mechanism and reaction pathway of HMTA synthesis on e-OD-Cu were investigated through a series of in situ characterization methods and density-functional theory calculations. The results demonstrated that the electrocatalytic synthesis of HMTA involved a tandem electrochemical-chemical reaction. Additionally, the results indicated that the presence of Cu vacancies enhanced substrate adsorption and inhibited the further hydrogenation of C═N. Overall, this study provides an electrocatalytic method for HMTA synthesis and an electrochemical strategy for constructing multiple C-N bonds.
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Affiliation(s)
- Yuping Pan
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, the National Supercomputer Centers in Changsha, Hunan University, Changsha 410082, P. R. China
| | - Yuqin Zou
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, the National Supercomputer Centers in Changsha, Hunan University, Changsha 410082, P. R. China
| | - Chongyang Ma
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, the National Supercomputer Centers in Changsha, Hunan University, Changsha 410082, P. R. China
| | - Ta Thi Thuy Nga
- Department of Physics, Tamkang University, New Taipei City 25137, Taiwan
| | - Qizheng An
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Rong Miao
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, the National Supercomputer Centers in Changsha, Hunan University, Changsha 410082, P. R. China
| | - Zhongcheng Xia
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, the National Supercomputer Centers in Changsha, Hunan University, Changsha 410082, P. R. China
| | - Yun Fan
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, the National Supercomputer Centers in Changsha, Hunan University, Changsha 410082, P. R. China
| | - Chung-Li Dong
- Department of Physics, Tamkang University, New Taipei City 25137, Taiwan
| | - Qinghua Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Shuangyin Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, the National Supercomputer Centers in Changsha, Hunan University, Changsha 410082, P. R. China
- Greater Bay Area Institute for Innovation, Hunan University, Guangzhou 511300, P. R. China
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Quoie Jr GDS, Jiao M, Lászlód K, Wang Y. Progress Made in Non-Metallic-Doped Materials for Electrocatalytic Reduction in Ammonia Production. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2419. [PMID: 38793485 PMCID: PMC11122855 DOI: 10.3390/ma17102419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/02/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024]
Abstract
The electrocatalytic production of ammonia has garnered considerable interest as a potentially sustainable technology for ammonia synthesis. Recently, non-metallic-doped materials have emerged as promising electrochemical catalysts for this purpose. This paper presents a comprehensive review of the latest research on non-metallic-doped materials for electrocatalytic ammonia production. Researchers have engineered a variety of materials, doped with non-metals such as nitrogen (N), boron (B), phosphorus (P), and sulfur (S), into different forms and structures to enhance their electrocatalytic activity and selectivity. A comparison among different non-metallic dopants reveals their distinct effects on the electrocatalytic performance for ammonia production. For instance, N-doping has shown enhanced activity owing to the introduction of nitrogen vacancies (NVs) and improved charge transfer kinetics. B-doping has demonstrated improved selectivity and stability, which is attributed to the formation of active sites and the suppression of competing reactions. P-doping has exhibited increased ammonia generation rates and Faradaic efficiencies, likely due to the modification of the electronic structure and surface properties. S-doping has shown potential for enhancing electrocatalytic performance, although further investigations are needed to elucidate the underlying mechanisms. These comparisons provide valuable insights for researchers to conduct in-depth studies focusing on specific non-metallic dopants, exploring their unique properties, and optimizing their performance for electrocatalytic ammonia production. However, we consider it a priority to provide insight into the recent progress made in non-metal-doped materials and their potential for enabling long-term and efficient electrochemical ammonia production. Additionally, this paper discusses the synthetic procedures used to produce non-metal-doped materials and highlights the advantages and disadvantages of each method. It also provides an in-depth analysis of the electrochemical performance of these materials, including their Faradaic efficiencies, ammonia yield rate, and selectivity. It examines the challenges and prospects of developing non-metallic-doped materials for electrocatalytic ammonia production and suggests future research directions.
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Affiliation(s)
- Gerald D. S. Quoie Jr
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; (G.D.S.Q.J.); (M.J.)
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Mingshuo Jiao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; (G.D.S.Q.J.); (M.J.)
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Krisztina Lászlód
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, H-1521 Budapest, Hungary
| | - Ying Wang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; (G.D.S.Q.J.); (M.J.)
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
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8
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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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Wu B, Huang L, Yan L, Gang H, Cao Y, Wei D, Wang H, Guo Z, Zhang W. Boron-Modulated Electronic-Configuration Tuning of Cobalt for Enhanced Nitric Oxide Fixation to Ammonia. NANO LETTERS 2023; 23:7120-7128. [PMID: 37490464 DOI: 10.1021/acs.nanolett.3c01994] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Electrocatalytic nitric oxide reduction (eNORR) to ammonia (NH3) provides an environmental route to alleviate NO pollution and yield great-value chemicals. The evolution of eNORR has been primarily hindered, however, by the poor reaction kinetics and low solubility of the NO in aqueous electrolytes. Herein, we have rationally designed a cobalt-based composite with a heterostructure as a highly efficient eNORR catalyst. In addition, by integrating boron to modulate the electronic structure, the catalyst CoB/Co@C delivered a significant NH3 yield of 315.4 μmol h-1 cm-2 for eNORR and an outstanding power density of 3.68 mW cm-2 in a Zn-NO battery. The excellent electrochemical performance of CoB/Co@C is attributed to the enrichment of NO by cobalt and boron dual-site adsorption and fast charge-transfer kinetics. It is demonstrated that the boron is pivotal in the enhancement of NO, the suppression of hydrogen evolution, and Co oxidation to boost eNORR performance.
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Affiliation(s)
- Bichao Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Lei Huang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Lvji Yan
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Haiyin Gang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Yiyun Cao
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Dun Wei
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Haiying Wang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Zaiping Guo
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Wenchao Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Changsha 410083, China
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10
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Zheng Y, Qin M, Yu X, Yao H, Zhang W, Xie G, Guo X. Constructing Ru@C 3 N 4 /Cu Tandem Electrocatalyst with Dual-Active Sites for Enhanced Nitrate Electroreduction to Ammonia. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2302266. [PMID: 37178389 DOI: 10.1002/smll.202302266] [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: 03/16/2023] [Revised: 04/25/2023] [Indexed: 05/15/2023]
Abstract
Electroreduction of nitrate to ammonia reaction (NO3 - RR) is considered as a promising carbon-free energy technique, which can eliminate nitrate from waste-water also produce value-added ammonia. However, it remains a challenge for achieving satisfied ammonia selectivity and Faraday efficiency (FE) due to the complex multiple-electron reduction process. Herein, a novel Tandem electrocatalyst that Ru dispersed on the porous graphitized C3 N4 (g-C3 N4 ) encapsulated with self-supported Cu nanowires (denoted as Ru@C3 N4 /Cu) for NO3 - RR is presented. As expected, a high ammonia yield of 0.249 mmol h-1 cm-2 at -0.9 V and high FENH3 of 91.3% at -0.8 V versus RHE can be obtained, while achieving excellent nitrate conversion (96.1%) and ammonia selectivity (91.4%) in neutral solution. In addition, density functional theory (DFT) calculations further demonstrate that the superior NO3 - RR performance is mainly resulted from the synergistic effect between the Ru and Cu dual-active sites, which can significantly enhance the adsorption of NO3 - and facilitate hydrogenation, as well as suppress the hydrogen evolution reaction, thus lead to highly improved NO3 - RR performances. This novel design strategy would pave a feasible avenue for the development of advanced NO3 - RR electrocatalysts.
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Affiliation(s)
- Yinan Zheng
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - MingXin Qin
- Laboratory for Physical Sciences at the Microscale, Synergistic Innovation of Quantum Information & Quantum technology, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xin Yu
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Hu Yao
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Wenhua Zhang
- Laboratory for Physical Sciences at the Microscale, Synergistic Innovation of Quantum Information & Quantum technology, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Gang Xie
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Xiaohui Guo
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
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11
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Guo H, Li M, Yang Y, Luo R, Liu W, Zhang F, Tang C, Yang G, Zhou Y. Self-Supported Pd Nanorod Arrays for High-Efficient Nitrate Electroreduction to Ammonia. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207743. [PMID: 36683224 DOI: 10.1002/smll.202207743] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Electrochemical nitrate (NO3 - ) reduction to ammonia (NH3 ) offers a promising pathway to recover NO3 - pollutants from industrial wastewater that can balance the nitrogen cycle and sustainable green NH3 production. However, the efficiency of electrocatalytic NO3 - reduction to NH3 synthesis remains low for most of electrocatalysts due to complex reaction processes and severe hydrogen precipitation reaction. Herein, high performance of nitrate reduction reaction (NO3 - RR) is demonstrated on self-supported Pd nanorod arrays in porous nickel framework foam (Pd/NF). It provides a lot of active sites for H* adsorption and NO3 - activation leading to a remarkable NH3 yield rate of 1.52 mmol cm-2 h-1 and a Faradaic efficiency of 78% at -1.4 V versus RHE. Notably, it maintains a high NH3 yield rate over 50 cycles in 25 h showing good stability. Remarkably, large-area Pd/NF electrode (25 cm2 ) shows a NH3 yield of 174.25 mg h-1 , be promising candidate for large-area device for industrial application. In situ FTIR spectroscopy and density functional theory calculations analysis confirm that the enrichment effect of Pd nanorods encourages the adsorption of H species for ammonia synthesis following a hydrogenation mechanism. This work brings a useful strategy for designing NO3 - RR catalysts of nanorod arrays with customizable compositions.
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Affiliation(s)
- Heng Guo
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Mengyue Li
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Yuantao Yang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Rui Luo
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Wei Liu
- XJTU-Oxford International Joint Research Laboratory of Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 7010049, China
| | - Fengying Zhang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Chun Tang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Guidong Yang
- XJTU-Oxford International Joint Research Laboratory of Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 7010049, China
| | - Ying Zhou
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
- Tianfu Yongxing Laboratory, Chengdu, 611130, China
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12
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Fu M, Mao Y, Wang H, Luo W, Jiang Y, Shen W, Li M, He R. Enhancing the electrocatalytic performance of nitrate reduction to ammonia by in-situ nitrogen leaching. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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13
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Li Y, Ren L, Li Z, Wang T, Wu Z, Wang Z. Harnessing Nickel Phthalocyanine-Based Electrochemical CNT Sponges for Ammonia Synthesis from Nitrate in Contaminated Water. ACS APPLIED MATERIALS & INTERFACES 2022; 14:53884-53892. [PMID: 36420862 DOI: 10.1021/acsami.2c16856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Electrochemical reduction of nitrate to ammonia is of great interest in water treatment with regard to the conversion of contaminants to value-added products, which requires the development of advanced electrodes to achieve high selectivity, stability, and Faradaic efficiency (FE). Herein, nickel phthalocyanine was homogeneously doped into the fiber of a carbon nanotube (CNT) sponge, enabling the production of an electrode with high electrochemical double-layer capacitance (CDL) and a large electrochemically active surface area (ECSA). The as-prepared NiPc-CNT sponge could achieve 97.6% nitrate removal, 88.4% ammonia selectivity, and 86.8% FE at a nitrate concentration of 50 mg-N L-1 under an optimized potential of -1.2 V (vs Ag/AgCl). Meanwhile, the ammonia selectivity could be further improved at the high nitrate concentration. Density functional theory calculations showed that the exposure of Ni-N4 active sites could effectively suppress the hydrogen evolution reaction and dinitrogen generation, enhancing the ammonia selectivity and Faradaic efficiency. Overall, this work sheds light on the conversion of nitrate to ammonia on the metal phthalocyanine-based electrode, offering a novel strategy for managing nitrate in wastewater.
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Affiliation(s)
- Yang Li
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
- Tongji Advanced Membrane Technology Center, Shanghai 200092, China
| | - Lehui Ren
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
- Tongji Advanced Membrane Technology Center, Shanghai 200092, China
| | - Zhouyan Li
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
- Tongji Advanced Membrane Technology Center, Shanghai 200092, China
| | - Tianlin Wang
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
- Tongji Advanced Membrane Technology Center, Shanghai 200092, China
| | - Zhichao Wu
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
- Tongji Advanced Membrane Technology Center, Shanghai 200092, China
| | - Zhiwei Wang
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
- Tongji Advanced Membrane Technology Center, Shanghai 200092, China
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14
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Lv C, Liu J, Lee C, Zhu Q, Xu J, Pan H, Xue C, Yan Q. Emerging p-Block-Element-Based Electrocatalysts for Sustainable Nitrogen Conversion. ACS NANO 2022; 16:15512-15527. [PMID: 36240028 DOI: 10.1021/acsnano.2c07260] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Artificial nitrogen conversion reactions, such as the production of ammonia via dinitrogen or nitrate reduction and the synthesis of organonitrogen compounds via C-N coupling, play a pivotal role in the modern life. As alternatives to the traditional industrial processes that are energy- and carbon-emission-intensive, electrocatalytic nitrogen conversion reactions under mild conditions have attracted significant research interests. However, the electrosynthesis process still suffers from low product yield and Faradaic efficiency, which highlight the importance of developing efficient catalysts. In contrast to the transition-metal-based catalysts that have been widely studied, the p-block-element-based catalysts have recently shown promising performance because of their intriguing physiochemical properties and intrinsically poor hydrogen adsorption ability. In this Perspective, we summarize the latest breakthroughs in the development of p-block-element-based electrocatalysts toward nitrogen conversion applications, including ammonia electrosynthesis from N2 reduction and nitrate reduction and urea electrosynthesis using nitrogen-containing feedstocks and carbon dioxide. The catalyst design strategies and the underlying reaction mechanisms are discussed. Finally, major challenges and opportunities in future research directions are also proposed.
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Affiliation(s)
- Chade Lv
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Jiawei Liu
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
| | - Carmen Lee
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
| | - Qiang Zhu
- Institute of Materials Research and Engineering, A*STAR, 2 Fusionopolis Way, Innovis, #08-03, 138634 Singapore
| | - Jianwei Xu
- Institute of Materials Research and Engineering, A*STAR, 2 Fusionopolis Way, Innovis, #08-03, 138634 Singapore
- Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, 627833 Singapore
| | - Hongge Pan
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an 710021, China
| | - Can Xue
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
| | - Qingyu Yan
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
- Institute of Materials Research and Engineering, A*STAR, 2 Fusionopolis Way, Innovis, #08-03, 138634 Singapore
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15
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Xue Y, Yu Q, Ma Q, Chen Y, Zhang C, Teng W, Fan J, Zhang WX. Electrocatalytic Hydrogenation Boosts Reduction of Nitrate to Ammonia over Single-Atom Cu with Cu(I)-N 3C 1 Sites. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:14797-14807. [PMID: 36175172 DOI: 10.1021/acs.est.2c04456] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The conversion of nitrate to ammonia can serve two important functions: mitigating nitrate pollution and offering a low energy intensity pathway for ammonia synthesis. Conventional ammonia synthesis from electrocatalytic nitrate reduction reactions (NO3RR) is often impeded by incomplete nitrate conversion, sluggish kinetics, and the competition of hydrogen evolution reactions. Herein, atomic Cu sites anchored on micro-/mesoporous nitrogen-doped carbon (Cu MNC) with fine-tuned hydrophilicity, micro-/mesoporous channels, and abundant Cu(I) sites were synthesized for selective nitrate reduction to ammonia, achieving ambient temperature and pressure hydrogenation of nitrate. Laboratory experiments demonstrated that the catalyst has an ammonia yield rate per active site of 5466 mmol gCu-1 h-1 and transformed 94.8% nitrate in wastewater containing 100 mg-N L-1 to near drinking water standard (MCL of 5 mg-N L-1) at -0.64 V vs RHE. Extended X-ray absorption fine structure (EXAFS) and theoretical calculations showed that the coordination environment of Cu(I) sites (Cu(I)-N3C1) localizes the charge around the central Cu atoms and adsorbs *NO3 and *H onto neighboring Cu and C sites with balanced adsorption energy. The Cu(I)-N3C1 moieties reduce the activation energy of rate-limiting steps (*HNO3 → *NO2, *NH2 → *NH3) compared with conventional Cu(II)-N4 and lead to a thermodynamically favorable process to NH3. The as-prepared electrocatalytic cell can run continuously for 84 h (14 cycles) and produce 21.7 mgNH3 with only 5.64 × 10-3 kWh energy consumption, suitable for decentralized nitrate removal and ammonia synthesis from nitrate-containing wastewater.
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Affiliation(s)
- Yinghao Xue
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, P. R. China
| | - Qihui Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, P. R. China
| | - Qian Ma
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, P. R. China
| | - Yanyan Chen
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, P. R. China
| | - Chuning Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, P. R. China
| | - Wei Teng
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, P. R. China
| | - Jianwei Fan
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, P. R. China
| | - Wei-Xian Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, P. R. China
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16
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Zhu X, Huang H, Zhang H, Zhang Y, Shi P, Qu K, Cheng SB, Wang AL, Lu Q. Filling Mesopores of Conductive Metal-Organic Frameworks with Cu Clusters for Selective Nitrate Reduction to Ammonia. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32176-32182. [PMID: 35802788 DOI: 10.1021/acsami.2c09241] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The electrocatalytic nitrate reduction reaction (NO3-RR) to ammonia (NH3) under ambient conditions not only has the benefit of lowering energy consumption, but also helps remove nitrate contamination. Inspired by the unique structure of nitrate/nitrite reductase with the active spheroproteins encapsulated by larger enzymes, herein, we develop an in situ synthetic strategy for the construction of metal cluster-conductive metal-organic framework (MOF) composite electrocatalysts. The metallic Cu clusters are filled into the mesopores of a conductive copper-based MOF (i.e., CuHHTP); meanwhile, CuHHTP with a porous structure provides an internal environment to limit the growth of metallic Cu clusters with an ultrasmall size (i.e., 1.5 ± 0.2 nm) and restrains their aggregation. The obtained Cu@CuHHTP exhibits superb performance for NO3-RR. In a neutral electrolyte with 500 ppm NO3-, Cu@CuHHTP shows a high NO3- conversion of 85.81% and a selectivity for NH3 of 96.84%. 15N isotope labeling experiments confirm that the formation of NH3 originates from the process of NO3-RR. Theoretical calculations confirm that Cu clusters are the active sites in the composite electrocatalysts, in which the proper d-band center and the "accept-donate" mechanism in charge transfer are the key factors for the improvement of the electrocatalytic performance.
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Affiliation(s)
- Xiaojuan Zhu
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Haicai Huang
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
| | - Huaifang Zhang
- School of Materials Science and Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China
| | - Yu Zhang
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Peidong Shi
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Kaiyu Qu
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Shi-Bo Cheng
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
| | - An-Liang Wang
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Qipeng Lu
- School of Materials Science and Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China
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17
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Ghosh M, Ibrar M, Smith JM. Electrocatalytic reduction of nitrate by in situ generated cobalt nanoparticles. Chem Commun (Camb) 2022; 58:4783-4786. [PMID: 35343539 DOI: 10.1039/d2cc00853j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cobalt pyridinophane complex [Co(HN4)Cl2]+ (HN4 = 3,7-diaza-1,5(2,6)-dipyridinacyclooctaphane) is converted under catalytic conditions to an electrode-adsorbed species. Aqueous Co2+ solutions similarly deposit a species under these conditions. Surface characterization reveals the formation of Co nanoparticles. These nanoparticles are active in the electrocatalytic redution of aqueous nitrate.
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Affiliation(s)
- Moumita Ghosh
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA.
| | - Maha Ibrar
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA.
| | - Jeremy M Smith
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA.
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