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Yang J, Zhao J, Wang H, Liu Y, Ding J, Wang T, Wang J, Zhang H, Bai L, Liang H. Cobalt single-atom catalyst tailored ceramic membrane for selective removal of emerging organic contaminants. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2024; 21:100416. [PMID: 38584706 PMCID: PMC10998086 DOI: 10.1016/j.ese.2024.100416] [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: 09/30/2023] [Revised: 03/15/2024] [Accepted: 03/16/2024] [Indexed: 04/09/2024]
Abstract
Water reuse is an effective way to solve the issues of current wastewater increments and water resource scarcity. Ultrafiltration, a promising method for water reuse, has the characteristics of low energy consumption, easy operation, and high adaptability to coupling with other water treatment processes. However, emerging organic contaminants (EOCs) in municipal wastewater cannot be effectively intercepted by ultrafiltration, which poses significant challenges to the effluent quality and sustainability of ultrafiltration process. Here, we develop a cobalt single-atom catalyst-tailored ceramic membrane (Co1-NCNT-CM) in conjunction with an activated peroxymonosulfate (PMS) system, achieving excellent EOCs degradation and anti-fouling performance. An interfacial reaction mechanism effectively mitigates membrane fouling through a repulsive interaction with natural organic matter. The generation of singlet oxygen at the Co-N3-C active sites through a catalytic pathway (PMS→PMS∗→OH∗→O∗→OO∗→1O2) exhibits selective oxidation of phenols and sulfonamides, achieving >90% removal rates. Our findings elucidate a multi-layered functional architecture within the Co1-NCNT-CM/PMS system, responsible for its superior performance in organic decontamination and membrane maintenance during secondary effluent treatment. It highlights the power of integrating Co1-NCNT-CM/PMS systems in advanced wastewater treatment frameworks, specifically for targeted EOCs removal, heralding a new direction for sustainable water management.
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Affiliation(s)
- Jiaxuan Yang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Jing Zhao
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Hesong Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Yatao Liu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, PR China
| | - Junwen Ding
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Tianyi Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Jinlong Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Han Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Langming Bai
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
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2
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Dong R, Gao J, Vo TG, Xi S, Kee CW, Cao X, Chu W, Liu Y. Engineering high-valence metal-enriched cobalt oxyhydroxide catalysts for an enhanced OER under near-neutral pH conditions. NANOSCALE 2024; 16:12482-12491. [PMID: 38856654 DOI: 10.1039/d4nr01168f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Understanding water splitting in pH-neutral media has important implications for hydrogen production from seawater. Despite their significance, electrochemical water oxidation and reduction in neutral electrolytes still face great challenges. This study focuses on designing efficient electrocatalysts capable of promoting the oxygen evolution reaction (OER) in neutral media by incorporating high-valence elements into transition-metal hydroxides. The as-prepared and optimized two-dimensional Mo-Co(OH)2 nanosheets, which undergo operando transformation into oxyhydroxide active species, demonstrated an overpotential of 550 mV at 10 mA cm-2 with a Tafel slope of 110.1 mV dec-1 in 0.5 M KHCO3. In situ X-ray absorption spectroscopy revealed that the incorporation of high-valence elements facilitates the generation of CoOOH active sites at low potential and enhances electron transfer kinetics by altering the electronic environment of the Co center. This study offers new insights for developing more efficient OER electrocatalysts and provides fresh ideas for seawater utilization through the study of the reaction mechanism of the near-neutral-pH OER.
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Affiliation(s)
- Ruijing Dong
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, China.
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology, and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore.
| | - Jiajian Gao
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology, and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore.
| | - Truong-Giang Vo
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology, and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore.
| | - Shibo Xi
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology, and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore.
| | - Choon Wee Kee
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology, and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore.
| | - Xun Cao
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology, and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore.
| | - Wei Chu
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, China.
| | - Yan Liu
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology, and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore.
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Ma Y, Ha Y, Chen L, An Z, Xing L, Wang Z, Li Z. Electrochemically Induced Ru/CoOOH Synergistic Catalyst as Bifunctional Electrode Materials for Alkaline Overall Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311884. [PMID: 38412403 DOI: 10.1002/smll.202311884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/16/2024] [Indexed: 02/29/2024]
Abstract
Efficient and affordable price bifunctional electrocatalysts based on transition metal oxides for oxygen and hydrogen evolution reactions have a balanced efficiency, but it remains a significant challenge to control their activity and durability. Herein, a trace Ru (0.74 wt.%) decorated ultrathin CoOOH nanosheets (≈4 nm) supported on the surface of nickel foam (Ru/CoOOH@NF) is rationally designed via an electrochemically induced strategy to effectively drive the electrolysis of alkaline overall water splitting. The as-synthesized Ru/CoOOH@NF electrocatalysts integrate the advantages of a large number of different HER (Ru nanoclusters) and OER (CoOOH nanosheets) active sites as well as strong in-suit structure stability, thereby exhibiting exceptional catalytic activity. In particular, the ultra-low overpotential of the HER (36 mV) and the OER (264 mV) are implemented to achieve 10 mA cm-2. Experimental and theoretical calculations also reveal that Ru/CoOOH@NF possesses high intrinsic conductivity, which facilitates electron release from H2O and H-OH bond breakage and accelerates electron/mass transfer by regulating the charge distribution. This work provides a new avenue for the rational design of low-cost and high-activity bifunctional electrocatalysts for large-scale water-splitting technology and expects to help contribute to the creation of various hybrid electrocatalysts.
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Affiliation(s)
- Yingyan Ma
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Yuan Ha
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Liangqiang Chen
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Ziqi An
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Linzhuang Xing
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Zhenni Wang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
| | - Zhimin Li
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
- Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, Xi'an, 710071, China
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Peng W, Zhang W, Lu Y, Li W, He J, Zhou D, Hu W, Zhong X. Mo-doping and construction of the heterostructure between NiFe LDH and NiS x co-trigger the activity enhancement for overall water splitting. J Colloid Interface Sci 2024; 664:980-991. [PMID: 38508033 DOI: 10.1016/j.jcis.2024.03.062] [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: 01/25/2024] [Revised: 03/06/2024] [Accepted: 03/09/2024] [Indexed: 03/22/2024]
Abstract
To reduce the preparation cost of high-purity hydrogen, it is necessary to search suitable non-precious metal catalysts with high activity and robust stability. Herein, two means (heteroatom-doping and the heterostructure construction) were adopted together to improve the dual-function activity of NiFe LDH which was widely used in water electrolysis. Mo doped NiFe LDH nanoflowers were firstly generated by hydrothermal reaction, and then NiSx was modified on the petals via electrodeposition. Finally, the obtained NF/Mo-NiFe LDH/NiSx with large electrochemical active area exhibits the expected electrochemical performance with the overpotential at 100 mA cm-2 of 169 and 249 mV for hydrogen evolution (HER) and oxygen evolution reaction (OER) respectively. Assembling NF/Mo-NiFe LDH/NiSx into a two-electrode device for the integral water electrolysis, it just requires a cell voltage of 1.69 V to drive a current density of 100 mA cm-2, and keeps stable after 50-hour continuous operation in 1.0 M KOH. Mo-doping not only regulates the electronic structure of the transition metals and reduces the energy barrier of HER intermediates, but also facilitates the generation of reactive sites for OER. Meanwhile, the construction of heterointerface ensures the synergism between NiSx and Mo-NiFe LDH and accelerates the electron transfer across interfaces, thus enhancing the bifunctional performance.
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Affiliation(s)
- Wendi Peng
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Wenting Zhang
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Yanli Lu
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Wanping Li
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Jiao He
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Dan Zhou
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Wei Hu
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Xinxin Zhong
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
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5
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Han J, Wang H, Wang Y, Zhang H, Li J, Xia Y, Zhou J, Wang Z, Luo M, Wang Y, Wang N, Cortés E, Wang Z, Vomiero A, Huang ZF, Ren H, Yuan X, Chen S, Feng D, Sun X, Liu Y, Liang H. Lattice Oxygen Activation through Deep Oxidation of Co 4N by Jahn-Teller-Active Dopants for Improved Electrocatalytic Oxygen Evolution. Angew Chem Int Ed Engl 2024:e202405839. [PMID: 38801294 DOI: 10.1002/anie.202405839] [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: 03/27/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 05/29/2024]
Abstract
Triggering the lattice oxygen oxidation mechanism is crucial for improving oxygen evolution reaction (OER) performance, because it could bypass the scaling relation limitation associated with the conventional adsorbate evolution mechanism through the direct formation of oxygen-oxygen bond. High-valence transition metal sites are favorable for activating the lattice oxygen, but the deep oxidation of pre-catalysts suffers from a high thermodynamic barrier. Here, taking advantage of the Jahn-Teller (J-T) distortion induced structural instability, we incorporate high-spin Mn3+ (t 2 g 3 e g 1 ${{t}_{2g}^{3}{e}_{g}^{1}}$ ) dopant into Co4N. Mn dopants enable a surface structural transformation from Co4N to CoOOH, and finally to CoO2, as observed by various in situ spectroscopic investigations. Furthermore, the reconstructed surface on Mn-doped Co4N triggers the lattice oxygen activation, as evidenced experimentally by pH-dependent OER, tetramethylammonium cation adsorption and online electrochemical mass spectrometry measurements of 18O-labelled catalysts. In general, this work not only offers the introducing J-T effect approach to regulate the structural transition, but also provides an understanding about the influence of the catalyst's electronic configuration on determining the reaction route, which may inspire the design of more efficient catalysts with activated lattice oxygen.
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Affiliation(s)
- Jingrui Han
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, P.R. China
| | - Haibin Wang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, P.R. China
| | - Yuting Wang
- School of Science, Tianjin University, Tianjin, 300350, P.R. China
| | - Hao Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou, 215000, P.R. China
| | - Jun Li
- Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China
| | - Yujian Xia
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou, 215000, P.R. China
| | - Jieshu Zhou
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, P.R. China
| | - Ziyun Wang
- School of Chemical Sciences, the University of Auckland, Auckland, 1010, New Zealand
| | - Mingchuan Luo
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P.R. China
| | - Yuhang Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou, 215000, P.R. China
| | - Ning Wang
- Beijing Institute of Smart Energy, Beijing, 102209, P. R. China
| | - Emiliano Cortés
- Nanoinstitute Munich, Faculty of Physics, Ludwig Maximilians University of Munich, 80539, Mu-nich, Germany
| | - Zumin Wang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, P.R. China
| | - Alberto Vomiero
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, 97187, Luleå, Sweden
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Venezia Mestre, Italy
| | - Zhen-Feng Huang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P.R. China
| | - Hangxing Ren
- PERIC Hydrogen Technologies Co., Ltd., Handan, 056027, P.R. China
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R.China
| | - Xianming Yuan
- PERIC Hydrogen Technologies Co., Ltd., Handan, 056027, P.R. China
| | - Songhua Chen
- College of Chemistry and Material Science, Longyan University, Longyan, 364012, P.R. China
| | - Donghui Feng
- PERIC Hydrogen Technologies Co., Ltd., Handan, 056027, P.R. China
| | - Xuhui Sun
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou, 215000, P.R. China
| | - Yongchang Liu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, P.R. China
- State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation, Tianjin University, Tianjin, 300350, P.R. China
| | - Hongyan Liang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, P.R. China
- College of Chemistry and Material Science, Longyan University, Longyan, 364012, P.R. China
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de Lima AFV, Lourenço ADA, Silva VD, Menezes de Oliveira AL, Rostas AM, Barbu-Tudoran L, Leostean C, Pana O, da Silva RB, Macedo DA, da Silva FF. Co 3O 4/activated carbon nanocomposites as electrocatalysts for the oxygen evolution reaction. Dalton Trans 2024; 53:8563-8575. [PMID: 38682235 DOI: 10.1039/d3dt03720g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The Oxygen Evolution Reaction (OER) is crucial in various processes such as hydrogen production via water splitting. Several electrocatalysts, including metal oxides, have been evaluated to enhance the reaction efficiency. Zeolitic Imidazolate Framework-67 (ZIF-67) has been employed as a precursor to produce Co3O4, showing high OER activity. Additionally, the formation of composites with carbon-based materials improves the activity of these materials. Thus, this work focuses on synthesizing ZIF-67 and commercial activated carbon (AC) composites, which were used as precursors to obtain Co3O4/C electrocatalysts by calculating ZIF-67/CX (X = 10, 30, and 50, the mass percentage of AC). The obtained materials were thoroughly characterized by employing X-ray powder diffraction (XRD), confirming the cobalt oxide structure with a sphere-like morphology as observed in the TEM images. The presence of oxygen vacancies was confirmed by infrared spectroscopy and EPR measurements. The electrocatalytic performance in the OER was investigated by linear sweep voltammetry (LSV), which revealed an overpotential of 325 mV at 10 mA cm-2 and a Tafel slope value of 65.32 mV dec-1 for Co3O4/C10, superior in activity to several previously reported studies in the literature and electrochemical stability of up to 8 hours. The reduced value of charge transfer resistance, high double-layer capacitance, and the presence of Co3+ ions justify the superior performance of the Co3O4/C10 electrocatalyst.
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Affiliation(s)
- Andrei F V de Lima
- Departamento de Química, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil.
| | - Annaíres de A Lourenço
- Departamento de Química, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil.
| | - Vinícius D Silva
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPCEM, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - André L Menezes de Oliveira
- Núcleo de Pesquisa e Extensão LACOM, Departamento de Química, Universidade Federal da Paraíba, 52051-85, João Pessoa-PB, Brazil
| | - Arpad M Rostas
- Department of Physics of Nanostructure Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- Department of Physics of Nanostructure Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Cristian Leostean
- Department of Physics of Nanostructure Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Ovidiu Pana
- Department of Physics of Nanostructure Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Rodolfo B da Silva
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPCEM, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - Daniel A Macedo
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPCEM, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - Fausthon F da Silva
- Departamento de Química, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil.
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Lin X, Li X, Shi L, Ye F, Liu F, Liu D. In Situ Electrochemical Restructuring B-Doped Metal-Organic Frameworks as Efficient OER Electrocatalysts for Stable Anion Exchange Membrane Water Electrolysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308517. [PMID: 38155580 DOI: 10.1002/smll.202308517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/25/2023] [Indexed: 12/30/2023]
Abstract
Metal organic frameworks (MOFs) are promising as effective electrocatalysts toward oxygen evolution reaction (OER). However, the origin of OER activity for MOF-based electrocatalysts is still unclear because of their structure reconstruction during electrocatalysis process. Here, a novel MOF (B-MOF-Zn-Co) with spherical superstructure is developed by hydrothermal treatment of zeolitic imidazolate framework-Zn, Co (ZIF-Zn-Co) using boric acid. The resultant B-MOF-Zn-Co shows high OER activity with a low overpotential of 362 mV at 100 mA cm-2. Remarkably, B-MOF-Zn-Co displays excellent stability with only 3.6% voltage delay over 300 h at 100 mA cm-2 in alkaline electrolyte. Surprisingly, B-MOF-Zn-Co thoroughly transforms into B-doped CoOOH (B-CoOOH) during electrolysis process, which is served as actual active material for high OER electrocatalytic performance. The newly-formed B-CoOOH possesses lower energy barrier of potential-determining step (PDS) for OOH* formation compared with CoOOH, benefiting for high OER activity. More importantly, B-MOF-Zn-Co based anion exchange membrane water electrolytic cell (AEMWE) demonstrates continuously durable operation with stable current density of 200 mA cm-2 over 300 h, illustrating its potential application in practice water electrolysis. This work offers an in situ electrochemical reconstruction strategy for the development of stable and effective OER electrocatalysts toward practice AEMWE.
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Affiliation(s)
- Xuanni Lin
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xue Li
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Lei Shi
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Fenghui Ye
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Feng Liu
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Dong Liu
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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8
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Wetzel A, Morell D, von der Au M, Wittstock G, Ozcan O, Witt J. Transpassive Metal Dissolution vs. Oxygen Evolution Reaction: Implication for Alloy Stability and Electrocatalysis. Angew Chem Int Ed Engl 2024; 63:e202317058. [PMID: 38369613 DOI: 10.1002/anie.202317058] [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: 11/09/2023] [Revised: 01/18/2024] [Accepted: 02/01/2024] [Indexed: 02/20/2024]
Abstract
Multi-principal element alloys (MPEAs) are gaining interest in corrosion and electrocatalysis research due to their electrochemical stability across a broad pH range and the design flexibility they offer. Using the equimolar CrCoNi alloy, we observe significant metal dissolution in a corrosive electrolyte (0.1 M NaCl, pH 2) concurrently with the oxygen evolution reaction (OER) in the transpassive region, despite the absence of hysteresis in polarization curves or other obvious corrosion indicators. We present a characterization scheme to delineate the contribution of OER and alloy dissolution, using scanning electrochemical microscopy (SECM) for OER-onset detection, and quantitative chemical analysis with inductively coupled-mass spectrometry (ICP-MS) and ultraviolet visible light (UV/Vis) spectrometry to elucidate metal dissolution processes. In situ electrochemical atomic force microscopy (EC-AFM) revealed that the transpassive metal dissolution on CrCoNi is dominated by intergranular corrosion. These results have significant implications for the stability of MPEAs in corrosion systems, emphasizing the necessity of analytically determining metal ions released from MPEA electrodes into the electrolyte when evaluating Faradaic efficiencies of OER catalysts. The release of transition metal ions not only reduces the Faradaic efficiency of electrolyzers but may also cause poisoning and degradation of membranes in electrochemical reactors.
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Affiliation(s)
- Annica Wetzel
- Bundesanstalt für Materialforschung und, Prüfung (BAM) Institution, Unter den Eichen 87, 12205, Berlin, Germany
- Institute of Chemistry, Carl v. Ossietzky Universität Oldenburg, Ammerländer Heerstrasse 114-118, 26129, Oldenburg, Germany
| | - Daniel Morell
- Bundesanstalt für Materialforschung und, Prüfung (BAM) Institution, Unter den Eichen 87, 12205, Berlin, Germany
| | - Marcus von der Au
- Bundesanstalt für Materialforschung und, Prüfung (BAM) Institution, Unter den Eichen 87, 12205, Berlin, Germany
| | - Gunther Wittstock
- Institute of Chemistry, Carl v. Ossietzky Universität Oldenburg, Ammerländer Heerstrasse 114-118, 26129, Oldenburg, Germany
| | - Ozlem Ozcan
- Bundesanstalt für Materialforschung und, Prüfung (BAM) Institution, Unter den Eichen 87, 12205, Berlin, Germany
| | - Julia Witt
- Bundesanstalt für Materialforschung und, Prüfung (BAM) Institution, Unter den Eichen 87, 12205, Berlin, Germany
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9
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Quan L, Jiang H, Mei G, Sun Y, You B. Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting. Chem Rev 2024; 124:3694-3812. [PMID: 38517093 DOI: 10.1021/acs.chemrev.3c00332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts for the two half-reactions of water splitting (e.g., the hydrogen and oxygen evolution reactions, HER and OER) separately, there has been a growing interest in designing and developing bifunctional electrocatalysts, which are able to catalyze both the HER and OER. In addition, considering the high overpotentials required for OER while limited value of the produced oxygen, there is another rapidly growing interest in exploring alternative oxidation reactions to replace OER for hybrid water splitting toward energy-efficient hydrogen generation. This Review begins with an introduction on the fundamental aspects of water splitting, followed by a thorough discussion on various physicochemical characterization techniques that are frequently employed in probing the active sites, with an emphasis on the reconstruction of bifunctional electrocatalysts during redox electrolysis. The design, synthesis, and performance of diverse bifunctional electrocatalysts based on noble metals, nonprecious metals, and metal-free nanocarbons, for overall water splitting in acidic and alkaline electrolytes, are thoroughly summarized and compared. Next, their application toward hybrid water splitting is also presented, wherein the alternative anodic reactions include sacrificing agents oxidation, pollutants oxidative degradation, and organics oxidative upgrading. Finally, a concise statement on the current challenges and future opportunities of bifunctional electrocatalysts for both overall and hybrid water splitting is presented in the hope of guiding future endeavors in the quest for energy-efficient and sustainable green hydrogen production.
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Affiliation(s)
- Li Quan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Hui Jiang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Guoliang Mei
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Yujie Sun
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Bo You
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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10
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Zhao W, Yang J, Xu F, Weng B. Recent Advancements on Spin Engineering Strategies for Highly Efficient Electrocatalytic Oxygen Evolution Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401057. [PMID: 38587966 DOI: 10.1002/smll.202401057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/15/2024] [Indexed: 04/10/2024]
Abstract
Oxygen evolution reaction (OER) is a widely employed half-electrode reaction in oxygen electrochemistry, in applications such as hydrogen evolution, carbon dioxide reduction, ammonia synthesis, and electrocatalytic hydrogenation. Unfortunately, its slow kinetics limits the commercialization of such applications. It is therefore highly imperative to develop highly robust electrocatalysts with high activity, long-term durability, and low noble-metal contents. Previously intensive efforts have been made to introduce the advancements on developing non-precious transition metal electrocatalysts and their OER mechanisms. Electronic structure tuning is one of the most effective and interesting ways to boost OER activity and spin angular momentum is an intrinsic property of the electron. Therefore, modulation on the spin states and the magnetic properties of the electrocatalyst enables the changes on energy associated with interacting electron clouds with radical absorbance, affecting the OER activity and stability. Given that few review efforts have been made on this topic, in this review, the-state-of-the-art research progress on spin-dependent effects in OER will be briefed. Spin engineering strategies, such as strain, crystal surface engineering, crystal doping, etc., will be introduced. The related mechanism for spin manipulation to boost OER activity will also be discussed. Finally, the challenges and prospects for the development of spin catalysis are presented. This review aims to highlight the significance of spin engineering in breaking the bottleneck of electrocatalysis and promoting the practical application of high-efficiency electrocatalysts.
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Affiliation(s)
- Wenli Zhao
- Department of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Jieyu Yang
- Department of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Fenghua Xu
- Department of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Baicheng Weng
- Department of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
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11
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Ma P, Cao H, Hao Q, Wang R, Liu W, Zuo M, Jia C, Zhang Z, Bao J. Neighbouring Synergy in High-Density Single Ir Atoms on CoGaOOH for Efficient Alkaline Electrocatalytic Oxygen Evolution. Angew Chem Int Ed Engl 2024:e202404418. [PMID: 38576258 DOI: 10.1002/anie.202404418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/06/2024]
Abstract
The catalytic performance of single-atom catalysts was strictly limited by isolated single-atom sites. Fabricating high-density single atoms to realize the synergetic interaction in neighbouring single atoms could optimize the adsorption behaviors of reaction intermediates, which exhibited great potential to break performance limitations and deepen mechanistic understanding of electrocatalysis. However, the catalytic behavior governed by neighbouring single atoms is particularly elusive and has yet to be understood. Herein, we revealed that the synergetic interaction in neighbouring single atoms contributes to superior performance for oxygen evolution relative to isolated Ir single atoms. Neighbouring single atoms was achieved by fabricating high-density single atoms to narrow the distance between single atoms. Electrochemical measurements demonstrated that the Nei-Ir1/CoGaOOH with neighbouring Ir single atoms exhibited a low overpotential of 170 mV at a current density of 10 mA cm-2, and long-durable stability over 2000 h for oxygen evolution. Mechanistic studies revealed that neighbouring single atoms synergetic stabilized the *OOH intermediates via extra hydrogen bonding interactions, thus significantly reducing the reaction energy barriers, as compared to isolated Ir single atoms. The discovery of the synergetic interaction in neighbouring single atoms could offer guidance for the development of efficient electrocatalysts, thus accelerating the world's transition to sustainable energy.
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Affiliation(s)
- Peiyu Ma
- National Synchrotron Radiation Laboratory, Key Laboratory of Precision and Intelligent Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Heng Cao
- National Synchrotron Radiation Laboratory, Key Laboratory of Precision and Intelligent Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Qi Hao
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310030, P. R. China
| | - Ruyang Wang
- National Synchrotron Radiation Laboratory, Key Laboratory of Precision and Intelligent Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Wanting Liu
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry, Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Ming Zuo
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry, Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Chuanyi Jia
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Institute of Applied Physics, Guizhou Education University, Guiyang, Guizhou, 550018, P. R. China
| | - Zhirong Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry, Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jun Bao
- National Synchrotron Radiation Laboratory, Key Laboratory of Precision and Intelligent Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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12
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Jiang Y, Song Z, Qu M, Jiang Y, Luo W, He R. Co─Mn Bimetallic Nanowires by Interfacial Modulation with/without Vacancy Filling as Active and Durable Electrocatalysts for Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400859. [PMID: 38516951 DOI: 10.1002/smll.202400859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/07/2024] [Indexed: 03/23/2024]
Abstract
Active and stable nonnoble electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) are required for water splitting by sustainable electricity. Here, Mn bonded with O and P is incorporated to modulate Co3S4 and Co2P respectively to enhance the catalytic activity and extend the catalyst lifetime. Mn3O4 adjusts the electronic structure of Co3S4 and Co atom fills the oxygen vacancy in Mn3O4. The interfacial interaction endows Co3S4/Mn3O4 to a lower reaction barrier due to ideal binding energies for OER intermediates. Structure stability of active sites and enhanced Co─S bonds by Operando Raman spectroscopy and theoretical calculations reduce the dissolution of Co3S4/Mn3O4, resulting in a lifetime of 500 h at 50 mA cm-2 for OER. The modulation of Co2P by MnP weakens the interaction between Co sites and adsorbed H*, achieving a high activity under a large current for HER. The assembled electrolyzer affords 50 mA cm-2 at 1.58 V and exhibits a lifetime of 350 h at 50 mA cm-2. The calculations disclose the electron interaction for the activity and stability, as well as the enhanced conductivity. The findings develop new avenues toward promoting catalytic activity and stability, making Co─Mn bimetallic nanowires efficient electrocatalysts for nonnoble water electrolyzers.
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Affiliation(s)
- Yimin Jiang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Zekuan Song
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Meijiao Qu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yong Jiang
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Wei Luo
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Rongxing He
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
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13
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Xiao L, Mou S, Dai W, Yang W, Cheng Q, Liu S, Dong F. Identification of Cu(111) as Superior Active Sites for Electrocatalytic NO Reduction to NH 3 with High Single-Pass Conversion Efficiency. Angew Chem Int Ed Engl 2024; 63:e202319135. [PMID: 38185758 DOI: 10.1002/anie.202319135] [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: 12/12/2023] [Revised: 12/28/2023] [Accepted: 01/05/2024] [Indexed: 01/09/2024]
Abstract
Opting for NO as an N source in electrocatalytic NH3 synthesis presents an intriguing approach to tackle energy and environmental challenges. However, blindly pursuing high NH3 synthesis rates and Faradaic efficiency (FE) while ignoring the NO conversion ratio could result in environmental problems. Herein, Cu nanosheets with exposed (111) surface is fabricated and exhibit a NO-to-NH3 yield rate of 371.89 μmol cm-2 h-1 (flow cell) and the highest FE of 93.19±1.99 % (H-type cell). The NO conversion ratio is increased to the current highest value of 63.74 % combined with the development of the flow cell. Additionally, Crystal Orbital Hamilton Population (COHP) clearly reveals that the "σ-π* acceptance-donation" is the essence of the interaction between the Cu and NO as also supported by operando attenuated total reflection infrared spectroscopy (ATR-IRAS) in observing the key intermediate of NO- . This work not only achieves a milestone NO conversion ratio for electrocatalytic NO-to-NH3 , but also proposes a new descriptor that utilizes orbital hybridization between molecules and metal centers to accurately identify the real active sites of catalysts.
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Affiliation(s)
- Lei Xiao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Shiyong Mou
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Weidong Dai
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Weiping Yang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Qin Cheng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Siyuan Liu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Fan Dong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
- Research Center for Carbon-Neutral Environmental & Energy Technology, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
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14
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Zhang X, Zhong H, Zhang Q, Zhang Q, Wu C, Yu J, Ma Y, An H, Wang H, Zou Y, Diao C, Chen J, Yu ZG, Xi S, Wang X, Xue J. High-spin Co 3+ in cobalt oxyhydroxide for efficient water oxidation. Nat Commun 2024; 15:1383. [PMID: 38360821 PMCID: PMC10869355 DOI: 10.1038/s41467-024-45702-4] [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: 08/23/2023] [Accepted: 02/01/2024] [Indexed: 02/17/2024] Open
Abstract
Cobalt oxyhydroxide (CoOOH) is a promising catalytic material for oxygen evolution reaction (OER). In the traditional CoOOH structure, Co3+ exhibits a low-spin state configuration ([Formula: see text]), with electron transfer occurring in face-to-face [Formula: see text] orbitals. In this work, we report the successful synthesis of high-spin state Co3+ CoOOH structure, by introducing coordinatively unsaturated Co atoms. As compared to the low-spin state CoOOH, electron transfer in the high-spin state CoOOH occurs in apex-to-apex [Formula: see text] orbitals, which exhibits faster electron transfer ability. As a result, the high-spin state CoOOH performs superior OER activity with an overpotential of 226 mV at 10 mA cm-2, which is 148 mV lower than that of the low-spin state CoOOH. This work emphasizes the effect of the spin state of Co3+ on OER activity of CoOOH based electrocatalysts for water splitting, and thus provides a new strategy for designing highly efficient electrocatalysts.
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Affiliation(s)
- Xin Zhang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Haoyin Zhong
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Qi Zhang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Qihan Zhang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Chao Wu
- Institute of Sustainability for Chemical, Energy and Environment (ISCE), Agency for Science, Technology and Research (A*STAR), Singapore, 627833, Singapore
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Junchen Yu
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Yifan Ma
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Hang An
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Hao Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Yiming Zou
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Caozheng Diao
- Singapore Synchrotron Light Sources (SSLS), National University of Singapore, Singapore, 117603, Singapore
| | - Jingsheng Chen
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Zhi Gen Yu
- Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), Singapore, 138632, Singapore
| | - Shibo Xi
- Institute of Sustainability for Chemical, Energy and Environment (ISCE), Agency for Science, Technology and Research (A*STAR), Singapore, 627833, Singapore.
| | - Xiaopeng Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore.
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, China.
- State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, Sichuan University, Chengdu, 610065, China.
- Tefusen Semiconductor & Hydrogen Energy Technology (Yunnan) Co., Ltd, Wenshan Zhuang and Miao Autonomous Prefecture, 663200, China.
| | - Junmin Xue
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore.
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15
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Ni Y, Shi D, Mao B, Wang S, Wang Y, Ahmad A, Sun J, Song F, Cao M, Hu C. Under-Coordinated CoFe Layered Double Hydroxide Nanocages Derived from Nanoconfined Hydrolysis of Bimetal Organic Compounds for Efficient Electrocatalytic Water Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302556. [PMID: 37469219 DOI: 10.1002/smll.202302556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/26/2023] [Indexed: 07/21/2023]
Abstract
Hierarchically structured bimetal hydroxides are promising for electrocatalytic oxygen evolution reaction (OER), yet synthetically challenging. Here, the nanoconfined hydrolysis of a hitherto unknown CoFe-bimetal-organic compound (b-MOC) is reported for the controllable synthesis of highly OER active nanostructures of CoFe layered double hydroxide (LDH). The nanoporous structures trigger the nanoconfined hydrolysis in the sacrificial b-MOC template, producing CoFe LDH core-shell octahedrons, nanoporous octahedrons, and hollow nanocages with abundant under-coordinated metal sites. The hollow nanocages of CoFe LDH demonstrate a remarkable turnover frequency (TOF) of 0.0505 s-1 for OER catalysis at an overpotential of 300 mV. It is durable in up to 50 h of electrolysis at step current densities of 10-100 mA cm-2 . Ex situ and in situ X-ray absorption spectroscopic analysis combined with theoretical calculations suggests that under-coordinated Co cations can bind with deprotonated Fe-OH motifs to form OER active Fe-O-Co dimmers in the electrochemical oxidation process, thereby contributing to the good catalytic activity. This work presents an efficient strategy for the synthesis of highly under-coordinated bimetal hydroxide nanostructures. The mechanistic understanding underscores the power of maximizing the amount of bimetal-dimer sites for efficient OER catalysis.
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Affiliation(s)
- Yuanman Ni
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Dier Shi
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Baoguang Mao
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Sihong Wang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yin Wang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Ashfaq Ahmad
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Junliang Sun
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Fang Song
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Minhua Cao
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Changwen Hu
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
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16
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Zhao X, Li Y, Cui Y, Saqib M, Zhang X, Hao R, Zheng Z. Spatiotemporally and Chemically Resolved Imaging of Electrocatalytic Oxygen Evolution on Single Nanoplates of Cobalt-Layered Hydroxide. J Am Chem Soc 2023; 145:20897-20906. [PMID: 37721427 DOI: 10.1021/jacs.3c06062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
Transition metal-layered hydroxides have been extensively studied in order to address the key challenge of slow kinetics of the oxygen evolution reaction (OER). However, how the catalytically active sites are evolved and the corresponding heterogeneous structure-property relationship remain unclear. Herein, using cobalt-layered hydroxide as a representative catalyst, we report a strategy for the comprehensive in situ investigation of the electrocatalytic OER process at the single electrocatalyst level using combined electrochemiluminescence (ECL) and vis-absorption microscopy. The stepwise heterogeneous electrocatalytic responses of single-cobalt hydroxide nanoplates are unveiled with ECL imaging, and the corresponding valence state changes are revealed by vis-absorption imaging. The correlated in situ and ex situ multimode analyses indicate that, during the oxidation process, the Co2+ cations in the tetrahedral sites (CoTd2+) turned into CoTd3+ and even the highly unstable CoTd4+, assisted by the interlayer water in a metastable CoOOH·xH2O phase. Crucially, the CoTd4+ sites are mainly distributed in the inner part of the nanoplates and show superior electrocatalytic properties. The correlative single-particle imaging approach for electrocatalytic process analysis with high spatiotemporal and chemical resolution enables in-depth mechanistic insights to be generated and, in turn, will benefit the rational design of electrocatalysts with enhanced performance.
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Affiliation(s)
- Xin Zhao
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
| | - Yanyan Li
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
- Department of Chemistry, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, 518055 Shenzhen, China
- Key Laboratory of Energy Conversion and Storage Technologies (Ministry of Education), Southern University of Science and Technology, 518055 Shenzhen, China
| | - Yu Cui
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
| | - Muhammad Saqib
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
| | - Xinyu Zhang
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
- Department of Chemistry, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, 518055 Shenzhen, China
- Key Laboratory of Energy Conversion and Storage Technologies (Ministry of Education), Southern University of Science and Technology, 518055 Shenzhen, China
| | - Rui Hao
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
- Research Center for Chemical Biology and Omics Analysis, Southern University of Science and Technology, 518055 Shenzhen, China
| | - Zhiping Zheng
- Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, China
- Department of Chemistry, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, 518055 Shenzhen, China
- Key Laboratory of Energy Conversion and Storage Technologies (Ministry of Education), Southern University of Science and Technology, 518055 Shenzhen, China
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17
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Tian G, Liu X, Song S, Zhang Q, Wang Z, Liu Y, Zheng Z, Cheng H, Dai Y, Huang B, Wang P. In Situ Formation of CoP/Co 3 O 4 Heterojunction for Efficient Overall Water Splitting. Chemistry 2023; 29:e202301478. [PMID: 37332063 DOI: 10.1002/chem.202301478] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 06/20/2023]
Abstract
Electrochemical water splitting is an environmentally friendly and effective energy storage method. However, it is still a huge challenge to prepare non-noble metal based electrocatalysts that possess high activity and long-term durability to realize efficient water splitting. Here, we present a novel method of low-temperature phosphating for preparing CoP/Co3 O4 heterojunction nanowires catalyst on titanium mesh (TM) substrate that can be used for oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and overall water splitting. CoP/Co3 O4 @TM heterojunction showed an excellent catalytic performance and long-term durability in 1.0 M KOH electrolyte. The overpotential of CoP/Co3 O4 @TM heterojunction was only 257 mV at 20 mA cm-2 during the OER process, and it could work stably more than 40 h at 1.52 V versus reversible hydrogen electrode (vs. RHE). During the HER process, the overpotential of CoP/Co3 O4 @TM heterojunction was only 98 mV at -10 mA cm-2 . More importantly, when used as anodic and cathodic electrocatalyst, they achieved 10 mA cm-2 at 1.59 V. The Faradaic efficiencies of OER and HER were 98.4 % and 99.4 %, respectively, outperforming Ru/Ir-based noble metal electrocatalysts and other non-noble metal electrocatalysts for overall water splitting.
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Affiliation(s)
- Guoliang Tian
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Xiaolei Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Shuhong Song
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Qianqian Zhang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Zeyan Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Yuanyuan Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Zhaoke Zheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Hefeng Cheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Ying Dai
- School of Physics, Shandong University, Jinan, 250100, P. R. China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Peng Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
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18
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Feng W, Bu M, Zhang Y, Li Y, Gao X, Liu H. In-Site Grown NiFeOOH Nanosheets Foam Directly as Robust Electrocatalyst for Efficient Urea Oxidation Application. Chem Asian J 2023; 18:e202300362. [PMID: 37246504 DOI: 10.1002/asia.202300362] [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: 04/25/2023] [Revised: 05/25/2023] [Accepted: 05/25/2023] [Indexed: 05/30/2023]
Abstract
In this work, a series of morphology-controlled NiFeOOH nanosheets were directly developed through a one-step mild in-situ acid-etching hydrothermal process. Benefiting from the ultrathin interwoven geometric structure and most favorable electron transport structure, the NiFeOOH nanosheets synthesized under 120 °C (denoted as NiFe_120) exhibited the optimal electrochemical performance for urea oxidation reaction (UOR). An overpotential of merely 1.4 V was required to drive the current density of 100 mA cm-2 , and the electrochemical activity remains no change even after 5000 cycles' accelerated degradation test. Moreover, the assembled urea electrolysis set by using the NiFe_120 as bifunctional catalysts presented a reduced potential of 1.573 V at 10 mA cm-2 , which was much lower than that of overall water splitting. We believe this work will lay a foundation for developing high-performance urea oxidation catalysts for the large-scale production of hydrogen and purification of urea-rich sewage.
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Affiliation(s)
- Wenshuai Feng
- Hunan Provincial Key Laboratory for Super-Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Manman Bu
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Yue Zhang
- Hunan Provincial Key Laboratory for Super-Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Yejun Li
- Hunan Provincial Key Laboratory for Super-Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Xiaohui Gao
- Hunan Provincial Key Laboratory for Super-Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Hongtao Liu
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
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19
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Sheng H, Qu H, Zeng B, Li Y, Xia C, Li C, Cao L, Dong B. Enriched Fe Doped on Amorphous Shell Enable Crystalline@Amorphous Core-Shell Nanorod Highly Efficient Electrochemical Water Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300876. [PMID: 37127875 DOI: 10.1002/smll.202300876] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/10/2023] [Indexed: 05/03/2023]
Abstract
The rational design of efficient and cost-effective electrocatalysts for oxygen evolution reaction (OER) with sluggish kinetics, is imperative to diverse clean energy technologies. The performance of electrocatalyst is usually governed by the number of active sites on the surface. Crystalline/amorphous heterostructure has exhibited unique properties and opens new paradigms toward designing electrocatalysts with abundant active sites for improved performance. Hence, Fe doped Ni-Co phosphite (Fe-NiCoHPi) electrocatalyst with cauliflower-like structure, comprising crystalline@amorphous core-shell nanorod, is reported. The experiments uncover that Fe is enriched in the amorphous shell due to the flexibility of the amorphous component. Further density functional theory calculations indicate that the strong electronic interaction between the enriched Fe in the amorphous shell and crystalline core host at the core-shell interface, leads to balanced binding energies of OER intermediates, which is the origin of the catalyst-activity. Eventually, the Fe-NiCoHPi exhibits remarkable activity, with low overpotentials of only 206 and 257 mV at current density of 15 and 100 mA cm-2 . Unceasing durability over 90 h is achieved, which is superior to the effective phosphate electrocatalysts. Although the applications at high current remain challenges , this work provides an approach for designing advanced OER electrocatalysts for sustainable energy devices.
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Affiliation(s)
- Hongbin Sheng
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Hao Qu
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Biao Zeng
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Yanxin Li
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Chenghui Xia
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Can Li
- Institute of Optoelectronic Materials and Devices, College of Optical and Electronic Technology, China Jiliang University, 256 Xueyuan Street, Hangzhou, Zhejiang, 310018, P. R. China
| | - Lixin Cao
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Bohua Dong
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
- Center for Ocean Carbon Neutrality, Ocean University of China, 1299 Sansha Road, Qingdao, Shandong, 266404, P. R. China
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20
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Peng Y, Gao C, Deng X, Zhao J, Chen Q. Elucidating the Geometric Active Sites for Oxygen Evolution Reaction on Crystalline Iron-Substituted Cobalt Hydroxide Nanoplates. Anal Chem 2023. [PMID: 37490501 DOI: 10.1021/acs.analchem.3c01420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Transition-metal (oxy)hydroxides are among the most active and studied catalysts for the oxygen evolution reaction in alkaline electrolytes. However, the geometric distribution of active sites is still elusive. Here, using the well-defined crystalline iron-substituted cobalt hydroxide as a model catalyst, we reported the scanning electrochemical cell microscopy (SECCM) study of single-crystalline nanoplates, where the oxygen evolution reaction at individual nanoplates was isolated and evaluated independently. With integrated prior- and post-SECCM scanning electron microscopy of the catalyst morphology, correlated structure-activity information of individual electrocatalysts was obtained. Our result reveals that while the active sites are largely located at the edges of the pristine Co(OH)2 nanoplates, the Fe lattice incorporation significantly promotes the basal plane activities. Our approach of correlative imaging provides new insights into the effect of iron incorporation on active site distribution across nano-electrocatalysts.
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Affiliation(s)
- Yu Peng
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Cong Gao
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Xiaoli Deng
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Jiao Zhao
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Qianjin Chen
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
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