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A review of defect engineering in two-dimensional materials for electrocatalytic hydrogen evolution reaction. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63945-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Karmakar A, Sankar SS, Kumaravel S, Madhu R, Mahmoud KH, El-Bahy ZM, Kundu S. Ruthenium-Doping-Induced Amorphization of VS 4 Nanostructures with a Rich Sulfur Vacancy for Enhanced Hydrogen Evolution Reaction in a Neutral Electrolyte Medium. Inorg Chem 2022; 61:1685-1696. [PMID: 35014806 DOI: 10.1021/acs.inorgchem.1c03533] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The generation of pure H2 from a neutral electrolyte solution represents a transformative route with low cost and environmentally friendly nature. However, the complex kinetics of hydrogen evolution reaction (HER) via water electrolysis make its practical application to be difficult. Herein, we have reported Ru-doping-induced formation of VS4 nanostructures with a rich S vacancy for neutral HER in a 0.2 M phosphate buffer solution. The Ru-doped VS4 demands an overpotential value of 160 mV at 10 mA/cm2 current density with a lower catalyst loading of 0.1 mg/cm2, while pristine VS4 demands a 374 mV overpotential with the same mass loading. 60 hours of chronoamperometric study reveals the excellent stability of Ru-doped VS4 materials, which is the highest amount of time ever reported for neutral HER. The marginal degradation of a catalyst under a long-term stability study was confirmed through inductively coupled plasma mass spectrometry (ICP-MS) analysis. The introduction of Ru to the VS4 lattice leads to a 4.35-fold increase in the turnover-frequency values compared to those of bare VS4 nanostructures. The higher HER activity of S-vacancy-enriched VS4 materials is thought to originate through effective water adsorption in S vacancy and Ru3+ sites followed by the dissociation of a H2O molecule, and S22- efficiently converts Had to H2. Also, post-HER characterization reveals that the transformation of some Ru3+ to Ru0 additionally favored the HER by providing a better H adsorption site under a static cathodic potential.
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Affiliation(s)
- Arun Karmakar
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India.,Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Selvasundarasekar Sam Sankar
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India.,Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India.,Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India.,Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Khaled H Mahmoud
- Department of Physics, College of Khurma University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Zeinhom M El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
| | - Subrata Kundu
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India.,Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
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Deng K, Liu P, Liu X, Zheng J, Zhao R, Li H, Tian W, Ji J. Synergistic Coupling of SnS 2 Nanosheet Arrays with Ni/Fe Dual Metal and Ru Nanodots via a Cation Exchange Strategy for Overall Water Splitting. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c03517] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kuan Deng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Peng Liu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Xuesong Liu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jie Zheng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Renjun Zhao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Hongjiao Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Wen Tian
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Junyi Ji
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
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Xu J, Fang C, Zhu Z, Wang J, Yu B, Zhang J. Nanoscale engineering and Mo-doping of 2D ultrathin ReS 2 nanosheets for remarkable electrocatalytic hydrogen generation. NANOSCALE 2020; 12:17045-17052. [PMID: 32785307 DOI: 10.1039/d0nr03693e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two-dimensional (2D) lamellar ReS2 nanosheets are considered a promising electrocatalyst for the hydrogen evolution reaction (HER) but suffer from poor intrinsic conductivity and catalytically inert basal planes. In this work, sub 50 nm hierarchical Mo-doped ReS2 nanospheres consisting of numerous few-layered and defect-rich nanosheets are designed and synthesized as robust and efficient HER catalysts. On the one hand, the small size of the hierarchical structure, the disordered basal planes and the expanded interlayer endow the nanosheets with plentiful defects, thereby resulting in abundant exposed active sites. On the other hand, Mo-doping offers the nanosheets with some electronic benefits of unsaturated electrons, improved intrinsic conductivity, and optimized hydrogen adsorption free energy (ΔGH) of the basal planes. Owing to the synergistic effects, the 10%Mo-ReS2 catalyst exhibits an optimized catalytic activity with striking kinetic metrics of a small Tafel slope of 62 mV dec-1, a low overpotential of 81 mV at 10 mA cm-2, and a long operation stability of 50 h, and its performance is among the best of ReS2-based catalysts. This work provides a new approach for gaining the structural and electronic benefits of ReS2 catalysts by combinational nanoscale engineering and heteroatom doping.
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Affiliation(s)
- Jun Xu
- School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei 230009, P.R. China.
| | - Changji Fang
- School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei 230009, P.R. China.
| | - Zhiqian Zhu
- School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei 230009, P.R. China.
| | - Jingwen Wang
- School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei 230009, P.R. China.
| | - Bansui Yu
- School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei 230009, P.R. China.
| | - Junjun Zhang
- School of Physics and Materials Engineering, Hefei Normal University, Hefei 230601, P.R. China.
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Xie J, Yang X, Xie Y. Defect engineering in two-dimensional electrocatalysts for hydrogen evolution. NANOSCALE 2020; 12:4283-4294. [PMID: 32043515 DOI: 10.1039/c9nr09753h] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The electrocatalytic hydrogen evolution reaction (HER) is an efficient and economic pathway to generate clean hydrogen energy in a sustainable manner. To improve the HER activity of Earth-abundant catalysts, reducing the dimension of materials is an effective strategy, and in this context two-dimensional (2D) materials have received substantial research attention owing to their large surface area and 2D charge transport channels. However, the thermodynamically stable basal surface of 2D catalysts is usually inactive in catalysis, which significantly impedes further optimization of the 2D HER catalysts. In this Minireview, we highlight in detail that defect engineering in 2D catalysts could bring multiple benefits in improving the HER activity. From the point of view of kinetics, defect sites could serve as active sites for catalyzing the HER process directly, and the introduction of defect structures may result in the optimization of electronic structures of the catalysts, thereby facilitating the HER process. Besides, for catalytically inert substrate materials, the defect sites could act as anchoring sites for catalyst loading, thus realizing efficient HER performance with the aid of enhanced electric conductivity. We anticipated that this Minireview could provide useful guidance for designing advanced HER catalysts in the future.
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Affiliation(s)
- Junfeng Xie
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes (Ministry of Education), Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan, Shandong 250014, P. R. China
| | - Xueying Yang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes (Ministry of Education), Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan, Shandong 250014, P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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Liu T, Fang C, Yu B, You Y, Niu H, Zhou R, Zhang J, Xu J. Vanadium-doping in interlayer-expanded MoS2 nanosheets for the efficient electrocatalytic hydrogen evolution reaction. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00135j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Synergistic modulations of vanadium doping, interlayer expansion and hybrid 1T&2H phases of few-layered MoS2 nanosheets are realized to gain structural and electronic benefits for enhanced hydrogen evolution reaction performance.
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Affiliation(s)
- Tong Liu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Changji Fang
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Bansui Yu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Yu You
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Haihong Niu
- School of Electrical Engineering and Automation
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Ru Zhou
- School of Electrical Engineering and Automation
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Junjun Zhang
- School of Physics and Materials Engineering
- Hefei Normal University
- Hefei 230601
- P.R. China
- Department of Materials Science & Engineering
| | - Jun Xu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
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Zhao Y, Mao G, Huang C, Cai P, Cheng G, Luo W. Decorating WSe2 nanosheets with ultrafine Ru nanoparticles for boosting electrocatalytic hydrogen evolution in alkaline electrolytes. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00293f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultrafine Ru nanoparticle decorated WSe2 nanosheets have been synthesized through a colloidal synthetic approach, which exhibit superior hydrogen evolution reaction (HER) performance in alkaline media due to the interfacial synergy effect.
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Affiliation(s)
- Yuanmeng Zhao
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Guixiang Mao
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | | | - Ping Cai
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Gongzhen Cheng
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Wei Luo
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
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Xu J, Zhu Y, Yu B, Fang C, Zhang J. Metallic 1T-VS2 nanosheets featuring V2+ self-doping and mesopores towards an efficient hydrogen evolution reaction. Inorg Chem Front 2019. [DOI: 10.1039/c9qi01142k] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Metallic 1T-VS2 nanosheets featuring V2+-doping and plenty of mesopores have abundant defects and high conductivity and exhibit superior catalytic activity for electrochemical water splitting.
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Affiliation(s)
- Jun Xu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Yuan Zhu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Bansui Yu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Changji Fang
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Junjun Zhang
- School of Physics and Materials Engineering
- Hefei Normal University
- Hefei 230601
- P.R. China
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