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Effect of Polymer Addition on the Structure and Hydrogen Evolution Reaction Property of Nanoflower-Like Molybdenum Disulfide. METALS 2015. [DOI: 10.3390/met5041829] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chia X, Ambrosi A, Sofer Z, Luxa J, Pumera M. Catalytic and charge transfer properties of transition metal dichalcogenides arising from electrochemical pretreatment. ACS NANO 2015; 9:5164-79. [PMID: 25894369 DOI: 10.1021/acsnano.5b00501] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Layered transition metal dichalcogenides (TMDs) have been the center of attention in the scientific community due to their properties that can be tapped on for applications in electrochemistry and hydrogen evolution reaction (HER) catalysis. We report on the effect of electrochemical treatment of exfoliated MoS2, WS2, MoSe2 and WSe2 nanosheets toward the goal of activating the electrochemical and HER catalytic properties of the TMDs. In particular, electrochemical activation of the heterogeneous electron transfer (HET) abilities of MoS2, MoSe2 and WSe2 is achieved via reductive treatments at identified reductive potentials based on their respective inherent electrochemistry. Comparing all TMDs, the charge transfer activation is most accentuated in MoSe2 and can be concluded that Mo metal and Se chalcogen type are more susceptible to electrochemical activation than W metal and S chalcogen type. With regards to the HER, we show that while MoS2 displayed enhanced performance when subjected to electrochemical reduction, WS2 fared worse upon oxidation. On the other hand, the HER performance of MoSe2 and WSe2 is independent of electrochemical redox treatment. We can conclude therefore that for the HER, S-containing TMDs are more responsive to redox treatment than compounds with the Se chalcogen. Our findings are beneficial toward understanding the electrochemistry of TMDs and the extent to which activation by electrochemical means is effective. In turn, when such knowledge is administered aptly, it will be promising for electrochemical uses.
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Affiliation(s)
| | | | - Zdenek Sofer
- ‡Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 166 28, Prague 6, Czech Republic
| | - Jan Luxa
- ‡Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 166 28, Prague 6, Czech Republic
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Waugh-Type NiMo Heteropolycompounds as More Effective Precursors of Hydrodesulfurization Catalyst. Catal Letters 2014. [DOI: 10.1007/s10562-014-1326-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Effect of Annealing Temperature on Co–MoS2 Nanosheets for Hydrodesulfurization of Dibenzothiophene. Catal Letters 2013. [DOI: 10.1007/s10562-013-1143-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wu Z, Fang B, Wang Z, Wang C, Liu Z, Liu F, Wang W, Alfantazi A, Wang D, Wilkinson DP. MoS2 Nanosheets: A Designed Structure with High Active Site Density for the Hydrogen Evolution Reaction. ACS Catal 2013. [DOI: 10.1021/cs400384h] [Citation(s) in RCA: 298] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhuangzhi Wu
- Key Laboratory of
Ministry of
Education for Non-Ferrous Materials Science and Engineering, School
of Materials Science and Engineering, Central South University, Changsha
410083, China
- School of Metallurgical Science
and Engineering, Central South University, Changsha 410083, China
| | - Baizeng Fang
- Department of Chemical & Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BC, Canada V6T 1Z3
- Clean Energy Research Center,
2360 East Mall, Vancouver, BC, Canada V6T 1Z3
| | - Zhiping Wang
- Key Laboratory of
Ministry of
Education for Non-Ferrous Materials Science and Engineering, School
of Materials Science and Engineering, Central South University, Changsha
410083, China
| | - Changlong Wang
- Key Laboratory of
Ministry of
Education for Non-Ferrous Materials Science and Engineering, School
of Materials Science and Engineering, Central South University, Changsha
410083, China
| | - Zhihong Liu
- School of Metallurgical Science
and Engineering, Central South University, Changsha 410083, China
| | - Fangyang Liu
- School of Metallurgical Science
and Engineering, Central South University, Changsha 410083, China
| | - Wei Wang
- Department of Materials Engineering,
University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - Akram Alfantazi
- Department of Materials Engineering,
University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - Dezhi Wang
- Key Laboratory of
Ministry of
Education for Non-Ferrous Materials Science and Engineering, School
of Materials Science and Engineering, Central South University, Changsha
410083, China
| | - David P. Wilkinson
- Department of Chemical & Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BC, Canada V6T 1Z3
- Clean Energy Research Center,
2360 East Mall, Vancouver, BC, Canada V6T 1Z3
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Yin H, Zhou T, Liu Y, Chai Y, Liu C. NiMo/Al2O3 catalyst containing nano-sized zeolite Y for deep hydrodesulfurization and hydrodenitrogenation of diesel. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/s1003-9953(10)60204-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Synthesis and hydrodesulfurization activity of unsupported Ni–Mo sulfide from nickel/cetyltrimethylammonium thiomolybdates. REACTION KINETICS MECHANISMS AND CATALYSIS 2011. [DOI: 10.1007/s11144-010-0272-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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