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Direct Vapor Deposition Growth of 1T' MoTe2on Carbon Cloth for Electrocatalytic Hydrogen Evolution

Journal Article


Abstract


  • Phase engineering has a profound effect on the chemical bonding and electric configuration, which play significant roles in regulating the activities of catalysts. The metallic phases of transition-metal dichalcogenides (TMDs) have been proposed to show more excellent performance in electrocatalysis over their semiconductor phase; however, the controllable phase engineering for these compounds remains a challenge. In this work, filmlike 1T′ MoTe2 (F-1T′ MoTe2), filmlike 1T′/2H MoTe2, porous 1T′ MoTe2, small granular 1T′ MoTe2, and large granular 1T′ MoTe2 were successfully synthesized on a flexible carbon cloth (CC) substrate with 3D network structure by chemical vapor deposition (CVD). The high activity of the as-synthesized F-1T′ MoTe2/CC electrode for HER in 1 M H2SO4 solution was demonstrated by the small onset overpotential of -230.7 mV, a low Tafel slope of 127.1 mV dec-1, and robust electrochemical durability. The enhanced electrocatalytic activity and stability of F-1T′ MoTe2/CC benefit from excellent catalytically active sites and remarkable conductivity of the F-1T′ MoTe2. The results demonstrate an efficient route to designing and constructing metallic-phase TMD catalysts for high-performance electrocatalytic devices.

UOW Authors


  •   Ren, Long (external author)

Publication Date


  • 2020

Citation


  • Lu, D., Ren, X., Ren, L., Xue, W., Liu, S., Liu, Y., . . . Zhong, J. (2020). Direct Vapor Deposition Growth of 1T' MoTe2on Carbon Cloth for Electrocatalytic Hydrogen Evolution. ACS Applied Energy Materials, 3(4), 3212-3219. doi:10.1021/acsaem.9b01589

Scopus Eid


  • 2-s2.0-85076254666

Web Of Science Accession Number


Start Page


  • 3212

End Page


  • 3219

Volume


  • 3

Issue


  • 4

Abstract


  • Phase engineering has a profound effect on the chemical bonding and electric configuration, which play significant roles in regulating the activities of catalysts. The metallic phases of transition-metal dichalcogenides (TMDs) have been proposed to show more excellent performance in electrocatalysis over their semiconductor phase; however, the controllable phase engineering for these compounds remains a challenge. In this work, filmlike 1T′ MoTe2 (F-1T′ MoTe2), filmlike 1T′/2H MoTe2, porous 1T′ MoTe2, small granular 1T′ MoTe2, and large granular 1T′ MoTe2 were successfully synthesized on a flexible carbon cloth (CC) substrate with 3D network structure by chemical vapor deposition (CVD). The high activity of the as-synthesized F-1T′ MoTe2/CC electrode for HER in 1 M H2SO4 solution was demonstrated by the small onset overpotential of -230.7 mV, a low Tafel slope of 127.1 mV dec-1, and robust electrochemical durability. The enhanced electrocatalytic activity and stability of F-1T′ MoTe2/CC benefit from excellent catalytically active sites and remarkable conductivity of the F-1T′ MoTe2. The results demonstrate an efficient route to designing and constructing metallic-phase TMD catalysts for high-performance electrocatalytic devices.

UOW Authors


  •   Ren, Long (external author)

Publication Date


  • 2020

Citation


  • Lu, D., Ren, X., Ren, L., Xue, W., Liu, S., Liu, Y., . . . Zhong, J. (2020). Direct Vapor Deposition Growth of 1T' MoTe2on Carbon Cloth for Electrocatalytic Hydrogen Evolution. ACS Applied Energy Materials, 3(4), 3212-3219. doi:10.1021/acsaem.9b01589

Scopus Eid


  • 2-s2.0-85076254666

Web Of Science Accession Number


Start Page


  • 3212

End Page


  • 3219

Volume


  • 3

Issue


  • 4