High proportion of 1 T phase MoS2 prepared by a simple solvothermal method for high-efficiency electrocatalytic hydrogen evolution

Li, Jingdong; Listwan, Arthur; Liang, Jianxing; Shi, Feng; Li, Kan; Jia, Jinping

doi:10.1016/j.cej.2021.130100

Cited by 41 publications

(16 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the exploration of efficient and economical electrocatalysts for water decomposition has become a popular topic in the field of materials science in recent years. Specifically, oxides, , sulfides, − selenides, − phosphides, − carbides, , and nitrides , of transition metals, for example, Fe, Co, and Ni, have been proposed to be alternative electrocatalysts for water decomposition.…”

Section: Introductionmentioning

confidence: 99%

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

et al. 2021

View full text Add to dashboard Cite

Recently, developing economical electrocatalysts with high performance in water decomposition has become a research hotspot. Herein, two kinds of cobalt-hybridized Cu 3 P nanostructure array electrocatalysts (including highly mesoporous 2D nanosheets and sugar gourd-like 1D nanowires) were controllably grown on a nickel foam substrate through a simple hydrothermal method combined with a subsequent phosphating treatment method. An electrocatalytic test indicated that the as-prepared 2D nanosheet array exhibited excellent activity and stability toward hydrogen evolution reaction under alkaline conditions, which offered a low overpotential of 99 mV at 10 mA/cm 2 and a small Tafel slope of 70.4 mV/dec, whereas a competitive overpotential of 272 mV was required for oxygen evolution reaction. In addition, the 2D nanosheet array delivered a low cell voltage of 1.66 V at 10 mA/cm 2 in a symmetric two-electrode system, implying its huge potential in overall water decomposition. The electrocatalytic performance is superior to the as-prepared 1D nanowire array and most of the Cu 3 P-related electrocatalysts previously reported. Experimental measurements and first-principles calculations show that the excellent performance of the 2D nanosheet array can be attributed to its unique 2D mesoporous structure and hybridization of cobalt, which not only provide a large electrochemically active surface and fast electrocatalytic reaction kinetics but also weaken the binding strength of electrocatalytic reaction intermediates. The present study provides a simple and controllable approach to synthesize Cu 3 P-based bimetallic phosphide nanostructures, which can be used as boosting Janus electrocatalysts for water decomposition.

show abstract

Section: Introductionmentioning

confidence: 99%

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

et al. 2021

View full text Add to dashboard Cite

show abstract

“…[5][6][7][8][9][10][11] For proper hydrogen adsorption/desorption strength and good electrochemical stability, 12,13 molybdenum disulde (MoS 2 ), as a promising electrocatalytic hydrogen evolution catalyst, has been widely studied. [14][15][16] As we know, MoS 2 has several different crystal structures. 17 Amongst them, the 2H phase (2H-MoS 2 ) is a semiconductor phase with an indirect band gap of 1.29 eV and the 1T phase is a metal phase (1T-MoS 2 ).…”

Section: Introductionmentioning

confidence: 99%

“…[18][19][20][21][22] Therefore, 1T-MoS 2 is more preferred for HER. 16,21,23,24 Phase engineering as an effective route to tune the phase content of MoS 2 is used to optimize the hydrogen evolution performance. [25][26][27] 1T-MoS 2 , however, is thermodynamically metastable phase and easily transforms to 2H-MoS 2 , which limits the investigations on MoS 2 catalyst for HER.…”

Section: Introductionmentioning

confidence: 99%

Highly stable 1T-MoS₂ by magneto-hydrothermal synthesis with Ru modification for efficient hydrogen evolution reaction

Zhu

Wang

et al. 2022

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

“…In recent years, molybdenum disulfide (MoS 2 ) has been proposed as a competitive HER catalyst due to its cost-effectiveness, electrochemical stability, and low free energy of hydrogen absorption. − Different stacking methods cause MoS 2 to possess different phases, including 2H phase, 1T phase, etc., that exhibit distinct electrochemical properties. − The electronic conductivity of 1T-phase MoS 2 is much higher than that of 2H-phase MoS 2 , which makes 1T-phase MoS 2 a more promising HER catalyst. − Currently, 1T-phase MoS 2 can be prepared through alkali-metal intercalation doping, substrate modification, covalent fictionalization, electron beam irradiation methods, etc. − However, the obtained 1T-phase MoS 2 prepared with the aforementioned methods lacks the rich edge active sites, leading to its unsatisfactory HER activity. − Besides, the intrinsic activity of 1T-phase MoS 2 has also played an essential role in the HER performance, and many efforts have been made to boost the intrinsic activity by modifying the electronic configurations with various metal atoms, such as Ni, Co, Al, etc., that can better balance the binding strength between the catalyst and hydrogen intermediates. − However, until now, metal-atom-modified 1T-phase MoS 2 with rich edges has rarely been reported.…”

Section: Introductionmentioning

confidence: 99%

Cobalt and Aluminum Co-Optimized 1T Phase MoS₂ with Rich Edges for Robust Hydrogen Evolution Activity

Jian

Kang

Qiao

et al. 2022

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Water electrolysis is an effective method of obtaining hydrogen energy, which is the key to achieve the global “carbon neutrality” goal. Molybdenum disulfide (MoS2) with a layered structure is considered to be a competitive hydrogen evolution reaction (HER) catalyst. However, until now, metal-atom-modified 1T-phase MoS2 with rich edge active sites has rarely been reported. Herein, we first report Co and Al co-optimized 1T-phase MoS2 (CA-1T-MoS2) with rich edge active sites using a simple one-step ball-milling method. The CA-1T-MoS2 exhibits an outstanding HER performance with an overpotential value of 102 mV at 10 mA cm–2 in 1.0 M KOH. The density functional theory (DFT) results prove that the introduction of Co and Al atoms on the rich edges of 1T-MoS2 provides rich active sites, improves the electrical conductivity, accelerates the distortion of H2O to generate H* and reduces the adsorption energy of hydrogen. Thus, CA-1T-MoS2 exhibits a prominent HER performance. This work provides a novel strategy for the simple preparation of metal-atom-modified 2D transition-metal sulfide HER catalysts with rich edge active sites.

show abstract

High proportion of 1 T phase MoS2 prepared by a simple solvothermal method for high-efficiency electrocatalytic hydrogen evolution

Cited by 41 publications

References 65 publications

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Highly stable 1T-MoS₂ by magneto-hydrothermal synthesis with Ru modification for efficient hydrogen evolution reaction

Cobalt and Aluminum Co-Optimized 1T Phase MoS₂ with Rich Edges for Robust Hydrogen Evolution Activity

Contact Info

Product

Resources

About

High proportion of 1 T phase MoS2 prepared by a simple solvothermal method for high-efficiency electrocatalytic hydrogen evolution

Cited by 41 publications

References 65 publications

Highly Mesoporous Cobalt-Hybridized 2D Cu3P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Highly Mesoporous Cobalt-Hybridized 2D Cu3P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Highly stable 1T-MoS2 by magneto-hydrothermal synthesis with Ru modification for efficient hydrogen evolution reaction

Cobalt and Aluminum Co-Optimized 1T Phase MoS2 with Rich Edges for Robust Hydrogen Evolution Activity

Contact Info

Product

Resources

About

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Highly Mesoporous Cobalt-Hybridized 2D Cu₃P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

Highly stable 1T-MoS₂ by magneto-hydrothermal synthesis with Ru modification for efficient hydrogen evolution reaction

Cobalt and Aluminum Co-Optimized 1T Phase MoS₂ with Rich Edges for Robust Hydrogen Evolution Activity