Hydrogen evolution reaction catalyst with high catalytic activity by interplay between organic molecules and transition metal dichalcogenide monolayers

Adofo, Laud Anim; Kim, Hyung Jin; Agyapong-Fordjour, Frederick Osei-Tutu; Nguyen, Huong Thi Thanh; Jin, Jeong Won; Kim, Yong In; Kim, Seon Je; Kim, Jung Ho; Boandoh, Stephen; Choi, Soo Ho; Lee, Su Jin; Yun, Seok Joon; Kim, Young Min; Kim, Soo Min; Han, Young‐Kyu; Kim, Ki Kang

doi:10.1016/j.mtener.2022.100976

Cited by 6 publications

(2 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5a). [49][50][51][52][53][54][55] Therefore, the catalytic performance of these MoS 2 nanospheres in HER was systematically evaluated. 56 First, electrochemical impedance spectroscopy was used to assess the electrocatalytic activity.…”

Section: Applications Of the Mos Nanospheresmentioning

confidence: 99%

Large-Scale Synthesis of Transition Metal Dichalcogenides at Atmospheric Pressure in Air

Liu,

Zhang,

Pan

et al. 2023

Preprint

View full text Add to dashboard Cite

Transition metal dichalcogenides (TMDs) have achieved considerable attention in recent years because of their excellent chemical and physical properties. However, conventional synthesis methods including chemical vapor deposition and wet-chemical synthesis still face many challenges in mass production. Here, we develop a dynamic salt capsulation method to massively prepare TMDs (MoS2, WS2) at atmospheric pressure in air with a high yield more than 95%. With the help of binary salts (KCl, KBr), TMDs can be easily obtained in air for a short reaction time of one hour at a low-temperature of 400 ℃. The as-synthesized MoS2 powders show flower-like nanospheres, which exhibit an excellent catalytic performance in hydrogen evolution reactions, and show a good electrochemical performance as anode materials in lithium-ion batteries. This work provides a simple method to synthesize high quality and large quantities of TMDs combined with low cost and time savings, which has a great potential to integrate into industrial production.

show abstract

Section: Applications Of the Mos Nanospheresmentioning

confidence: 99%

Large-Scale Synthesis of Transition Metal Dichalcogenides at Atmospheric Pressure in Air

Liu,

Zhang,

Pan

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…[10][11][12] Recently, most efforts have been devoted to the development of non-noble metal catalysts including metal carbides, 13 metal nitrides, 14,15 metal phosphides, [16][17][18][19][20] metal sulfides, 21,22 and metal selenides for boosting the HER or OER performance. 23 In particular, transition metal phosphides (TMPs) such as MoP, [24][25][26][27] Ni 2 P, 28,29 CoP, 30,31 and FeP, [31][32][33] have been considered as promising alternative catalysts for water electrolysis due to their low fabrication cost, superior electronic conductivity and outstanding stability in both acid and alkaline electrolytes. Among them, transition metal element (Fe and Ni)-based phosphides show excellent activity and stability in different solutions.…”

Section: Introductionmentioning

confidence: 99%

Hollow metal composite phosphides derived from MOFs as highly efficient and durable bifunctional electrocatalysts for water splitting

Dang

Xie

et al. 2023

New J. Chem.

View full text Add to dashboard Cite

show abstract

1T’ Re_xMo₁₋_xS₂–2H MoS₂ Lateral Heterojunction for Enhanced Hydrogen Evolution Reaction Performance

Nguyen

Adofo

Yang

et al. 2022

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

The imperfect interfaces between 2D transition metal dichalcogenides (TMDs) are suitable for boosting the hydrogen evolution reaction (HER) during water electrolysis. Here, the improved catalytic activity at the spatial heterojunction between 1T' Re x Mo 1−x S 2 and 2H MoS 2 is reported. Atomic-scale electron microscopy confirms that the heterojunction is constructed by an in-situ two-step growth process through chemical vapor deposition. Electrochemical microcell measurements demonstrate that the 1T' Re x Mo 1−x S 2 -2H MoS 2 lateral heterojunction exhibits the best HER catalytic performance among all TMD catalysts with an overpotential of ≈84 mV at 10 mA cm −2 current density and 58 mV dec −1 Tafel slope. Kelvin probe force microscopy shows ≈40 meV as the work function difference between 2H MoS 2 and 1T' Re x Mo 1−x S 2 , facilitating the electron transfer from 2H MoS 2 to 1T' Re x Mo 1−x S 2 at the heterojunction. Firstprinciples calculations reveal that Mo-rich heterojunctions with high structural stability are formed, and the HER performance is improved with the combination of increased density of states near the Fermi level and optimal ΔG H* as low as 0.07 eV. Those synergetic effects with many electrons and active sites with optimal ΔG H* improve HER performance at the heterojunction. These results provide new insights into understanding the role of the heterojunction for HER.

show abstract

Hydrogen evolution reaction catalyst with high catalytic activity by interplay between organic molecules and transition metal dichalcogenide monolayers

Cited by 6 publications

References 51 publications

Large-Scale Synthesis of Transition Metal Dichalcogenides at Atmospheric Pressure in Air

Large-Scale Synthesis of Transition Metal Dichalcogenides at Atmospheric Pressure in Air

Hollow metal composite phosphides derived from MOFs as highly efficient and durable bifunctional electrocatalysts for water splitting

1T’ Re_xMo₁₋_xS₂–2H MoS₂ Lateral Heterojunction for Enhanced Hydrogen Evolution Reaction Performance

Contact Info

Product

Resources

About

Hydrogen evolution reaction catalyst with high catalytic activity by interplay between organic molecules and transition metal dichalcogenide monolayers

Cited by 6 publications

References 51 publications

Large-Scale Synthesis of Transition Metal Dichalcogenides at Atmospheric Pressure in Air

Large-Scale Synthesis of Transition Metal Dichalcogenides at Atmospheric Pressure in Air

Hollow metal composite phosphides derived from MOFs as highly efficient and durable bifunctional electrocatalysts for water splitting

1T’ RexMo1−xS2–2H MoS2 Lateral Heterojunction for Enhanced Hydrogen Evolution Reaction Performance

Contact Info

Product

Resources

About

1T’ Re_xMo₁₋_xS₂–2H MoS₂ Lateral Heterojunction for Enhanced Hydrogen Evolution Reaction Performance