Electrochemical exfoliation of ultrathin ternary molybdenum sulfoselenide nanosheets to boost the energy-efficient hydrogen evolution reaction

Nanoscale ◽  
2019 ◽  
Vol 11 (35) ◽  
pp. 16200-16207 ◽  
Author(s):  
Jincheng Si ◽  
Hanlin Chen ◽  
Chaojun Lei ◽  
Yange Suo ◽  
Bin Yang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Energy Efficient ◽  
Aqueous Electrolyte ◽  
Electrochemical Exfoliation

Ultrathin ternary molybdenum sulfoselenide nanosheets were prepared by an electrochemical exfoliation approach in a non-aqueous electrolyte for the energy-efficient hydrogen evolution reaction.

Energy-efficient electrolytic hydrogen generation using a Cu3P nanoarray as a bifunctional catalyst for hydrazine oxidation and water reduction

2017 ◽  
Vol 4 (3) ◽  
pp. 420-423 ◽  
Author(s):  
Meng Liu ◽  
Rong Zhang ◽  
Lixue Zhang ◽  
Danni Liu ◽  
Shuai Hao ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Energy Efficient ◽  
Oxidation Reaction ◽  
Hydrogen Generation ◽  
Bifunctional Catalyst ◽  
Water Reduction ◽  
Hydrazine Oxidation ◽  
Electrolytic Hydrogen

A Cu3P nanoarray acts as a durable bifunctional catalyst for hydrogen evolution reaction and hydrazine oxidation reaction with 100 mA cm−2at 0.72 V in 1.0 M KOH.

Potential Dependent Electrochemical Exfoliation of NiPS3 and Implications for Hydrogen Evolution Reaction

2020 ◽  
Vol 3 (12) ◽  
pp. 11992-11999
Author(s):  
Jan Luxa ◽  
Štěpán Cintl ◽  
Lucie Spejchalová ◽  
Jeng-Yu Lin ◽  
Zdeněk Sofer
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrochemical Exfoliation

Facile Synthesis of CoSe2 Nanoparticles and their Electrocatalytic Performance for Hydrogen Evolution Reaction

2016 ◽  
Vol 852 ◽  
pp. 916-920 ◽  
Author(s):  
Hong Xue Qi ◽  
Yuan Qiang Song ◽  
Zhong Ping Liu ◽  
Lan Xiang Ji ◽  
Jian Guo Deng
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Energy Efficient ◽  
Average Diameter ◽  
Facile Synthesis ◽  
One Pot ◽  
Metal Free ◽  
Highly Active ◽  
Electrocatalytic Performance ◽  
Free Hydrogen

For more energy-efficient and economical hydrogen production, highly active noble metal-free hydrogen evolution catalysts are a priority for all. Herein, we report a facile one-pot hydrothermal synthesis of CoSe2 nanoparticles with their electrocatalytic performance for hydrogen evolution reaction. The synthesized CoSe2 nanoparticles have an average diameter of 50-70 nm with a uniform distribution. They also exhibited good electrocatalytic performance for hydrogen evolution reaction with the onset overpotential and Tafel slope of 140 mV and 95 mV/dec, respectively. The results provide a facile and effective way for the exploration of efficient Co-based HER catalysts.

Direct deposition of MoSe2 nanocrystals onto conducting substrates: towards ultra-efficient electrocatalysts for hydrogen evolution

2017 ◽  
Vol 5 (26) ◽  
pp. 13364-13372 ◽  
Author(s):  
Dijo Damien ◽  
Athira Anil ◽  
Dipanwita Chatterjee ◽  
M. M. Shaijumon
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Electrochemical Exfoliation ◽  
Direct Deposition

Monodisperse single/few-layered MoSe2 nanocrystals are directly deposited onto conducting substrates, through electrochemical exfoliation of bulk MoSe2, which exhibit remarkable electrocatalytic activity for the hydrogen evolution reaction.

N-doped WS2 nanosheets: a high-performance electrocatalyst for the hydrogen evolution reaction

2016 ◽  
Vol 4 (29) ◽  
pp. 11234-11238 ◽  
Author(s):  
Changqi Sun ◽  
Jingyan Zhang ◽  
Ji Ma ◽  
Peitao Liu ◽  
Daqiang Gao ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Energy Efficient ◽  
High Performance ◽  
Electrochemical Water Splitting ◽  
Ws2 Nanosheets

Non-Pt-based catalysts are urgently required to produce abundant hydrogen in electrochemical water splitting, in order to make the hydrogen evolution reaction (HER) feasible and energy efficient.

scholarly journals Water- and acid-stable self-passivated dihafnium sulfide electride and its persistent electrocatalytic reaction

2020 ◽  
Vol 6 (23) ◽  
pp. eaba7416
Author(s):  
Se Hwang Kang ◽  
Joonho Bang ◽  
Kyungwha Chung ◽  
Chandani N. Nandadasa ◽  
Gyeongtak Han ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Electric Fields ◽  
Hydrogen Evolution Reaction ◽  
Energy Efficient ◽  
Water Molecules ◽  
Acid Solutions ◽  
Excess Electrons ◽  
Acid Stable ◽  
Electrocatalytic Reaction

Electrides have emerged as promising materials with exotic properties, such as extraordinary electron-donating ability. However, the inevitable instability of electrides, which is caused by inherent excess electrons, has hampered their widespread applications. We report that a self-passivated dihafnium sulfide electride ([Hf2S]2+∙2e−) by double amorphous layers exhibits a strong oxidation resistance in water and acid solutions, enabling a persistent electrocatalytic hydrogen evolution reaction. The naturally formed amorphous Hf2S layer on the cleaved [Hf2S]2+∙2e− surface reacts with oxygen to form an outermost amorphous HfO2 layer with ~10-nm thickness, passivating the [Hf2S]2+∙2e− electride. The excess electrons in the [Hf2S]2+∙2e− electride are transferred through the thin HfO2 passivation layer to water molecules under applied electric fields, demonstrating the first electrocatalytic reaction with excellent long-term sustainability and no degradation in performance. This self-passivation mechanism in reactive conditions can advance the development of stable electrides for energy-efficient applications.

Highly Effective Electrochemical Exfoliation of Ultrathin Tantalum Disulfide Nanosheets for Energy-Efficient Hydrogen Evolution Electrocatalysis

2020 ◽  
Vol 12 (22) ◽  
pp. 24675-24682 ◽  
Author(s):  
Hanlin Chen ◽  
Jincheng Si ◽  
Siliu Lyu ◽  
Tianyu Zhang ◽  
Zhongjian Li ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Energy Efficient ◽  
Electrochemical Exfoliation ◽  
Highly Effective

Partial sulfur vacancy created by carbon-nitrogen deposition of MoS2 for high-performance overall electrocatalytic water splitting

Nanoscale ◽  
2021 ◽  
Author(s):  
Wenxia Chen ◽  
Wei Wei ◽  
Kefeng Wang ◽  
Jinhai Cui ◽  
Xingwang Zhu ◽  
...  
Keyword(s):  
Nitrogen Deposition ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Energy Efficient ◽  
High Performance ◽  
Efficient Solution ◽  
Hydrogen Energy ◽  
Sulfur Vacancy ◽  
Bifunctional Electrocatalysts

Electrocatalytic water splitting is a promising energy-efficient solution to obtain clean hydrogen energy. Bifunctional electrocatalysts made of cheap and abundant elements and suitable for both the hydrogen evolution reaction (HER)...

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