Morphology-controlled growth of large-area PtSe2 films for enhanced hydrogen evolution reaction

Rare Metals ◽  
2021 ◽  
Author(s):  
Rui Hao ◽  
Qing-Liang Feng ◽  
Xiao-Jian Wang ◽  
Yi-Chen Zhang ◽  
Kan-She Li
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Controlled Growth ◽  
Large Area

Three-dimension Cross-linked Co-MoS2 Catalyst on Carbon Cloth for Efficient Hydrogen Evolution Reaction

2021 ◽  
Author(s):  
Yan Xiao ◽  
Jing Yao ◽  
Tianze Zhang ◽  
Xinzhi Ma ◽  
Dexin Xu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Carbon Cloth ◽  
Three Dimension ◽  
Large Area ◽  
The Poor ◽  
Poor Population ◽  
Mos2 Catalyst

MoS2-based materials are promising hydrogen evolution reaction (HER) electrocatalysts. However, their HER activities are restrained by the poor population of HER activated edge centres, the large area exposed HER inert...

Controlled growth of vertical 3D MoS2(1−x)Se2x nanosheets for an efficient and stable hydrogen evolution reaction

2016 ◽  
Vol 4 (46) ◽  
pp. 18060-18066 ◽  
Author(s):  
Xiaoshuang Chen ◽  
Zhiguo Wang ◽  
Yunfeng Qiu ◽  
Jia Zhang ◽  
Guangbo Liu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Controlled Growth

Vertically oriented and component-controllable 3D MoS2(1−x)Se2x nanosheets were grown via a CVD technique. Mo(S0.53Se0.47)2 alloy nanosheets exhibited the best HER performance.

Synthesis of germanium–platinum nanoparticles as high-performance catalysts for spray-deposited large-area dye-sensitized solar cells (DSSC) and the hydrogen evolution reaction (HER)

Nanoscale ◽  
2018 ◽  
Vol 10 (35) ◽  
pp. 16657-16666 ◽  
Author(s):  
Suh-Ciuan Lim ◽  
Ming-Cheng Hsiao ◽  
Ming-De Lu ◽  
Yung-Liang Tung ◽  
Hsing-Yu Tuan
Keyword(s):  
Solar Cells ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Platinum Nanoparticles ◽  
High Performance ◽  
Catalytic Properties ◽  
Dye Sensitized Solar Cells ◽  
Large Area ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The first example of the synthesis of GePt nanoparticles is demonstrated. They exhibited high-performance catalytic properties as DSSC and HER electrodes.

Physical vapor deposition of amorphous MoS2 nanosheet arrays on carbon cloth for highly reproducible large-area electrocatalysts for the hydrogen evolution reaction

2015 ◽  
Vol 3 (38) ◽  
pp. 19277-19281 ◽  
Author(s):  
Xing Zhang ◽  
Yun Zhang ◽  
Bin-Bin Yu ◽  
Xing-Liang Yin ◽  
Wen-Jie Jiang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Carbon Cloth ◽  
Large Area ◽  
Nanosheet Arrays ◽  
Mos2 Nanosheet

Amorphous MoS2 nanosheet arrays on carbon cloth were directly prepared via a highly reproducible PVD, which exhibited superior catalytic activity and durability for the HER.

Controlled growth of small and uniformly dispersed Mo2C on carbon nanotubes as high performance electrocatalyst for the hydrogen evolution reaction

2019 ◽  
Vol 44 (23) ◽  
pp. 11797-11807 ◽  
Author(s):  
Alaaldin Adam ◽  
Munzir H. Suliman ◽  
Mohammad Awwad ◽  
Mohammad N. Siddiqui ◽  
Zain H. Yamani ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Performance ◽  
Controlled Growth

A crystalline–amorphous Ni–Ni(OH)2 core–shell catalyst for the alkaline hydrogen evolution reaction

2020 ◽  
Vol 8 (44) ◽  
pp. 23323-23329
Author(s):  
Jing Hu ◽  
Siwei Li ◽  
Yuzhi Li ◽  
Jing Wang ◽  
Yunchen Du ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Core Shell ◽  
Alkaline Conditions

Crystalline–amorphous Ni–Ni(OH)2 core–shell assembled nanosheets exhibit outstanding electrocatalytic activity and stability for hydrogen evolution under alkaline conditions.

Cobaloxime-Based Double Complex Salts as Efficient and Versatile Catalysts for the Light-Driven Hydrogen Evolution Reaction

2020 ◽  
Author(s):  
Elisabeth Hofmeister ◽  
Jisoo Woo ◽  
Tobias Ullrich ◽  
Lydia Petermann ◽  
Kevin Hanus ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Systematic Study ◽  
Cobalt Complexes ◽  
Spectroscopic Studies ◽  
Double Complex ◽  
Double Complex Salts ◽  
Noble Metal Catalysts ◽  
Reduction Potentials ◽  
Complex Salts

Cobaloximes and their BF<sub>2</sub>-bridged analogues have emerged as promising non-noble metal catalysts for the photocatalytic hydrogen evolution reaction (HER). Herein we report the serendipitous discovery that double complex salts such as [Co(dmgh)<sub>2</sub>py<sub>2</sub>]<sup>+</sup>[Co(dmgBPh<sub>2</sub>)<sub>2</sub>Cl<sub>2</sub>]<sup>-</sup> can be obtained in good yields by treatment of commercially available [Co(dmgh)<sub>2</sub>pyCl] with triarylboranes. A systematic study on the use of such double complex salts and their single salts with simple counterions as photocatalysts revealed HER activities comparable or superior to existing cobaloxime catalysts and suggests ample opportunities for this compound class in catalyst/photosensitizer dyads and immobilized architectures. Preliminary electrochemical and spectroscopic studies indicate that one key advantage of these charged cobalt complexes is that the reduction potentials as well as the electrostatic interaction with charged photosensitizers can be tuned.

2,2’-Dipyridylamine as Organic Molecular Electrocatalyst for Hydrogen Evolution Reaction in Acidic Electrolytes

2019 ◽  
Author(s):  
Xi Yin ◽  
Ling Lin ◽  
Hoon T. Chung ◽  
Ulises Martinez ◽  
Andrew M. Baker ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Density Functional ◽  
Low Cost ◽  
Membrane Electrode Assembly ◽  
Carbon Surface ◽  
Membrane Electrode ◽  
Durability Test ◽  
Onset Potential ◽  
Precious Metal Catalysts

Finding a low-cost and stable electrocatalyst for hydrogen evolution reaction (HER) as a replacement for scarce and expensive precious metal catalysts has attracted significant interest from chemical and materials research communities. Here, we demonstrate an organic catalyst based on 2,2’-dipyridylamine (dpa) molecules adsorbed on carbon surface, which shows remarkable hydrogen evolution activity and performance durability in strongly acidic polymer electrolytes without involving any metal. The HER onset potential at dpa adsorbed on carbon has been found to be less than 50 mV in sulfuric acid and in a Nafion-based membrane electrode assembly (MEA). At the same time, this catalyst has shown no performance loss in a 60-hour durability test. The HER reaction mechanisms and the low onset overpotential in this system are revealed based on electrochemical study. Density functional theory (DFT) calculations suggest that the pyridyl-N functions as the active site for H adsorption with a free energy of -0.13 eV, in agreement with the unusually low onset overpotential for an organic molecular catalyst.<br>

2,2’-Dipyridylamine as Organic Molecular Electrocatalyst for Hydrogen Evolution Reaction in Acidic Electrolytes

2019 ◽  
Author(s):  
Xi Yin ◽  
Ling Lin ◽  
Hoon T. Chung ◽  
Ulises Martinez ◽  
Andrew M. Baker ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Density Functional ◽  
Low Cost ◽  
Membrane Electrode Assembly ◽  
Carbon Surface ◽  
Membrane Electrode ◽  
Durability Test ◽  
Onset Potential ◽  
Precious Metal Catalysts

Finding a low-cost and stable electrocatalyst for hydrogen evolution reaction (HER) as a replacement for scarce and expensive precious metal catalysts has attracted significant interest from chemical and materials research communities. Here, we demonstrate an organic catalyst based on 2,2’-dipyridylamine (dpa) molecules adsorbed on carbon surface, which shows remarkable hydrogen evolution activity and performance durability in strongly acidic polymer electrolytes without involving any metal. The HER onset potential at dpa adsorbed on carbon has been found to be less than 50 mV in sulfuric acid and in a Nafion-based membrane electrode assembly (MEA). At the same time, this catalyst has shown no performance loss in a 60-hour durability test. The HER reaction mechanisms and the low onset overpotential in this system are revealed based on electrochemical study. Density functional theory (DFT) calculations suggest that the pyridyl-N functions as the active site for H adsorption with a free energy of -0.13 eV, in agreement with the unusually low onset overpotential for an organic molecular catalyst.<br>

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