The facile oil-phase synthesis of a multi-site synergistic high-entropy alloy to promote the alkaline hydrogen evolution reaction

2021 ◽  
Author(s):  
Dan Zhang ◽  
Yue Shi ◽  
Huan Zhao ◽  
Wenjing Qi ◽  
Xilei Chen ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Entropy Alloy ◽  
Phase Synthesis ◽  
High Entropy ◽  
Synthesis Strategy ◽  
Great Progress

Although intensive efforts have been made and great progress has been achieved relating to the electrocatalytic hydrogen evolution reaction (HER), an advanced synthesis strategy for an efficient electrocatalyst is still the most significant goal.

scholarly journals On the electronic structure and hydrogen evolution reaction activity of platinum group metal-based high-entropy-alloy nanoparticles

2020 ◽  
Vol 11 (47) ◽  
pp. 12731-12736 ◽  
Author(s):  
Dongshuang Wu ◽  
Kohei Kusada ◽  
Tomokazu Yamamoto ◽  
Takaaki Toriyama ◽  
Syo Matsumura ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Platinum Group Metal ◽  
High Entropy Alloy ◽  
Band Spectrum ◽  
Alloy Nanoparticles ◽  
Valence Band Spectrum ◽  
High Hydrogen ◽  
High Entropy

RuRhPdIrPt high-entropy-alloy nanoparticles with a broad and featureless valence band spectrum show high hydrogen evolution reaction activity.

A robust self-stabilized electrode based on Al-based metallic glasses for a highly efficient hydrogen evolution reaction

2020 ◽  
Vol 8 (6) ◽  
pp. 3246-3251 ◽  
Author(s):  
Song Ju ◽  
Jingqing Feng ◽  
Peng Zou ◽  
Wei Xu ◽  
Shunjie Wang ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Metallic Glasses ◽  
Glass Ribbon ◽  
High Entropy Alloy ◽  
Free Standing ◽  
High Entropy ◽  
Metallic Glass Ribbon ◽  
Nanoporous Layer

Al-based metallic glass ribbon with a nanoporous layer of high-entropy alloy is a robust advanced self-stabilized free-standing electrode for hydrogen evolution reaction.

High entropy alloy nitrides with integrated nanowire/nanosheets architectures for efficient alkaline hydrogen evolution reaction

2021 ◽  
Author(s):  
Chen Liu ◽  
Han Zhu ◽  
Shuanglong Lu ◽  
Fang Duan ◽  
Mingliang Du
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Catalyst Supports ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Facile Fabrication

High entropy materials (HEMs) are promising candidates as efficient hydrogen evolution reaction (HER) electrocatalyst and however, the facile fabrication of nanostructured HEMs over conventional catalyst supports remains huge challenges. Herein,...

scholarly journals Correction: On the electronic structure and hydrogen evolution reaction activity of platinum group metal-based high-entropy-alloy nanoparticles

2021 ◽  
Author(s):  
Dongshuang Wu ◽  
Kohei Kusada ◽  
Tomokazu Yamamoto ◽  
Takaaki Toriyama ◽  
Syo Matsumura ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Platinum Group Metal ◽  
High Entropy Alloy ◽  
Alloy Nanoparticles ◽  
High Entropy ◽  
Group Metal ◽  
Platinum Group

Correction for ‘On the electronic structure and hydrogen evolution reaction activity of platinum group metal-based high-entropy-alloy nanoparticles’ by Dongshuang Wu et al., Chem. Sci., 2020, 11, 12731–12736, DOI: 10.1039/D0SC02351E.

High entropy alloy as a highly active and stable electrocatalyst for hydrogen evolution reaction

2018 ◽  
Vol 279 ◽  
pp. 19-23 ◽  
Author(s):  
Guoliang Zhang ◽  
Kaisheng Ming ◽  
Jianli Kang ◽  
Qin Huang ◽  
Zhijia Zhang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Highly Active

scholarly journals Fast Site-to-site Electron Transfer of High-entropy Alloy Nanocatalyst Driving Redox Electrocatalysis

2020 ◽  
Author(s):  
Hongdong Li ◽  
Yi Han ◽  
Huan Zhao ◽  
Wenjing Qi ◽  
Dan Zhang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Active Sites ◽  
Methanol Oxidation Reaction ◽  
High Entropy Alloy ◽  
Oxidation Reactions ◽  
Hydrogen Electrode ◽  
Efficient Catalyst ◽  
High Entropy ◽  
Synthesis Strategy ◽  
Reduction And Oxidation

Abstract Designing electrocatalysts with high-performance for both reduction and oxidation reactions faces severe challenges. Here, the uniform and small size (~3.4 nm) high-entropy alloys (HEAs) Pt18Ni26Fe15Co14Cu27 nanoparticles (NPs) are synthesized by a simple low-temperature (<250 oC) oil phase synthesis strategy at atmospheric pressure for the first time. The Pt18Ni26Fe15Co14Cu27/C catalyst exhibits excellent electrocatalytic performance for hydrogen evolution reaction (HER) and methanol oxidation reaction (MOR). The catalyst is one of the best performance achieved by state-of-the-art alkaline HER catalysts, which shows an ultrasmall overpotential of 11 mV at the current density of 10 mA cm-2, excellent activity (10.96 A mg-1Pt at -0.07 V vs. reversible hydrogen electrode) and stability in the alkaline medium. Furthermore, it is also the most efficient catalyst (15.04 A mg-1Pt) ever reported for MOR in alkaline solution. DFT calculations confirm the multi-active sites for both HER and MOR on the HEA surface as the key factor for both proton and intermediate transformation. Meanwhile, the construction of HEA surfaces supplies the fast site-to-site electron transfer for both reduction and oxidation processes.

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