Facile synthesis of ZnCo2O4 mesoporous structures with enhanced electrocatalytic oxygen evolution reaction properties

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92699-92704 ◽  
Author(s):  
Jingchao Zhang ◽  
Daojun Zhang ◽  
Yujing Yang ◽  
Jingyu Ma ◽  
Shufang Cui ◽  
...  
Keyword(s):  
High Activity ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Electrolyte ◽  
Facile Synthesis ◽  
Mesoporous Structures

Mesoporous ZnCo2O4 micro-spindles exhibit good performance on water splitting with high activity and stability in an alkaline electrolyte.

Enhancing hydrogen evolution reaction through modulating electronic structure of self-supported NiFe LDH

2020 ◽  
Vol 10 (13) ◽  
pp. 4184-4190 ◽  
Author(s):  
Xiao-Peng Li ◽  
Wen-Kai Han ◽  
Kang Xiao ◽  
Ting Ouyang ◽  
Nan Li ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Alkaline Electrolyte ◽  
Overall Water Splitting ◽  
Double Hydroxide

NiFe-layered double hydroxide (NiFe LDH), as an efficient oxygen evolution reaction (OER) electrocatalyst, has emerged as a promising electrocatalyst for catalyzing overall water splitting in alkaline electrolyte.

scholarly journals Electrochemical Synergies of Heterostructured Fe2O3-MnO Redox Couple for Oxygen Evolution Reaction in Alkaline Water Splitting

2019 ◽  
Author(s):  
Junyeong Kim ◽  
Jun Neoung Heo ◽  
Jeong Yeon Do ◽  
Rama Krishna Chava ◽  
Misook Kang
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Photoelectron Spectroscopy ◽  
Oxygen Evolution Reaction ◽  
Redox Reaction ◽  
Sol Gel ◽  
Alkaline Electrolyte ◽  
Ni Foam ◽  
X Ray ◽  
Electrolysis System

For efficient electrode development in an electrolysis system, Fe2O3, MnO, and heterojunction Fe2O3-MnO materials were synthesized via a simple sol-gel method. These particles were coated on a Ni-foam electrode, and the resulting material was used as an electrode to be used during an oxygen evolution reaction (OER). A 1000-cycle OER test in a KOH alkaline electrolyte indicated that the heterojunction Fe2O3-MnO/NF electrode exhibited the most stable and highest OER activity: it exhibited a low overvoltage (n) of 370 mV and a small Tafel slope of 66 mV/dec. X-ray photoelectron spectroscopy indicated that the excellent redox performance contributed to the synergy of Mn and Fe, which enhanced the OER performance of the Fe2O3-MnO/NF electrode. Furthermore, the effective redox reaction of Mn and Fe indicated that the structure maintained stability even under 1000 repeated OER cycles.

A high-activity bimetallic OER cocatalyst for efficient photoelectrochemical water splitting of BiVO4

Nanoscale ◽  
2020 ◽  
Vol 12 (16) ◽  
pp. 8875-8882 ◽  
Author(s):  
Ruolin Hu ◽  
Linxing Meng ◽  
Jiaxu Zhang ◽  
Xiang Wang ◽  
Sijie Wu ◽  
...  
Keyword(s):  
High Activity ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Photoelectrochemical Water Splitting

High-activity bimetallic oxygen evolution reaction (OER) cocatalyst for efficient photoelectrochemical water splitting of BiVO4.

scholarly journals Electrochemical Synergies of Heterostructured Fe2O3-MnO Catalyst for Oxygen Evolution Reaction in Alkaline Water Splitting

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1486 ◽  
Author(s):  
Junyeong Kim ◽  
Jun Neoung Heo ◽  
Jeong Yeon Do ◽  
Rama Krishna Chava ◽  
Misook Kang
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Photoelectron Spectroscopy ◽  
Oxygen Evolution Reaction ◽  
Redox Reaction ◽  
Sol Gel ◽  
Alkaline Electrolyte ◽  
Ni Foam ◽  
X Ray ◽  
Electrolysis System

For efficient electrode development in an electrolysis system, Fe2O3, MnO, and heterojunction Fe2O3-MnO materials were synthesized via a simple sol–gel method. These particles were coated on a Ni-foam (NF) electrode, and the resulting material was used as an electrode to be used during an oxygen evolution reaction (OER). A 1000-cycle OER test in a KOH alkaline electrolyte indicated that the heterojunction Fe2O3-MnO/NF electrode exhibited the most stable and highest OER activity: it exhibited a low overvoltage (n) of 370 mV and a small Tafel slope of 66 mV/dec. X-ray photoelectron spectroscopy indicated that the excellent redox performance contributed to the synergy of Mn and Fe, which enhanced the OER performance of the Fe2O3-MnO/NF electrode. Furthermore, the effective redox reaction of Mn and Fe indicated that the structure maintained stability even under 1000 repeated OER cycles.

Draining the photoinduced electrons away from an anode: the preparation of Ag/Ag3PO4 composite nanoplate photoanodes for highly efficient water splitting

2015 ◽  
Vol 3 (37) ◽  
pp. 18991-18999 ◽  
Author(s):  
Qingyong Wu ◽  
Peng Diao ◽  
Jie Sun ◽  
Di Xu ◽  
Tao Jin ◽  
...  
Keyword(s):  
High Activity ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Highly Efficient ◽  
Vertically Aligned

Ag/Ag3PO4 composite photoanodes based on vertically aligned Ag nanoplates exhibited high activity and stability toward photoelectrochemical oxygen evolution reaction.

scholarly journals A one-dimensional porous carbon-supported Ni/Mo2C dual catalyst for efficient water splitting

2017 ◽  
Vol 8 (2) ◽  
pp. 968-973 ◽  
Author(s):  
Zi-You Yu ◽  
Yu Duan ◽  
Min-Rui Gao ◽  
Chao-Chao Lang ◽  
Ya-Rong Zheng ◽  
...  
Keyword(s):  
High Activity ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Porous Carbon ◽  
Oxygen Evolution Reaction ◽  
One Dimensional ◽  
Overall Water Splitting ◽  
Supported Ni

A new porous carbon-supported Ni/Mo2C composite exhibits high activity towards both the hydrogen evolution reaction and oxygen evolution reaction for overall water splitting.

Hierarchically porous FeNi3@FeNi layered double hydroxide nanostructures: One-step fast electrodeposition and highly efficient electrocatalytic performances for overall water splitting

2021 ◽  
Author(s):  
Zihao Liu ◽  
Shifeng Li ◽  
Fangfang Wang ◽  
Mingxia Li ◽  
Yonghong Ni
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hierarchically Porous ◽  
One Step ◽  
Double Hydroxide

FeNi-layered double hydroxide (LDH) is thought to be an excellent electrocatalyst for oxygen evolution reaction (OER), but it always shows extremely poor electrocatalytic activity toward hydrogen evolution reaction (HER) in...

Sign in / Sign up

Export Citation Format

Share Document