Defective and ultrathin NiFe LDH nanosheets decorated on V-doped Ni3S2 nanorod arrays: a 3D core–shell electrocatalyst for efficient water oxidation

2019 ◽  
Vol 7 (30) ◽  
pp. 18118-18125 ◽  
Author(s):  
Jianqing Zhou ◽  
Luo Yu ◽  
Qiancheng Zhu ◽  
Chuqiang Huang ◽  
Ying Yu
Keyword(s):  
Water Oxidation ◽  
Core Shell ◽  
Nanorod Arrays

Defective and ultrathin NiFe LDH nanosheets decorated on V-doped Ni3S2 nanorod arrays were fabricated as 3D core–shell electrocatalysts for OER.

Cu3P/CuO Core-Shell Nanorod Arrays as High-Performance Electrocatalysts for Water Oxidation

2018 ◽  
Vol 5 (15) ◽  
pp. 2064-2068 ◽  
Author(s):  
Jian Du ◽  
Fei Li ◽  
Yong Wang ◽  
Yong Zhu ◽  
Licheng Sun
Keyword(s):  
Water Oxidation ◽  
High Performance ◽  
Core Shell ◽  
Nanorod Arrays

Construction of CoMoO4@Ni3S2 core-shell heterostructures nanorod arrays for high-performance supercapacitors

2021 ◽  
Vol 35 ◽  
pp. 102319
Author(s):  
Tao Wang ◽  
Weibing Ma ◽  
Yuxin Zhang ◽  
Jingdong Guo ◽  
Tingting Li ◽  
...  
Keyword(s):  
High Performance ◽  
Core Shell ◽  
Nanorod Arrays

scholarly journals Self-Standing 3D Core–Shell Nanohybrids Based on Amorphous Co–Fe–Bi Nanosheets Grafted on NiCo2O4 Nanowires for Efficient and Durable Water Oxidation

2020 ◽  
Vol 3 (5) ◽  
pp. 4338-4347 ◽  
Author(s):  
Umesh P. Suryawanshi ◽  
Mahesh P. Suryawanshi ◽  
Uma V. Ghorpade ◽  
Mingrui He ◽  
Dongmin Lee ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Core Shell

CuO@NiCoFe-S core-shell nanorod arrays based on Cu foam for high performance energy storage

2021 ◽  
Author(s):  
Zeyuan Hu ◽  
Yidong Miao ◽  
Xiaolan Xue ◽  
Bin Xiao ◽  
Jiqiu Qi ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Core Shell ◽  
Nanorod Arrays ◽  
Cu Foam

Water Oxidation Catalysis by Birnessite@Iron Oxide Core–Shell Nanocomposites

2015 ◽  
Vol 54 (6) ◽  
pp. 2734-2741 ◽  
Author(s):  
Gökhan Elmaci ◽  
Carolin E. Frey ◽  
Philipp Kurz ◽  
Birgül Zümreoğlu-Karan
Keyword(s):  
Iron Oxide ◽  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Core Shell ◽  
Water Oxidation Catalysis ◽  
Iron Oxide Core

scholarly journals Morphological and Elemental Investigations on Co–Fe–B–O Thin Films Deposited by Pulsed Laser Deposition for Alkaline Water Oxidation: Charge Exchange Efficiency as the Prevailing Factor in Comparison with the Adsorption Process

2021 ◽  
Author(s):  
Y. Popat ◽  
M. Orlandi ◽  
S. Gupta ◽  
N. Bazzanella ◽  
S. Pillai ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Water Oxidation ◽  
Active Sites ◽  
High Surface ◽  
Pulsed Laser ◽  
Industrial Applications ◽  
Active Species ◽  
Laser Deposition ◽  
Core Shell ◽  
Adsorption Sites

Abstract Mixed transition-metals oxide electrocatalysts have shown huge potential for electrochemical water oxidation due to their earth abundance, low cost and excellent electrocatalytic activity. Here we present Co–Fe–B–O coatings as oxygen evolution catalyst synthesized by Pulsed Laser Deposition (PLD) which provided flexibility to investigate the effect of morphology and structural transformation on the catalytic activity. As an unusual behaviour, nanomorphology of 3D-urchin-like particles assembled with crystallized CoFe2O4 nanowires, acquiring high surface area, displayed inferior performance as compared to core–shell particles with partially crystalline shell containing boron. The best electrochemical activity towards water oxidation in alkaline medium with an overpotential of 315 mV at 10 mA/cm2 along with a Tafel slope of 31.5 mV/dec was recorded with core–shell particle morphology. Systematic comparison with control samples highlighted the role of all the elements, with Co being the active element, boron prevents the complete oxidation of Co to form Co3+ active species (CoOOH), while Fe assists in reducing Co3+ to Co2+ so that these species are regenerated in the successive cycles. Thorough observation of results also indicates that the activity of the active sites play a dominating role in determining the performance of the electrocatalyst over the number of adsorption sites. The synthesized Co–Fe–B–O coatings displayed good stability and recyclability thereby showcasing potential for industrial applications. Graphic Abstract

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