Construction of a hierarchical NiFe layered double hydroxide with a 3D mesoporous structure as an advanced electrocatalyst for water oxidation

2018 ◽  
Vol 5 (8) ◽  
pp. 1795-1799 ◽  
Author(s):  
Jiahao Yu ◽  
Fulin Yang ◽  
Gongzhen Cheng ◽  
Wei Luo
Keyword(s):  
Hydrothermal Method ◽  
Layered Double Hydroxide ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Cost Effective ◽  
Mesoporous Structure ◽  
One Step ◽  
Double Hydroxide ◽  
A Current

A facile and cost-effective one-step hydrothermal method is used to synthesize NiFe LDH microclusters with a 3D hierarchically mesoporous architecture. This superior electrocatalyst can achieve a current density of 10 mA cm−2 with an ultralow overpotential of 211 mV toward the oxygen evolution reaction.

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...

Facile construction of self-supported Fe-doped Ni3S2 nanoparticle arrays for ultralow-overpotential oxygen evolution reaction

Nanoscale ◽  
2020 ◽  
Author(s):  
Ning Xie ◽  
Dong-Dong Ma ◽  
Xintao Wu ◽  
Qi-Long Zhu
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
High Performance ◽  
Cost Effective ◽  
Nanoparticle Arrays ◽  
Overall Water Splitting ◽  
Construction Of Self ◽  
One Step

Constructing high-performance and cost-effective electrocatalysts for water oxidation, particularly for overall water splitting is extremely needed, whereas still challenging. Herein, based on an economical and facile one-step surface sulfurization strategy,...

The fabrication of Co:ZnS/CoS2 heterostructure nanowires with a superior hydrogen evolution performance

2019 ◽  
Vol 3 (10) ◽  
pp. 2771-2778 ◽  
Author(s):  
Shancheng Yan ◽  
Ka Wang ◽  
Qingxia Wu ◽  
Fei Zhou ◽  
Zixia Lin ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Hydrogen Evolution ◽  
Current Density ◽  
High Hydrogen ◽  
Tafel Slope ◽  
One Step ◽  
A Current

The ultrafine Co:ZnS/CoS2 heterostructure nanowires with high hydrogen evolution performance by one-step hydrothermal method. The overpotential required to reach a current density of 10 mAcm−2 was only 78 mV in 0.5 M H2SO4 solution, and the Tafel slope was 56 mV dec−1.

Synthesis of ultrasmall and monodisperse sulfur nanoparticle intercalated CoAl layered double hydroxide and its electro-catalytic water oxidation reaction at neutral pH

Nanoscale ◽  
2019 ◽  
Vol 11 (16) ◽  
pp. 7560-7566 ◽  
Author(s):  
Dewan Azharul Islam ◽  
Koushik Barman ◽  
Sk Jasimuddin ◽  
Himadri Acharya
Keyword(s):  
Layered Double Hydroxide ◽  
Current Density ◽  
Water Oxidation ◽  
Oxidation Reaction ◽  
High Current Density ◽  
High Current ◽  
Tafel Slope ◽  
Neutral Ph ◽  
Low Overpotential ◽  
Double Hydroxide

Sulfur nanoparticle intercalated CoAl-LDH as a robust electrocatalyst for water oxidation reaction at a low overpotential of 250 mV, high current density of 7.9 mA cm−2 and Tafel slope of 61 mV dec−1 under neutral pH condition.

scholarly journals The facile one-step hydrothermal method to prepare MnO2 nanoparticles: Structural and electrochemical properties

2021 ◽  
Vol 2145 (1) ◽  
pp. 012034
Author(s):  
K Tangphanit ◽  
N Boonraksa ◽  
S Maensiri ◽  
E Swatsitang ◽  
K Wongsaprom
Keyword(s):  
Hydrothermal Method ◽  
Current Density ◽  
Average Particle Size ◽  
Nitrogen Adsorption ◽  
Spherical Particles ◽  
Average Particle ◽  
Orthorhombic Crystal ◽  
Orthorhombic Crystal Structure ◽  
One Step ◽  
A Current

Abstract MnO2 nanoparticles were successfully prepared via one-step hydrothermal method. The surface are properties of the MnO2 nanoparticles were determined by BET nitrogen adsorption-desorption measurement. The XRD analyses confirm the pure phase of γ-MnO2 and α-MnO2, having orthorhombic crystal structure (JCPDS file no.14-0644 and 44-0141). FE-SEM analysis reveals the combination of massively small spherical particles with average particle size 54.8 nm. The electrochemical results revealed that the MnO2 nanoparticles delivered the specific capacitance of 200.83 F/g at a current density of 1A/g. The cycle stability was usability 30% after 500 cycles at a current density of 5 A/g. The MnO2 nanoparticles reveal a energy density of 3.62 Wh/kg under a power density of 43.11 W/kg.

Achieving stable and efficient water oxidation by incorporating NiFe layered double hydroxide nanoparticles into aligned carbon nanotubes

2016 ◽  
Vol 1 (2) ◽  
pp. 156-160 ◽  
Author(s):  
Rong Chen ◽  
Gengzhi Sun ◽  
Cangjie Yang ◽  
Liping Zhang ◽  
Jianwei Miao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Layered Double Hydroxide ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Aligned Carbon Nanotubes ◽  
Multi Walled Carbon Nanotubes ◽  
Binder Free ◽  
Double Hydroxide ◽  
Walled Carbon Nanotubes ◽  
Layered Double Hydroxide Nanoparticles

Binder-free hybrid microfiber electrodes with excellent oxygen evolution reaction activity were fabricated by scrolling stable dispersed NiFe-LDH nanoparticles into well-aligned multi-walled carbon nanotubes.

One-Step Synthesis of NiMn-Layered Double Hydroxide Nanosheets Efficient for Water Oxidation

Small Methods ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 1800344 ◽  
Author(s):  
Ruiqi Li ◽  
Yuqian Liu ◽  
Haobo Li ◽  
Man Zhang ◽  
Yiran Lu ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
One Step ◽  
Double Hydroxide

One-step synthesis of zinc–cobalt layered double hydroxide (Zn–Co-LDH) nanosheets for high-efficiency oxygen evolution reaction

2015 ◽  
Vol 3 (13) ◽  
pp. 6878-6883 ◽  
Author(s):  
Chen Qiao ◽  
Yuan Zhang ◽  
Youqi Zhu ◽  
Chuanbao Cao ◽  
Xinhua Bao ◽  
...  
Keyword(s):  
Surface Area ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
Large Surface Area ◽  
Two Dimensional ◽  
One Step ◽  
2D Nanomaterials ◽  
Double Hydroxide

Two-dimensional (2D) nanomaterials show great potential for electrocatalysis or other applications that require large surface area.

Rational design of cobalt–chromium layered double hydroxide as a highly efficient electrocatalyst for water oxidation

2016 ◽  
Vol 4 (29) ◽  
pp. 11292-11298 ◽  
Author(s):  
Chenlong Dong ◽  
Xiaotao Yuan ◽  
Xin Wang ◽  
Xiangye Liu ◽  
Wujie Dong ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
High Performance ◽  
Rational Design ◽  
Cost Effective ◽  
Cobalt Chromium ◽  
Electrochemical Water Splitting ◽  
Double Hydroxide

The design of a high performance, stable and cost-effective electrocatalyst for oxygen evolution is crucial for H2 production from electrochemical water splitting.

An Fe(TCNQ)2 nanowire array on Fe foil: an efficient non-noble-metal catalyst for the oxygen evolution reaction in alkaline media

2018 ◽  
Vol 54 (18) ◽  
pp. 2300-2303 ◽  
Author(s):  
Maowen Xie ◽  
Xiaoli Xiong ◽  
Lin Yang ◽  
Xifeng Shi ◽  
Abdullah M. Asiri ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Nanowire Array ◽  
Alkaline Media ◽  
Metal Catalyst ◽  
Noble Metal Catalyst ◽  
A Current

An Fe-(tetracyanoquinodimethane)2 nanowire array in situ developed on Fe foil (Fe(TCNQ)2/Fe) acts as an efficient and durable electrocatalyst for water oxidation, needing an overpotential of 340 mV to attain a current density of 10 mA cm−2 in 1.0 M KOH.

Sign in / Sign up

Export Citation Format

Share Document