A Co-MOF nanosheet array as a high-performance electrocatalyst for the oxygen evolution reaction in alkaline electrolytes

2018 ◽  
Vol 5 (2) ◽  
pp. 344-347 ◽  
Author(s):  
Xiaoping Zhang ◽  
Weidi Sun ◽  
Huitong Du ◽  
Rong-Mei Kong ◽  
Fengli Qu
Keyword(s):  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Ni Foam ◽  
Catalytic Current ◽  
Nanosheet Array ◽  
Alkaline Electrolytes

A Co-MOF nanosheet array on Ni foam (Co-MOF/NF) acts as a superior electrocatalyst for the oxygen evolution reaction, needing an overpotential of only 311 mV to drive a geometrical catalytic current density of 50 mA cm−2 in 1.0 M KOH.

A Zn-doped Ni3S2nanosheet array as a high-performance electrochemical water oxidation catalyst in alkaline solution

2017 ◽  
Vol 53 (92) ◽  
pp. 12446-12449 ◽  
Author(s):  
Qin Liu ◽  
Lisi Xie ◽  
Zhiang Liu ◽  
Gu Du ◽  
Abdullah M. Asiri ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Alkaline Solution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
High Performance ◽  
Oxidation Catalyst ◽  
Ni Foam ◽  
Catalytic Current ◽  
Nanosheet Array

A Zn-doped Ni3S2nanosheet array on Ni foam (Zn-Ni3S2/NF) acts as a high-performance and durable electrocatalyst for the oxygen evolution reaction in 1.0 M KOH, driving a catalytic current density of 100 mA cm−2at an overpotential of 330 mV, 90 mV less than that for Ni3S2/NF.

Ultra-thin wrinkled NiOOH–NiCr2O4 nanosheets on Ni foam: an advanced catalytic electrode for oxygen evolution reaction

2018 ◽  
Vol 54 (39) ◽  
pp. 4987-4990 ◽  
Author(s):  
Jinxiu Zhao ◽  
Xiang Ren ◽  
Qingzhi Han ◽  
Dawei Fan ◽  
Xu Sun ◽  
...  
Keyword(s):  
High Activity ◽  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media ◽  
Ni Foam ◽  
Catalytic Current

NiOOH–NiCr2O4/NF shows high activity for the OER in alkaline media, achieving a catalytic current density of 20 mA cm−2 at an overpotential of 271 mV.

High-performance water oxidation electrocatalysis enabled by a Ni-MOF nanosheet array

2018 ◽  
Vol 5 (7) ◽  
pp. 1570-1574 ◽  
Author(s):  
Qin Liu ◽  
Lisi Xie ◽  
Xifeng Shi ◽  
Gu Du ◽  
Abdullah M. Asiri ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
High Performance ◽  
Ni Foam ◽  
Nanosheet Array

An Ni-MOF nanosheet array on Ni foam (Ni-MOF/NF) acts as a high-performance and durable electrocatalyst for the oxygen evolution reaction in 1.0 M KOH, needing an overpotential of 320 mV to drive 100 mA cm−2.

Cobalt–borate nanowire array as a high-performance catalyst for oxygen evolution reaction in near-neutral media

2017 ◽  
Vol 5 (16) ◽  
pp. 7291-7294 ◽  
Author(s):  
Xiang Ren ◽  
Ruixiang Ge ◽  
Yong Zhang ◽  
Danni Liu ◽  
Dan Wu ◽  
...  
Keyword(s):  
High Activity ◽  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
High Performance ◽  
Nanowire Array ◽  
Catalytic Current ◽  
Neutral Media ◽  
Ti Mesh

As a durable catalyst, cobalt–borate nanowire array on Ti mesh exhibits high activity for water oxidation in near-neutral media, thereby achieving a geometrical catalytic current density of 10 mA cm−2 at an overpotential of 420 mV.

NiFe (sulfur)oxyhydroxide porous nanoclusters/Ni foam composite electrode drives a large-current-density oxygen evolution reaction with an ultra-low overpotential

2019 ◽  
Vol 7 (32) ◽  
pp. 18816-18822 ◽  
Author(s):  
Yanqing Wang ◽  
Yuemeng Li ◽  
Liping Ding ◽  
Zhe Chen ◽  
Aaron Ong ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Composite Electrode ◽  
Ni Foam ◽  
Large Current ◽  
Foam Composite ◽  
Large Current Density ◽  
Low Overpotential

A NiFe (sulfur)oxyhydroxide porous nanoclusters/Ni foam composite electrode was fabricated and can drive a large-current-density oxygen evolution reaction with an ultra-low overpotential.

Hierarchical Fe-doped Ni3Se4 ultrathin nanosheets as an efficient electrocatalyst for oxygen evolution reaction

Nanoscale ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 5163-5170 ◽  
Author(s):  
Jing Du ◽  
Zehua Zou ◽  
Chen Liu ◽  
Cailing Xu
Keyword(s):  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Solvothermal Synthesis ◽  
Ni Foam ◽  
Tafel Slope ◽  
Ultrathin Nanosheets ◽  
Selenization Process ◽  
A Current

Hierarchical Fe-doped Ni3Se4 ultrathin nanosheets are synthesized via solvothermal synthesis and a topotactic selenization process. The prepared (Ni,Fe)3Se4 ultrathin nanosheets supported on Ni foam needed an overpotential of only 225 mV to achieve a current density of 10 mA cm−2 and a small Tafel slope of about 41 mV dec−1.

A Cu2Se–Cu2O film electrodeposited on titanium foil as a highly active and stable electrocatalyst for the oxygen evolution reaction

2018 ◽  
Vol 54 (39) ◽  
pp. 4979-4982 ◽  
Author(s):  
Hu Chen ◽  
Yan Gao ◽  
Lu Ye ◽  
Yanan Yao ◽  
Xuyang Chen ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Titanium Foil ◽  
Catalytic Current ◽  
Cathodic Electrodeposition ◽  
Carbonate Buffer ◽  
Highly Active ◽  
High Durability ◽  
Cu2o Film

Cu2Se–Cu2O/TF electrode prepared via a simple and fast cathodic electrodeposition method. The electrode achieved a catalytic current density of 10 mA cm−2 for the OER at relatively low overpotential of 465 mV in 0.2 M carbonate buffer (pH = 11.0) and displayed a high durability over 20 h.

Facile fabrication of CuO microcube@Fe–Co3O4 nanosheet array as a high-performance electrocatalyst for the oxygen evolution reaction

2017 ◽  
Vol 5 (41) ◽  
pp. 21740-21749 ◽  
Author(s):  
Xiumin Li ◽  
Chuncheng Li ◽  
Akihiro Yoshida ◽  
Xiaogang Hao ◽  
Zhijun Zuo ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Top Down ◽  
Highly Efficient ◽  
Nanosheet Array ◽  
Facile Fabrication ◽  
Co3o4 Nanosheet

A “top-down” tactic was offered to synthesize highly efficient electrocatalysts for the oxygen evolution reaction (OER), in which a CuO microcube supported Fe doped Co3O4 nanosheet composite was obtained using a UPED method combined with a thermal treatment.

scholarly journals Comparative Electrocatalytic Oxygen Evolution Reaction Studies of Spinel NiFe2O4 and Its Nanocarbon Hybrids

2021 ◽  
Author(s):  
Pratik V. Shinde ◽  
Rutuparna Samal ◽  
Chandra Sekhar Rout
Keyword(s):  
Graphene Oxide ◽  
Oxygen Evolution ◽  
Current Density ◽  
Transition Metal Oxides ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
High Performance ◽  
High Surface ◽  
High Surface Area ◽  
A Current

AbstractElectrocatalytic oxygen evolution reaction (OER) is one of the crucial reactions for converting renewable electricity into chemical fuel in the form of hydrogen. To date, there is still a challenge in designing ideal cost-effective OER catalysts with excellent activity and robust durability. The hybridization of transition metal oxides and carbonaceous materials is one of the most effective and promising strategies to develop high-performance electrocatalysts. Herein, this work synthesized hybrids of NiFe2O4 spinel materials with two-dimensional (2D) graphene oxide and one-dimensional (1D) carbon nanotubes using a facile solvothermal approach. Electrocatalytic activities of NiFe2O4 with 2D graphene oxide toward OER were realized to be superior even to the 1D carbon nanotube-based electrocatalyst in terms of overpotential to reach a current density of 10 mA/cm2 as well as Tafel slopes. The NiFe2O4 with 2D graphene oxide hybrid exhibits good stability with an overpotential of 327 mV at a current density of 10 mA/cm2 and a Tafel slope of 103 mV/dec. The high performance of NiFe2O4 with 2D graphene oxide is mainly attributed to its unique morphology, more exposed active sites, and a porous structure with a high surface area. Thus, an approach of hybridizing a metal oxide with a carbonaceous material offers an attractive platform for developing an efficient electrocatalyst for water electrochemistry applications.

Composite clusters: Co5.7Ni2.3W12O42(OH)4@fluoro-graphdiyne as a stable electrode for sustained electrochemical oxygen evolution under high current conditions

2021 ◽  
Author(s):  
Hao Sun ◽  
Xiaomei Xu ◽  
Chaojun Jing ◽  
Wenhui Shang ◽  
Yongchun Wang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
High Current Density ◽  
High Current ◽  
Electrochemical Oxygen

A composite cluster [Co5.7Ni2.3W12O42(OH)4@FGDY] exhibited high performance for the electrochemical oxygen evolution reaction with low potentials at high current density and long stability.

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