In situ growth of Fe(ii)-MOF-74 nanoarrays on nickel foam as an efficient electrocatalytic electrode for water oxidation: a mechanistic study on valence engineering

2019 ◽  
Vol 55 (75) ◽  
pp. 11307-11310 ◽  
Author(s):  
Qijun Wang ◽  
Feifei Wei ◽  
Devaraj Manoj ◽  
Zheye Zhang ◽  
Junwu Xiao ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Water Oxidation ◽  
Nickel Foam ◽  
Mechanistic Study ◽  
In Situ Growth

DFT results first demonstrate that varying the metal valence can tune the stable intrinsic electronic structure of MOF, different valence Fe(ii) and Fe(iii)-MOF-74 nanoarrrays on nickel foam are further synthesized as electrode for water oxidation.

In Situ Growth of Fe(Ni)OOH Catalyst on Stainless Steel for Water Oxidation

2017 ◽  
Vol 2 (7) ◽  
pp. 2230-2234 ◽  
Author(s):  
Ding Tang ◽  
Oluwaniyi Mabayoje ◽  
Yanqing Lai ◽  
Yexiang Liu ◽  
C. Buddie Mullins
Keyword(s):  
Stainless Steel ◽  
Water Oxidation ◽  
In Situ Growth

Rapid in situ growth of β-Ni(OH)2 nanosheet arrays on nickel foam as an integrated electrode for supercapacitors exhibiting high energy density

2020 ◽  
Vol 49 (15) ◽  
pp. 4956-4966 ◽  
Author(s):  
Jingbo Li ◽  
Yu Liu ◽  
Wei Cao ◽  
Nan Chen
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Nickel Foam ◽  
High Energy ◽  
High Energy Density ◽  
In Situ Growth ◽  
Nanosheet Arrays

A rapid in situ method was employed to synthesize the β-Ni(OH)2@NF integrated electrode for a high performance ASC device.

In situ growth of Fe and Nb co-doped β-Ni(OH)2 nanosheet arrays on nickel foam for an efficient oxygen evolution reaction

2020 ◽  
Vol 7 (18) ◽  
pp. 3465-3474
Author(s):  
Junjie Pan ◽  
Shaoyun Hao ◽  
Xingwang Zhang ◽  
Rongxin Huang
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nickel Foam ◽  
In Situ Growth ◽  
Nanosheet Arrays ◽  
Co Doped

Fe, Nb co-doped β-Ni(OH)2 electrode exhibited excellent OER performance with an overpotential of 294 mV at 100 mA cm−2.

One-Step In Situ Growth of Iron-Nickel Sulfide Nanosheets on FeNi Alloy Foils: High-Performance and Self-Supported Electrodes for Water Oxidation

Small ◽  
2017 ◽  
Vol 13 (18) ◽  
pp. 1604161 ◽  
Author(s):  
Cheng-Zong Yuan ◽  
Zhong-Ti Sun ◽  
Yi-Fan Jiang ◽  
Zheng-Kun Yang ◽  
Nan Jiang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
High Performance ◽  
Nickel Sulfide ◽  
In Situ Growth ◽  
Iron Nickel ◽  
One Step ◽  
Feni Alloy

scholarly journals An aqueous preoxidation method for monolithic perovskite electrocatalysts with enhanced water oxidation performance

2016 ◽  
Vol 2 (10) ◽  
pp. e1600495 ◽  
Author(s):  
Bo-Quan Li ◽  
Cheng Tang ◽  
Hao-Fan Wang ◽  
Xiao-Lin Zhu ◽  
Qiang Zhang
Keyword(s):  
Water Oxidation ◽  
Fenton Reaction ◽  
Nickel Foam ◽  
Three Dimensional ◽  
Active Phase ◽  
Perovskite Oxides ◽  
High Temperature Annealing ◽  
Current Collectors ◽  
Oxidation Performance

Perovskite oxides with poor conductivity call for three-dimensional (3D) conductive scaffolds to demonstrate their superb reactivities for oxygen evolution reaction (OER). However, perovskite formation usually requires high-temperature annealing at 600° to 900°C in air, under which most of the used conductive frameworks (for example, carbon and metal current collectors) are reductive and cannot survive. We propose a preoxidization coupled electrodeposition strategy in which Co2+ is preoxidized to Co3+ through cobalt Fenton reaction in aqueous solution, whereas the reductive nickel framework is well maintained during the sequential annealing under nonoxidative atmosphere. The in situ–generated Co3+ is inherited into oxidized perovskites deposited on 3D nickel foam, rendering the monolithic perovskite electrocatalysts with extraordinary OER performance with an ultralow overpotential of 350 mV required for 10 mA cm−2, a very small Tafel slope of 59 mV dec−1, and superb stability in 0.10 M KOH. Therefore, we inaugurate a unique strategy for in situ hybridization of oxidative active phase with reductive framework, affording superb reactivity of perovskite electrocatalyst for efficient water oxidation.

CaMoO4 nanosheet arrays for efficient and durable water oxidation electrocatalysis under alkaline conditions

2018 ◽  
Vol 54 (40) ◽  
pp. 5066-5069 ◽  
Author(s):  
Ying Gou ◽  
Qin Liu ◽  
Xifeng Shi ◽  
Abdullah M. Asiri ◽  
Jianming Hu ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Nickel Foam ◽  
Alkaline Water ◽  
Nanosheet Arrays ◽  
Alkaline Conditions ◽  
Catalyst Electrode

CaMoO4 nanosheet arrays grown in situ on nickel foam (CaMoO4/NF) act as a superior 3D catalyst electrode for alkaline water oxidation with high long-term durability.

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