scholarly journals Hierarchical Porous Ni 3 S 4 with Enriched High‐Valence Ni Sites as a Robust Electrocatalyst for Efficient Oxygen Evolution Reaction

2019 ◽  
Vol 29 (18) ◽  
pp. 1900315 ◽  
Author(s):  
Kai Wan ◽  
Jiangshui Luo ◽  
Chen Zhou ◽  
Ting Zhang ◽  
Jordi Arbiol ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Hierarchical Porous

Pd–Mn3O4 on 3D hierarchical porous graphene-like carbon for oxygen evolution reaction

Ionics ◽  
2018 ◽  
Vol 24 (10) ◽  
pp. 3095-3100 ◽  
Author(s):  
Chan-Juan Zhang ◽  
Guo-Liang Pan ◽  
Yong-Qiang Zhou ◽  
Chang-Wei Xu
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Porous Graphene ◽  
Hierarchical Porous

Hierarchical porous Fe3O4/Co3S4 nanosheets as an efficient electrocatalyst for the oxygen evolution reaction

2017 ◽  
Vol 5 (19) ◽  
pp. 9210-9216 ◽  
Author(s):  
Jing Du ◽  
Ting Zhang ◽  
Jiale Xing ◽  
Cailing Xu
Keyword(s):  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Tafel Slope ◽  
Hierarchical Porous ◽  
A Current

A hierarchical porous Fe3O4/Co3S4 nanosheet composite was synthesized and it needed an overpotential of only 270 mV to achieve a current density of 10 mA cm−2 and afforded a small Tafel slope of about 56 mV dec−1.

scholarly journals Construction of Hierarchical Porous Architecture on Ni Foam for Efficient Oxygen Evolution Reaction Electrode

2021 ◽  
Vol 8 ◽  
Author(s):  
Guang-Hong Ao ◽  
Pei-Zhi Zhao ◽  
Zhi-Gang Peng ◽  
Shuo Wang ◽  
Ying-Shuang Guo ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nickel Foam ◽  
Reduction Process ◽  
Operating Conditions ◽  
Energy Storage And Conversion ◽  
High Porosity ◽  
Ni Foam ◽  
Porous Architecture ◽  
Hierarchical Porous

Nickel foam (NF) with a three-dimensional porous structure plays an important role in a wide variety of applications such as energy storage and conversion, catalysis, and sensor due to its high porosity, low density, and excellent conductivity. However, the main drawback of NF is that its ligaments are very smooth, and thus the surface area is relatively low. In this work, we propose a novel strategy, oxidization and reduction process, in situ to construct micron/nano pores on the ligaments of commercial NF to fabricate a typical hierarchical porous architecture. This process is simple and green, avoiding the use of sacrificial materials. Furthermore, MnO2 is coated on the micron/nano-porous Ni foam (MPNF) to construct an oxygen evolution reaction (OER) electrode through pulse electrodeposition. The designed MPNF-MnO2 electrode presents enhanced OER electrocatalysis activity with a low overpotential of 363.5 mV at the current density of 10 mA cm−2 in an alkaline solution, which is 66.4 mV lower than that of the NF-MnO2 electrode in the same operating conditions. Furthermore, the porous and wrinkled structures of the MPNF also improve the mechanical integrity of the electrode, resulting in super-long stability.

Hierarchical porous CoS2 microboxes for efficient oxygen evolution reaction

2018 ◽  
Vol 278 ◽  
pp. 219-225 ◽  
Author(s):  
Yanping Hua ◽  
Hao Jiang ◽  
Haibo Jiang ◽  
Haoxuan Zhang ◽  
Chunzhong Li
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Hierarchical Porous

Facile synthesis of hierarchical porous NixCo1−xSeO3 networks with controllable composition as a new and efficient water oxidation catalyst

Nanoscale ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 3268-3274 ◽  
Author(s):  
Jianping Xin ◽  
Hua Tan ◽  
Zhihe Liu ◽  
Lili Zhao ◽  
Junfeng Xie ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Oxidation Catalyst ◽  
Facile Synthesis ◽  
Hierarchical Porous

Hierarchical porous NixCo1−xSeO3 networks as a new and efficient electrocatalyst for the oxygen evolution reaction have been designed and synthesized.

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