Fabrication of hollow pompon-like Co3O4 nanostructures with rich defects and high-index facet exposure for enhanced oxygen evolution catalysis

2019 ◽  
Vol 7 (15) ◽  
pp. 9059-9067 ◽  
Author(s):  
Chunmei Zhang ◽  
Fuqin Zheng ◽  
Ziwei Zhang ◽  
Dong Xiang ◽  
Chunfeng Cheng ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Index ◽  
Electrocatalytic Performance ◽  
Co3o4 Nanostructures

A hollow pompon-like Co3O4 nanostructure with rich defects and high-index facets exhibits enhanced electrocatalytic performance for the oxygen evolution reaction (OER).

The oxygen evolution reaction enabled by transition metal phosphide and chalcogenide pre-catalysts with dynamic changes

2019 ◽  
Vol 55 (60) ◽  
pp. 8744-8763 ◽  
Author(s):  
Wei Li ◽  
Dehua Xiong ◽  
Xuefei Gao ◽  
Lifeng Liu
Keyword(s):  
Transition Metal ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Dynamic Changes ◽  
Metal Phosphide ◽  
Electrocatalytic Performance ◽  
Metal Phosphides ◽  
Compositional Changes ◽  
Transition Metal Phosphide ◽  
Transition Metal Phosphides

Dynamic morphological, structural and compositional changes will occur when transition metal phosphides and chalcogenides are used to catalyze the oxygen evolution reaction, which can substantially enhance their electrocatalytic performance.

Exfoliation of ultrathin FePS3 layers as a promising electrocatalyst for the oxygen evolution reaction

2018 ◽  
Vol 54 (35) ◽  
pp. 4481-4484 ◽  
Author(s):  
Wen Zhu ◽  
Wei Gan ◽  
Zahir Muhammad ◽  
Changda Wang ◽  
Chuanqiang Wu ◽  
...  
Keyword(s):  
Ball Milling ◽  
Oxygen Evolution ◽  
Alkaline Medium ◽  
Oxygen Evolution Reaction ◽  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Electrocatalytic Performance

Few-layer ternary FePS3 nanosheets, prepared via chemical vapor transport synthesis and ball-milling exfoliation, exhibit excellent electrocatalytic performance for the oxygen evolution reaction in an alkaline medium.

Engineering Morphologies of Cobalt Pyrophosphates Nanostructures toward Greatly Enhanced Electrocatalytic Performance of Oxygen Evolution Reaction

Small ◽  
2018 ◽  
Vol 14 (31) ◽  
pp. 1801068 ◽  
Author(s):  
Hongfang Du ◽  
Wei Ai ◽  
Zhi Liang Zhao ◽  
Yu Chen ◽  
Xin Xu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Performance

scholarly journals Synthesis of Ni4.5Fe4.5S8/Ni3S2 film on Ni3Fe alloy foam as an excellent electrocatalyst for the oxygen evolution reaction

RSC Advances ◽  
2019 ◽  
Vol 9 (18) ◽  
pp. 10231-10236 ◽  
Author(s):  
Shili Qin ◽  
Jinlong Lei ◽  
Yun Xiong ◽  
Xiaohu Xu ◽  
Xinhua Geng ◽  
...  
Keyword(s):  
Composite Materials ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Solutions ◽  
Ni3fe Alloy ◽  
Electrocatalytic Performance

Ni4.5Fe4.5S8/Ni3S2‖Ni3Fe composite materials show excellent OER electrocatalytic performance in alkaline solutions.

scholarly journals Protic Imidazolium Polymer as Ion Conductor for Improved Oxygen Evolution Performance

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1268 ◽  
Author(s):  
Fangfang Zhang ◽  
Minchen Yang ◽  
Siyi Zhang ◽  
Pengfei Fang
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Conceptual Design ◽  
Oxygen Evolution Reaction ◽  
Ion Conductor ◽  
Electrocatalytic Performance ◽  
New Ideas ◽  
Electrochemical Devices ◽  
Acidic Conditions ◽  
Ion Conductors

Improving the electrocatalytic performance of oxygen evolution reaction (OER) is essential for oxygen-involved electrochemical devices, including water splitting and rechargeable metal–air batteries. In this work, we report that the OER performance of commercial catalysts of IrO2, Co3O4, and Pt-C can be improved by replacing the traditional Nafion® ionomer with newly synthesized copolymers consisting of protonated imidazolium moieties such as ion conductors and binders in electrodes. Specifically, such an improvement in OER performance for all the tested catalysts is more significant in basic and neutral environments than that under acidic conditions. We anticipate that the results will provide new ideas for the conceptual design of electrodes for oxygen-involved electrochemical devices.

Self-supported cobalt-nickel bimetallic telluride as an advanced catalyst for oxygen evolution reaction

2021 ◽  
Author(s):  
Yu Qi ◽  
Zhi Yang ◽  
Shuai Peng ◽  
Mitang Wang ◽  
Jilin Bai ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Bimetallic Catalysts ◽  
Metal Elements ◽  
Cobalt Nickel ◽  
Electrocatalytic Performance ◽  
Monometallic Catalyst

Compared with a monometallic catalyst, nanostructured bimetallic catalysts present an enhanced electrocatalytic performance due to the synergistic effect of two metal elements. To improve the OER performance of metal tellurides,...

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