Manipulating the Electrocatalytic Performance of NiCoP Nanowires by V Doping Under Acidic and Basic Conditions for Hydrogen and Oxygen Evolution Reactions

2021 ◽  
Author(s):  
Zhongxin Duan ◽  
Xiaojie Tan ◽  
Yuchen Sun ◽  
Wei-chao Zhang ◽  
Ahmad Umar ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Electrocatalytic Performance

scholarly journals Mechanochemically Synthetized PAN-Based Co-N-Doped Carbon Materials as Electrocatalyst for Oxygen Evolution Reaction

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 290
Author(s):  
Paulette Gómez-López ◽  
José Ángel Salatti-Dorado ◽  
Daily Rodríguez-Padrón ◽  
Manuel Cano ◽  
Clemente G. Alvarado-Beltrán ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Photoelectron Spectroscopy ◽  
Carbon Nanomaterials ◽  
Carbon Materials ◽  
Catalytic Performance ◽  
X Ray Diffraction ◽  
New Class ◽  
Electrocatalytic Performance ◽  
Alkaline Environments ◽  
Metal Doped

We report a new class of polyacrylonitrile (PAN)-based Co-N-doped carbon materials that can act as suitable catalyst for oxygen evolution reactions (OER). Different Co loadings were mechanochemically added into post-consumed PAN fibers. Subsequently, the samples were treated at 300 °C under air (PAN-A) or nitrogen (PAN-N) atmosphere to promote simultaneously the Co3O4 species and PAN cyclization. The resulting electrocatalysts were fully characterized and analyzed by X-ray diffraction (XRD) and photoelectron spectroscopy (XPS), transmission (TEM) and scanning electron (SEM) microscopies, as well as nitrogen porosimetry. The catalytic performance of the Co-N-doped carbon nanomaterials were tested for OER in alkaline environments. Cobalt-doped PAN-A samples showed worse OER electrocatalytic performance than their homologous PAN-N ones. The PAN-N/3% Co catalyst exhibited the lowest OER overpotential (460 mV) among all the Co-N-doped carbon nanocomposites, reaching 10 mA/cm2. This work provides in-depth insights on the electrocatalytic performance of metal-doped carbon nanomaterials for 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.

scholarly journals The role of catalyst–support interactions in oxygen evolution anodes based on Co(OH)2 nanoparticles and carbon microfibers

2020 ◽  
Vol 10 (14) ◽  
pp. 4513-4521
Author(s):  
Laura Mallón ◽  
Nuria Romero ◽  
Alicia Jiménez ◽  
Elena Martín Morales ◽  
José Alemán ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Catalyst Support ◽  
Electrocatalytic Performance ◽  
Metal Support ◽  
Carbon Microfibers

A set of OER electrodes based on Co(OH)2 nanoparticles and carbon microfibers of tailored composition is reported, which allows extracting valuable insights on the influence of the metal-support interface in their electrocatalytic performance.

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).

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