scholarly journals Operando X-ray characterization of high surface area iridium oxides to decouple their activity losses for the oxygen evolution reaction

2019 ◽  
Vol 12 (10) ◽  
pp. 3038-3052 ◽  
Author(s):  
Mauro Povia ◽  
Daniel F. Abbott ◽  
Juan Herranz ◽  
Adrian Heinritz ◽  
Dmitry Lebedev ◽  
...  
Keyword(s):  
Surface Area ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Surface ◽  
High Surface Area ◽  
Oxide Catalysts ◽  
X Ray ◽  
Iridium Oxides ◽  
Evolution Of Oxygen

Operando X-ray techniques allow an unprecedented, quantitative discrimination of the instability mechanisms affecting Ir-oxide catalysts for the evolution of oxygen.

High Surface Area NiCoP Nanostructure as Efficient Water Splitting Electrocatalyst for the Oxygen Evolution Reaction

2021 ◽  
pp. 111312
Author(s):  
Sisir Maity ◽  
Dheeraj Kumar Singh ◽  
Divya Bhutani ◽  
Suchitra Prasad ◽  
Umesh V. Waghmare ◽  
...  
Keyword(s):  
Surface Area ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Surface ◽  
High Surface Area

Coupling Ag-doping and rich oxygen vacancies in mesoporous NiCoO nanorods supported on nickel foam for highly efficient oxygen evolution

2017 ◽  
Vol 4 (11) ◽  
pp. 1783-1790 ◽  
Author(s):  
Kai-Li Yan ◽  
Jing-Qi Chi ◽  
Zi-Zhang Liu ◽  
Bin Dong ◽  
Shan-Shan Lu ◽  
...  
Keyword(s):  
Surface Area ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Oxygen Vacancies ◽  
Nickel Foam ◽  
High Surface ◽  
High Surface Area ◽  
Ag Doping ◽  
Highly Efficient

Ag-doped mesoporous NiCoO nanorods as efficient and stable electrocatalysts for oxygen evolution reaction have been synthesized with desirable conductivity, high surface area and rich oxygen vacancies.

Core–shell-type ZIF-8@ZIF-67@POM hybrids as efficient electrocatalysts for the oxygen evolution reaction

2019 ◽  
Vol 6 (9) ◽  
pp. 2514-2520 ◽  
Author(s):  
Yan Wang ◽  
Yuyin Wang ◽  
Li Zhang ◽  
Chun-Sen Liu ◽  
Huan Pang
Keyword(s):  
Synergistic Effect ◽  
Surface Area ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Surface ◽  
High Surface Area ◽  
Coprecipitation Method ◽  
Core Shell ◽  
Shell Type

ZIF-8@ZIF-67@POM hybrids were synthesized using a simple coprecipitation method, and they exhibit remarkable performance in OER, with the synergistic effect between POM and ZIF species, their regular architecture and their high surface area.

scholarly journals Towards Stable and Conductive Titanium Oxynitride High‐Surface‐Area Support for Iridium Nanoparticles as Oxygen Evolution Reaction Electrocatalyst

ChemCatChem ◽  
2019 ◽  
Vol 11 (20) ◽  
pp. 4982-4982
Author(s):  
Marjan Bele ◽  
Kevin Stojanovski ◽  
Primoz Jovanovič ◽  
Leonard Moriau ◽  
Gorazd Koderman Podboršek ◽  
...  
Keyword(s):  
Surface Area ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Surface ◽  
High Surface Area ◽  
Iridium Nanoparticles

Combinatorial Study of High-Surface-Area Binary and Ternary Electrocatalysts for the Oxygen Evolution Reaction

2009 ◽  
Vol 156 (3) ◽  
pp. B363 ◽  
Author(s):  
K. C. Neyerlin ◽  
Greg Bugosh ◽  
Rhys Forgie ◽  
Zengcai Liu ◽  
Peter Strasser
Keyword(s):  
Surface Area ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Surface ◽  
High Surface Area

Plasma-Engraved Co3 O4 Nanosheets with Oxygen Vacancies and High Surface Area for the Oxygen Evolution Reaction

2016 ◽  
Vol 128 (17) ◽  
pp. 5363-5367 ◽  
Author(s):  
Lei Xu ◽  
Qianqian Jiang ◽  
Zhaohui Xiao ◽  
Xingyue Li ◽  
Jia Huo ◽  
...  
Keyword(s):  
Surface Area ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Oxygen Vacancies ◽  
High Surface ◽  
High Surface Area

scholarly journals Nanotubular Titanium Oxynitride with an Ultra-Low Iridium Loading as a High-Performance Oxygen-Evolution-Reaction Thin-Film Electrode

2020 ◽  
Author(s):  
Marjan Bele ◽  
Primož Jovanovič ◽  
Živa Marinko ◽  
Sandra Drev ◽  
Vid Simon Šelih ◽  
...  
Keyword(s):  
Thin Film ◽  
Oxygen Evolution ◽  
Photoelectron Spectroscopy ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
High Surface ◽  
High Surface Area ◽  
Additional Contribution ◽  
X Ray ◽  
Metal Support Interaction

The present study targets one of the grand challenges of electrochemical hydrogen production: a durable and cost-effective oxygen-evolution catalyst. We present a thin-film composite electrode with a unique morphology and an ultra-low loading of iridium that has extraordinary electrocatalytic properties. This is accomplished by the electrochemical growth of a defined, high-surface-area titanium oxide nanotubular film followed by the nitridation and effective immobilization of iridium nanoparticles. The applicative relevance of this production process is justified by a remarkable oxygen-evolution reaction (OER) activity and high stability. Due to the confinement inside the pores and the strong metal-support interaction (SMSI) effects, the OER exhibited a higher turnover. The high durability is achieved by self-passivation of the titanium oxynitride (TiON) surface layer with TiO<sub>2</sub>, which in addition also effectively embeds the Ir nanoparticles, while still keeping them electrically wired. An additional contribution to the enhanced durability comes from the nitrogen atoms, which according to our DFT calculations reduce the tendency of the Ir nanoparticles to grow. We also introduce an advanced electrochemical characterization platform for the in-depth study of thin-film electrodes. Namely, the entire process of the TiON-Ir electrode’s preparation and the electrochemical evaluation can be tracked with scanning electron microscopy, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) at identical locations. In general, the novel experimental approach allows for the unique morphological, structural and compositional insights into the preparation and electrocatalytic performance of thin films, making it useful also outside electrocatalysis applications.

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