scholarly journals Carbon-Incorporated Nickel-Cobalt Mixed Metal Phosphide Nanoboxes with Enhanced Electrocatalytic Activity for Oxygen Evolution

2017 ◽  
Vol 56 (14) ◽  
pp. 3897-3900 ◽  
Author(s):  
Peilei He ◽  
Xin-Yao Yu ◽  
Xiong Wen David Lou
Keyword(s):  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Metal Phosphide ◽  
Mixed Metal ◽  
Nickel Cobalt

Transformation of homobimetallic MOFs into nickel–cobalt phosphide/nitrogen-doped carbon polyhedral nanocages for efficient oxygen evolution electrocatalysis

2017 ◽  
Vol 5 (35) ◽  
pp. 18839-18844 ◽  
Author(s):  
Xueping Zhang ◽  
Liang Huang ◽  
Qingqing Wang ◽  
Shaojun Dong
Keyword(s):  
Crystal Lattice ◽  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Nitrogen Doped ◽  
Cobalt Phosphide ◽  
Nickel Cobalt ◽  
Nitrogen Doped Carbon

NiCoP/NC polyhedral nanocages with homogeneous introduction of Ni into the CoP crystal lattice exhibit significantly improved electrocatalytic activity towards the OER.

scholarly journals Spinel of Nickel-Cobalt Oxide with Rod-Like Architecture as Electrocatalyst for Oxygen Evolution Reaction

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 3918
Author(s):  
Anna Dymerska ◽  
Wojciech Kukułka ◽  
Marcin Biegun ◽  
Ewa Mijowska
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Active Sites ◽  
Solvothermal Reaction ◽  
Step Method ◽  
One Pot ◽  
Widespread Application ◽  
Nickel Cobalt ◽  
Slow Kinetics ◽  
Nickel Cobalt Oxide

The renewable energy technologies require electrocatalysts for reactions, such as the oxygen and/or hydrogen evolution reaction (OER/HER). They are complex electrochemical reactions that take place through the direct transfer of electrons. However, mostly they have high over-potentials and slow kinetics, that is why they require electrocatalysts to lower the over-potential of the reactions and enhance the reaction rate. The commercially used catalysts (e.g., ruthenium nanoparticles—Ru, iridium nanoparticles—Ir, and their oxides: RuO2, IrO2, platinum—Pt) contain metals that have poor stability, and are not economically worthwhile for widespread application. Here, we propose the spinel structure of nickel-cobalt oxide (NiCo2O4) fabricated to serve as electrocatalyst for OER. These structures were obtained by a facile two-step method: (1) One-pot solvothermal reaction and subsequently (2) pyrolysis or carbonization, respectively. This material exhibits novel rod-like morphology formed by tiny spheres. The presence of transition metal particles such as Co and Ni due to their conductivity and electron configurations provides a great number of active sites, which brings superior electrochemical performance in oxygen evolution and good stability in long-term tests. Therefore, it is believed that we propose interesting low-cost material that can act as a super stable catalyst in OER.

Hierarchically porous FeNi3@FeNi layered double hydroxide nanostructures: One-step fast electrodeposition and highly efficient electrocatalytic performances for overall water splitting

2021 ◽  
Author(s):  
Zihao Liu ◽  
Shifeng Li ◽  
Fangfang Wang ◽  
Mingxia Li ◽  
Yonghong Ni
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hierarchically Porous ◽  
One Step ◽  
Double Hydroxide

FeNi-layered double hydroxide (LDH) is thought to be an excellent electrocatalyst for oxygen evolution reaction (OER), but it always shows extremely poor electrocatalytic activity toward hydrogen evolution reaction (HER) in...

scholarly journals Nickel-cobalt oxalate as efficient non-precious electrocatalyst for improved alkaline oxygen evolution reaction

2021 ◽  
Author(s):  
Venkataramanan Mahalingam ◽  
Sourav Ghosh ◽  
Rajkumar Jana ◽  
Sagar Ganguli ◽  
Harish Reddy Inta ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Next Generation ◽  
Synthetic Strategy ◽  
Nickel Cobalt ◽  
Cobalt Oxalate

The quest for developing next-generation non-precious electrocatalyst is getting aroused in recent times. Herein, we have designed and developed a low cost electrocatalyst by ligand-assisted synthetic strategy in aqueous medium....

Rapid production of mixed metal oxy-fluoride nanoplates as superior oxygen evolution electrocatalysts

2021 ◽  
Vol 291 ◽  
pp. 129530
Author(s):  
Kenuo Zhou ◽  
Zebi Zhao ◽  
Jiaxi Zhang ◽  
Haonan Chang ◽  
Xian He ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Mixed Metal ◽  
Rapid Production
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