Alkaline Water Electrolysis by NiZn-Double Hydroxide-Derived Porous Nickel Selenide-Nitrogen-Doped Graphene Composite

2018 ◽  
Author(s):  
Ayasha Nadeema ◽  
Priyanka S. Walko ◽  
R. Nandini Devi ◽  
Sreekumar Kurungot
Keyword(s):  
Water Electrolysis ◽  
Porous Nickel ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Nitrogen Doped ◽  
Graphene Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Double Hydroxide

NiZn double hydroxide nanosheet-anchored nitrogen-doped graphene enriched with the γ-NiOOH phase as an activity modulated water oxidation electrocatalyst

Nanoscale ◽  
2017 ◽  
Vol 9 (34) ◽  
pp. 12590-12600 ◽  
Author(s):  
Ayasha Nadeema ◽  
Vishal M. Dhavale ◽  
Sreekumar Kurungot
Keyword(s):  
Water Oxidation ◽  
Composite Catalyst ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Graphene Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Double Hydroxide

We report a facile synthesis of an open, thin layered and γ-NiOOH enriched NiZn-double hydroxide/nitrogen doped graphene composite catalyst exhibiting robust OER activity.

scholarly journals Noble-Metal-Free Iron Nitride/Nitrogen-Doped Graphene Composite for the Oxygen Reduction Reaction

ACS Omega ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 130-139 ◽  
Author(s):  
Tamás Varga ◽  
Lívia Vásárhelyi ◽  
Gergő Ballai ◽  
Henrik Haspel ◽  
Albert Oszkó ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Reduction Reaction ◽  
Iron Nitride ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Graphene Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

scholarly journals Enhanced rate performance of cobalt oxide/nitrogen doped graphene composite for lithium ion batteries

RSC Advances ◽  
2013 ◽  
Vol 3 (15) ◽  
pp. 5003 ◽  
Author(s):  
Dan Li ◽  
Dongqi Shi ◽  
Zhixin Chen ◽  
Huakun Liu ◽  
Dianzeng Jia ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cobalt Oxide ◽  
Lithium Ion ◽  
Rate Performance ◽  
Nitrogen Doped ◽  
Graphene Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

scholarly journals Ruthenium-cobalt nanoalloys encapsulated in nitrogen-doped graphene as active electrocatalysts for producing hydrogen in alkaline media

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Jianwei Su ◽  
Yang Yang ◽  
Guoliang Xia ◽  
Jitang Chen ◽  
Peng Jiang ◽  
...  
Keyword(s):  
Density Functional ◽  
Platinum Group Metal ◽  
Alkaline Media ◽  
Alkaline Water Electrolysis ◽  
Graphene Layers ◽  
Nitrogen Doped ◽  
High Efficient ◽  
Production Of Hydrogen ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Abstract The scalable production of hydrogen could conveniently be realized by alkaline water electrolysis. Currently, the major challenge confronting hydrogen evolution reaction (HER) is lacking inexpensive alternatives to platinum-based electrocatalysts. Here we report a high-efficient and stable electrocatalyst composed of ruthenium and cobalt bimetallic nanoalloy encapsulated in nitrogen-doped graphene layers. The catalysts display remarkable performance with low overpotentials of only 28 and 218 mV at 10 and 100 mA cm−2, respectively, and excellent stability of 10,000 cycles. Ruthenium is the cheapest platinum-group metal and its amount in the catalyst is only 3.58 wt.%, showing the catalyst high activity at a very competitive price. Density functional theory calculations reveal that the introduction of ruthenium atoms into cobalt core can improve the efficiency of electron transfer from alloy core to graphene shell, beneficial for enhancing carbon–hydrogen bond, thereby lowing ΔGH* of HER.

One step synthesis of chlorine-free Pt/Nitrogen-doped graphene composite for oxygen reduction reaction

Carbon ◽  
2018 ◽  
Vol 133 ◽  
pp. 90-100 ◽  
Author(s):  
Tamás Varga ◽  
Ágnes Tímea Varga ◽  
Gergő Ballai ◽  
Henrik Haspel ◽  
Ákos Kukovecz ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Graphene Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
One Step

scholarly journals Custom designed ZnMn2O4/nitrogen doped graphene composite anode validated for sodium ion battery application

RSC Advances ◽  
2017 ◽  
Vol 7 (32) ◽  
pp. 20057-20061 ◽  
Author(s):  
B. Chandra Sekhar ◽  
P. Packiyalakshmi ◽  
N. Kalaiselvi
Keyword(s):  
Ph Control ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Sodium Ion Batteries ◽  
Composite Anode ◽  
Nitrogen Doped ◽  
Graphene Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Battery Application

pH control synthesised ZnMn2O4 nanoparticles embedded in nitrogen doped graphene sheets demonstrate themselves to be a potential anode for sodium-ion batteries.

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