scholarly journals Erratum: 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):  
Alkaline Media ◽  
Nitrogen Doped ◽  
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.

Electrocatalytic oxygen reduction on nitrogen-doped graphene in alkaline media

2014 ◽  
Vol 147 ◽  
pp. 369-376 ◽  
Author(s):  
Merilin Vikkisk ◽  
Ivar Kruusenberg ◽  
Urmas Joost ◽  
Eugene Shulga ◽  
Ilmar Kink ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Alkaline Media ◽  
Nitrogen Doped ◽  
Electrocatalytic Oxygen Reduction ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

An enhanced oxygen electrode catalyst by incorporating CoO/SnO2 nanoparticles in crumpled nitrogen-doped graphene in alkaline media

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 50017-50026 ◽  
Author(s):  
Xiu-Xiu Ma ◽  
Xing-Quan He
Keyword(s):  
Sno2 Nanoparticles ◽  
Oxygen Electrode ◽  
Alkaline Media ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

An advanced and highly efficient oxygen electrode catalyst was fabricated by anchoring CoO/SnO2 nanocrystals on nitrogen-doped graphene.

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