Preparation and Evaluation of Edge Selective Sulfonated Graphene by Chlorosulfuric Acid as an Active Metal- Free Electrocatalyst for Oxygen Reduction Reaction in Alkaline Media

2017 ◽  
Vol 2 (34) ◽  
pp. 11211-11217 ◽  
Author(s):  
Amir Abdolmaleki ◽  
Shadpour Mallakpour ◽  
Manzar Mahmoudian
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Metal Free ◽  
Active Metal ◽  
Sulfonated Graphene ◽  
Preparation And Evaluation

Carbon fragments as highly active metal-free catalysts for the oxygen reduction reaction: a mechanistic study

Nanoscale ◽  
2019 ◽  
Vol 11 (41) ◽  
pp. 19422-19428 ◽  
Author(s):  
Keke Mao ◽  
Wei Zhang ◽  
Jun Dai ◽  
Xiao Cheng Zeng
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Group Symmetry ◽  
Mechanistic Study ◽  
Metal Free ◽  
Highly Active ◽  
Active Metal

Carbon fullerene fragments with low group-symmetry are highly active catalysts for the oxygen reduction reaction.

N-doped porous carbon from Sargassum spp. as metal-free electrocatalysts for oxygen reduction reaction in alkaline media

2017 ◽  
Vol 42 (51) ◽  
pp. 30274-30283 ◽  
Author(s):  
B. Escobar ◽  
K.Y. Pérez-Salcedo ◽  
I.L. Alonso-Lemus ◽  
D. Pacheco ◽  
Romeli Barbosa
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Metal Free

scholarly journals Molten-Salt-Assisted Synthesis of Nitrogen-Doped Carbon Nanosheets Derived from Biomass Waste of Gingko Shells as Efficient Catalyst for Oxygen Reduction Reaction

Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2124
Author(s):  
Wei Hong ◽  
Xia Wang ◽  
Hongying Zheng ◽  
Rong Li ◽  
Rui Wu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Specific Capacity ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Biomass Waste ◽  
Active Nitrogen ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Hierarchical Porous

Developing superior efficient and durable oxygen reduction reaction (ORR) catalysts is critical for high-performance fuel cells and metal–air batteries. Herein, we successfully prepared a 3D, high-level nitrogen-doped, metal-free (N–pC) electrocatalyst employing urea as a single nitrogen source, NaCl as a fully sealed nanoreactor and gingko shells, a biomass waste, as carbon precursor. Due to the high content of active nitrogen groups, large surface area (1133.8 m2 g−1), and 3D hierarchical porous network structure, the as-prepared N–pC has better ORR electrocatalytic performance than the commercial Pt/C and most metal-free carbon materials in alkaline media. Additionally, when N–pC was used as a catalyst for an air electrode, the Zn–air battery (ZAB) had higher peak power density (223 mW cm−2), larger specific-capacity (755 mAh g−1) and better rate-capability than the commercial Pt/C-based one, displaying a good application prospect in metal-air batteries.

Transforming reed waste into a highly active metal-free catalyst for oxygen reduction reaction

Nano Energy ◽  
2019 ◽  
Vol 62 ◽  
pp. 700-708 ◽  
Author(s):  
Qiliang Wei ◽  
Mohamed Cherif ◽  
Gaixia Zhang ◽  
Ali Almesrati ◽  
Jiatang Chen ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Metal Free ◽  
Highly Active ◽  
Active Metal

Low-cost sonochemical synthesis of nitrogen-doped graphene metal-free electrocatalyst for the oxygen reduction reaction in alkaline media

2017 ◽  
Vol 42 (51) ◽  
pp. 30330-30338 ◽  
Author(s):  
I.L. Alonso-Lemus ◽  
M.Z. Figueroa-Torres ◽  
A.B. García-Hernández ◽  
B. Escobar-Morales ◽  
F.J. Rodríguez-Varela ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Low Cost ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Sonochemical Synthesis ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene
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