One-pot synthesis of B-doped three-dimensional reduced graphene oxide via supercritical fluid for oxygen reduction reaction

2015 ◽  
Vol 17 (6) ◽  
pp. 3552-3560 ◽  
Author(s):  
Yazhou Zhou ◽  
Clive Hsu Yen ◽  
Shaofang Fu ◽  
Guohai Yang ◽  
Chengzhou Zhu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Supercritical Fluid ◽  
Three Dimensional ◽  
Reduction Reaction ◽  
One Pot ◽  
One Pot Synthesis ◽  
Reduced Graphene

B-doped 3D reduced graphene synthesize from a one-pot supercritical fluid technique is an excellent electrocatalyst for oxygen reduction reaction.

One pot in situ synthesis of nano Au–Pd core-shells embedded on reduced graphene oxide for the oxygen reduction reaction

2021 ◽  
Vol 264 ◽  
pp. 114924
Author(s):  
Periyasami Gnanaprakasam ◽  
Aruchamy Gowrisankar ◽  
Shanmugam Senthilkumar ◽  
Arumugam Murugadoss ◽  
Thangavelu Selvaraju ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
In Situ Synthesis ◽  
One Pot ◽  
Reduced Graphene

Facile Fabrication of Bimetallic PtCo Nanoparticles Supported on Three-Dimensional Reduced Graphene Oxide by Ultrasonic-Assisted Method for Oxygen Reduction Reaction

2017 ◽  
Vol 727 ◽  
pp. 322-326 ◽  
Author(s):  
Yi Li ◽  
Juan Yang ◽  
Kai Xu
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Porous Structure ◽  
Oxygen Reduction ◽  
Uniform Distribution ◽  
Reduced Graphene Oxide ◽  
Three Dimensional ◽  
Reduction Reaction ◽  
Reduced Graphene ◽  
Ultrasonic Assisted

High platinum requirements in electrocatalyst bring about huge expenditure, which hinders the commercialization and wide adoption of proton electrolyte membrane fuel cells (PEMFCs). Therefore, developing new fuel cell catalysts with excellent oxygen reduction reaction (ORR) performance may be a potential way to solve this drawback. In this paper, a facile ultrasonic-assisted method is introduced to synthesize bimetallic PtCo nanoparticles supported on three-dimensional reduced graphene oxide (Pt-Co/3DrGO). Results indicate that PtCo nanoparticles with alloy structure, small size (12.4 nm), and uniform distribution are well-dispersed onto rGO sheets. With 3D porous structure, the fabricated Pt-Co/3DrGO catalyst exhibits better ORR activity and long-term stability than that of commercial Pt/C (20 wt%). The increased electrocatalytic activity is attributed to the formation of 3D porous structure together with the effective surface structure and the highly uniform distribution of the PtCo alloy nanoparticles on rGO sheets.

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