Enhanced activity and durability of Pt nanoparticles supported on reduced graphene oxide for oxygen reduction catalysts of proton exchange membrane fuel cells

2020 ◽  
Vol 352 ◽  
pp. 10-17 ◽  
Author(s):  
Jemin Kim ◽  
Sun-I Kim ◽  
Seung Geun Jo ◽  
Na Eun Hong ◽  
Bora Ye ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Proton Exchange Membrane ◽  
Pt Nanoparticles ◽  
Proton Exchange ◽  
Reduced Graphene ◽  
Oxygen Reduction Catalysts ◽  
Exchange Membrane ◽  
Reduction Catalysts

1,5‐Diaza‐3,7‐Diphosphacyclooctane Bis ‐Ligand Nickel(II) Complexes as Oxygen Reduction Catalysts for Proton‐Exchange Membrane Fuel Cells

2019 ◽  
Vol 7 (7) ◽  
pp. 1900020
Author(s):  
Marsil Kadirov ◽  
Andrey Karasik ◽  
Irek Nizameev ◽  
Yulia Spiridonova ◽  
Mikhail Khrizanforov ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Oxygen Reduction Catalysts ◽  
Exchange Membrane ◽  
Reduction Catalysts

Is reduced graphene oxide favorable for nonprecious metal oxygen-reduction catalysts?

Carbon ◽  
2016 ◽  
Vol 102 ◽  
pp. 346-356 ◽  
Author(s):  
Wei Gao ◽  
Dana Havas ◽  
Shiva Gupta ◽  
Qin Pan ◽  
Nanfei He ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Oxygen Reduction Catalysts ◽  
Reduction Catalysts ◽  
Nonprecious Metal

Optimizing Reduced Graphene Oxide with Metallic Nanoparticles for Increasing the Efficiency of Proton Exchange Membrane Fuel Cells

2014 ◽  
Vol 1735 ◽  
Author(s):  
Rebecca Isseroff ◽  
Arthur Chen ◽  
Lee Blackburn ◽  
Justin Lish ◽  
Long Tao Han ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fuel Cells ◽  
Reduced Graphene Oxide ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Pt Catalyst ◽  
Reduced Graphene ◽  
Metallic Salts ◽  
Partially Reduced Graphene Oxide ◽  
Exchange Membrane

ABSTRACTThe oxidation of CO to CO2 is necessary in the operation of Proton Exchange Membrane Fuel Cells (PEMFCs) since even a small amount of CO that is formed when the PEMFC is operated under ambient conditions is sufficient to poison the Pt catalyst in the electrodes and degrade the performance. Operation using higher loads of Pt catalysts or increasing the purity of the H2 input gas significantly adds to the cost, adversely impacting the commercial development of PEMFCs. We combined graphene oxide (GO) with metallic salts and partially reduced the mixture with sodium borohydride, yielding a metallized form of partially reduced graphene oxide (prGO) platelets that remained in solution. When these platelets were coated on the Nafion membrane of a PEMFC, a 72% increase in the power output was observed, whereas a 62% increase was observed when the membrane was coated with partially reduced graphene oxide without the metallic salts. Results will be presented for AuGO/prGO, PtGO/prGO, and AuPtGO/prGO combinations.

Microbe-engaged synthesis of carbon dot-decorated reduced graphene oxide as high-performance oxygen reduction catalysts

2016 ◽  
Vol 4 (19) ◽  
pp. 7222-7229 ◽  
Author(s):  
Lihua Zhou ◽  
Peng Fu ◽  
Yueqiang Wang ◽  
Lihua Sun ◽  
Yong Yuan
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Reduction Reaction ◽  
Microbial Reduction ◽  
Carbon Dot ◽  
Reduced Graphene ◽  
Oxygen Reduction Catalysts ◽  
Reduction Catalysts

A carbon dot-decorated reduced graphene oxide catalyst for the oxygen reduction reaction is developed via a combination of microbial reduction and hydrothermal treatment.

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