Optimizing the Size of Platinum Nanoparticles for Enhanced Mass Activity in the Electrochemical Oxygen Reduction Reaction

2019 ◽  
Vol 58 (28) ◽  
pp. 9596-9600 ◽  
Author(s):  
Batyr Garlyyev ◽  
Kathrin Kratzl ◽  
Marlon Rück ◽  
Jan Michalička ◽  
Johannes Fichtner ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Platinum Nanoparticles ◽  
Reduction Reaction ◽  
Mass Activity ◽  
Electrochemical Oxygen

Mechanism of Electrochemical Oxygen Reduction Reaction at Two-Dimensional Pt-doped MoSe2 Material: An Efficient Electrocatalyst

2021 ◽  
Author(s):  
Shrish Nath Upadhyay ◽  
Srimanta Pakhira
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Clean Energy ◽  
Reduction Reaction ◽  
Electrochemical Reactions ◽  
Two Dimensional ◽  
O2 Reduction ◽  
Energy Conversion Systems ◽  
Electrochemical Oxygen

The O2 reduction reaction (ORR) is one promising reaction in clean energy conversion systems such as fuel cells, metal-air batteries, electrochemical reactions, etc. Pt shows excellent electrocatalytic activities for ORR,...

scholarly journals Enhanced Electrocatalytic Activity and Stability toward the Oxygen Reduction Reaction with Unprotected Pt Nanoclusters

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 955 ◽  
Author(s):  
Jing Liu ◽  
Jiao Yin ◽  
Bo Feng ◽  
Tao Xu ◽  
Fu Wang
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Specific Activity ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Top Down ◽  
Methanol Tolerance ◽  
Pt Nanoclusters ◽  
Mass Activity

The Pt particles within diameters of 1–3 nm known as Pt nanoclusters (NCs) are widely considered to be satisfactory oxygen reduction reaction (ORR) catalysts due to higher electrocatalytic performance and cost effectiveness. However, the utilization of such smaller Pt NCs is always limited by the synthesis strategies, stability and methanol tolerance of Pt. Herein, unprotected Pt NCs (~2.2 nm) dispersed on carbon nanotubes (CNTs) were prepared via a modified top-down approach using liquid Li as a solvent to break down the bulk Pt. Compared with the commercial Pt/C, the resultant Pt NCs/CNTs catalyst (Pt loading: 10 wt.%) exhibited more desirable ORR catalytic performance in 0.1 M HClO4. The specific activity (SA) and mass activity (MA) at 0.9 V for ORR over Pt NCs/CNTs were 2.5 and 3.2 times higher than those over the commercial Pt/C (Pt loading: 20 wt.%). Meanwhile, the Pt NCs/CNTs catalyst demonstrated more satisfactory stability and methanol tolerance. Compared with the obvious loss (~69%) of commercial Pt/C, only a slight current decrease (~10%) was observed for Pt NCs/CNTs after the chronoamperometric measurement for 2 × 104 s. Hence, the as-prepared Pt NCs/CNTs material displays great potential as a practical ORR catalyst.

Yttrium Oxide/Gadolinium Oxide-Modified Platinum Nanoparticles as Cathodes for the Oxygen Reduction Reaction

ChemPhysChem ◽  
2014 ◽  
Vol 15 (10) ◽  
pp. 2136-2144 ◽  
Author(s):  
Yun Luo ◽  
Aurélien Habrioux ◽  
Laura Calvillo ◽  
Gaetano Granozzi ◽  
Nicolas Alonso-Vante
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Yttrium Oxide ◽  
Platinum Nanoparticles ◽  
Gadolinium Oxide ◽  
Reduction Reaction

Durability study of platinum nanoparticles supported on gas-phase synthesized graphene in oxygen reduction reaction conditions

2019 ◽  
Vol 467-468 ◽  
pp. 1181-1186 ◽  
Author(s):  
Erwan Bertin ◽  
Adrian Münzer ◽  
Sven Reichenberger ◽  
Rene Streubel ◽  
Thomas Vinnay ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Gas Phase ◽  
Platinum Nanoparticles ◽  
Reduction Reaction ◽  
Reaction Conditions
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