scholarly journals Ultrafine jagged platinum nanowires enable ultrahigh mass activity for the oxygen reduction reaction

Science ◽  
2016 ◽  
Vol 354 (6318) ◽  
pp. 1414-1419 ◽  
Author(s):  
Mufan Li ◽  
Zipeng Zhao ◽  
Tao Cheng ◽  
Alessandro Fortunelli ◽  
Chih-Yen Chen ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Platinum Nanowires ◽  
Mass Activity

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.

High Specific and Mass Activity for the Oxygen Reduction Reaction for Thin Film Catalysts of Sputtered Pt3Y

2017 ◽  
Vol 4 (13) ◽  
pp. 1700311 ◽  
Author(s):  
Niklas Lindahl ◽  
Eleonora Zamburlini ◽  
Ligang Feng ◽  
Henrik Grönbeck ◽  
Maria Escudero-Escribano ◽  
...  
Keyword(s):  
Thin Film ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Thin Film Catalysts ◽  
Mass Activity

Heterogeneous Cu–Pd binary interface boosts stability and mass activity of atomic Pt clusters in the oxygen reduction reaction

Nanoscale ◽  
2017 ◽  
Vol 9 (21) ◽  
pp. 7207-7216 ◽  
Author(s):  
Hsin-Yi Tiffany Chen ◽  
Jyh-Pin Chou ◽  
Cheng-Yang Lin ◽  
Chih-Wei Hu ◽  
Ya-Tang Yang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Mass Activity

Coordination-controlled single-atom tungsten as a non-3d-metal oxygen reduction reaction electrocatalyst with ultrahigh mass activity

Nano Energy ◽  
2019 ◽  
Vol 60 ◽  
pp. 394-403 ◽  
Author(s):  
Zhigang Chen ◽  
Wenbin Gong ◽  
Zhibo Liu ◽  
Shan Cong ◽  
Zuhui Zheng ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Mass Activity

scholarly journals Oxygen Reduction Reaction: Rapid Prediction of Mass Activity of Nanostructured Platinum Electrocatalysts

2018 ◽  
Vol 9 (15) ◽  
pp. 4463-4468 ◽  
Author(s):  
Marlon Rück ◽  
Aliaksandr Bandarenka ◽  
Federico Calle-Vallejo ◽  
Alessio Gagliardi
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Rapid Prediction ◽  
Mass Activity
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