scholarly journals 3D porous graphitic nanocarbon for enhancing the performance and durability of Pt catalysts: a balance between graphitization and hierarchical porosity

2019 ◽  
Vol 12 (9) ◽  
pp. 2830-2841 ◽  
Author(s):  
Zhi Qiao ◽  
Sooyeon Hwang ◽  
Xing Li ◽  
Chenyu Wang ◽  
Widitha Samarakoon ◽  
...  

A carbon support with favorable balance between graphitization and hierarchical porosity is promising to address carbon corrosion issue in cathode catalysts for proton exchange membrane fuel cells (PEMFCs).

2021 ◽  
Author(s):  
Hong Zhu ◽  
Qingjun Chen ◽  
Jinghua Yu ◽  
Qian Zhou ◽  
Fanghui Wang ◽  
...  

The corrosion of carbon support is one of key factors causing deactivation of Pt-based oxygen reduction reaction (ORR) catalysts for proton exchange membrane fuel cells. In this work, a highly...


RSC Advances ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 472-480 ◽  
Author(s):  
P. Dhanasekaran ◽  
Sharon R. Williams ◽  
D. Kalpana ◽  
Santoshkumar D. Bhat

Corrosion during the accelerated stress test for Pt on carbon and Pt on Zr–C 3 composite representing the steps for reduced carbon corrosion, stabilized Pt nanoparticles and re-deposition of Pt nanoparticles on the ZrO2:C composite.


2018 ◽  
Vol 35 (7) ◽  
pp. 1547-1555 ◽  
Author(s):  
Hyanjoo Park ◽  
Kyung Min Kim ◽  
Hoyoung Kim ◽  
Dong-Kwon Kim ◽  
Yong Sun Won ◽  
...  

2013 ◽  
Vol 58 (1) ◽  
pp. 1277-1283
Author(s):  
N.-I. Kim ◽  
J. Seong ◽  
M.-J. Yang ◽  
S.-H. Cho ◽  
J.-Y. Park ◽  
...  

ChemSusChem ◽  
2013 ◽  
Vol 7 (1) ◽  
pp. 135-145 ◽  
Author(s):  
Xiangzhi Cui ◽  
Jianlin Shi ◽  
Yongxia Wang ◽  
Yu Chen ◽  
Lingxia Zhang ◽  
...  

2014 ◽  
Vol 262 ◽  
pp. 488-493 ◽  
Author(s):  
Bing Li ◽  
Zeyu Yan ◽  
Drew C. Higgins ◽  
Daijun Yang ◽  
Zhongwei Chen ◽  
...  

2013 ◽  
Vol 1497 ◽  
Author(s):  
Anurag Y Kawde ◽  
Alexander W O'Toole ◽  
Xiaoli He ◽  
Richard Phillips ◽  
Adam Lemke ◽  
...  

ABSTRACTConventional carbon electrode supports for platinum used in proton exchange membrane (PEM) fuel cell assemblies have issues related to carbon corrosion at typical cell operating and transient conditions. This corrosion gives rise to the evolution of greenhouse gases such as CO2, eventually degrading the carbon support and causing a loss of the catalyst specific area necessary to achieve the desired electrochemical performance. In this study, preliminary results are presented for Pt-functionalized TiO2 nanotube arrays as cathode catalyst supports for PEM fuel cells. The electrochemically synthesized TiO2 nanotube arrays were functionalized by different weight % of Pt via a solution-based approach using a dilute aqueous salt solution of hexachloroplatanic acid. Electron-beam based characterization techniques were used to study the structural and morphological features of the as-synthesized TiO2 nanotube arrays and functionalized Pt/TiO2 nanotube arrays. The electrochemical performance of the functionalized TiO2 nanotube arrays was studied by using cyclic voltammetry.


2014 ◽  
Vol 132 ◽  
pp. 356-363 ◽  
Author(s):  
Kun Cheng ◽  
Daping He ◽  
Tao Peng ◽  
Haifeng Lv ◽  
Mu Pan ◽  
...  

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