Active Methanol Oxidation Reaction by Enhanced CO Tolerance on Bimetallic Pt/Ir Electrocatalysts Using Electronic and Bifunctional Effects

2018 ◽  
Vol 10 (46) ◽  
pp. 39581-39589 ◽  
Author(s):  
Soonchul Kwon ◽  
Dong Jin Ham ◽  
Taeyoon Kim ◽  
Yongju Kwon ◽  
Seung Geol Lee ◽  
...  
2019 ◽  
Vol 473 ◽  
pp. 943-950 ◽  
Author(s):  
Yajing Wang ◽  
Jiankang Wang ◽  
Guokang Han ◽  
Chunyu Du ◽  
Yongrong Sun ◽  
...  

2016 ◽  
Vol 4 (5) ◽  
pp. 1579-1585 ◽  
Author(s):  
Xuewei Du ◽  
Shuiping Luo ◽  
Hongyu Du ◽  
Min Tang ◽  
Xiangdong Huang ◽  
...  

Monodisperse PtCu nanoparticles have been synthesized and can be self-assembled via adding oleylamine (OAM), and they show higher activity, stability and better CO tolerance compared with Pt/C toward the methanol oxidation reaction.


2018 ◽  
Vol 43 (36) ◽  
pp. 17064-17068 ◽  
Author(s):  
Guangwen Feng ◽  
Zhanchang Pan ◽  
Yanbin Xu ◽  
Haijiao Chen ◽  
Guowei Xia ◽  
...  

2016 ◽  
Vol 4 (20) ◽  
pp. 7674-7682 ◽  
Author(s):  
Yaqiang Duan ◽  
Ye Sun ◽  
Lei Wang ◽  
Ying Dai ◽  
Baibing Chen ◽  
...  

To improve the sluggish kinetics of the methanol oxidation reaction (MOR), one efficient way is to improve the properties of catalyst supports to enhance the activity and durability of Pt-based catalysts.


2014 ◽  
Vol 13 (05n06) ◽  
pp. 1460012
Author(s):  
Shenying Wei ◽  
Huaizhi Gao ◽  
Haibo Li ◽  
Rui Li ◽  
Jifeng Liu

Three Pt - Cu alloys ( Pt 0.3 Cu 0.7, Pt 0.5 Cu 0.5, and Pt 0.7 Cu 0.3) with different Cu contents were synthesized by adjusting the Pt / Cu precursor ratio, and their electrocatalytic activities for methanol oxidation reaction (MOR) were systematically studied. Component and microstructure study revealed that the relationship between the lattice parameters and Cu content followed the Vegard's law. Electrochemistry measurement showed that the MOR catalytic activity for Pt - Cu alloys displayed a dependency on the Cu content, and it decreased following: Pt 0.3 Cu 0.7 > Pt 0.5 Cu 0.5 > Pt 0.7 Cu 0.3. Among the three Pt - Cu alloys, the Pt 0.3 Cu 0.7 alloy exhibited the highest oxidation current density and best CO tolerance activity. Density functional theory simulation calculation, taking into account the shrinking of Pt - Cu alloy's lattice after Cu incorporation, confirmed that the adsorption energy of CO also displayed a dependency on the Cu content in Pt - Cu alloys, and it increased following: Pt 0.3 Cu 0.7 < Pt 0.5 Cu 0.5 < Pt 0.7 Cu 0.3 < Pt , which could rationally explain the best CO tolerance ability for the Pt 0.3 Cu 0.7.


Rare Metals ◽  
2013 ◽  
Vol 33 (3) ◽  
pp. 337-342 ◽  
Author(s):  
Yan-Ni Wu ◽  
Shi-Jun Liao ◽  
Hai-Fu Guo ◽  
Xiang-Ying Hao ◽  
Zhen-Xing Liang

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