Phosphate-Doped Carbon Black as Pt Catalyst Support: Co-catalytic Functionality for Dimethyl Ether and Methanol Electro-oxidation

2013 ◽  
Vol 1 (2) ◽  
pp. 448-454 ◽  
Author(s):  
Min Yin ◽  
Yunjie Huang ◽  
Qingfeng Li ◽  
Jens Oluf Jensen ◽  
Lars N. Cleemann ◽  
...  
2002 ◽  
Vol 09 (03n04) ◽  
pp. 1443-1452 ◽  
Author(s):  
C. D. HUANG ◽  
Z. T. XIONG ◽  
J. Y. LIN ◽  
K. L. TAN

In this paper we report the electrochemical behavior of heat-treated carbon blacks and Pt/C catalysts. Cyclic voltammetry indicates that the heat-treated carbon black as catalyst support does not improve the Pt/C catalyst's activity for methanol oxidation. An XPS study of a Pt-loaded carbon black indicates that the amounts of oxidized platinum and oxygen-functional groups on catalysts are decreased when the platinum particles are deposited on the heat-treated carbon surface. These changes in the surface and crystalline structural properties of carbon materials lead to the catalytic activity change in methanol electro-oxidation.


Nanomaterials ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 234 ◽  
Author(s):  
Jing Lu ◽  
Jianbing Zang ◽  
Yanhui Wang ◽  
Yongchao Xu ◽  
Xipeng Xu

2013 ◽  
Vol 10 (5) ◽  
Author(s):  
Qiao-xia Li ◽  
Hong-min Mao ◽  
Jin-guang Li ◽  
Qun-jie Xu

Nitric acid modified Mesoporous carbon (CMK-3) supported Pt particles have been prepared by chemical reduction with NaBH4 as a reducing agent. Energy dispersive spectrometer shows that the catalysts have some oxygenic functional groups. The activity of the composite catalysts for methanol electro-oxidation was investigated by using cyclic votammogram and chronoamperometry in acid media. The results indicated that modified mesoporous carbon can improve the catalytic ability of Pt catalyst for methanol electro-oxidation and antipoison capability for CO. The composite electrode modified by 0.23 g nitric acid has the highest electrochemical ability.


Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 763
Author(s):  
Yoon-Hee Kim ◽  
Hyeonkyeong Lee ◽  
Dong-Seop Choi ◽  
Jiyull Kim ◽  
Hyun-Sung Jang ◽  
...  

The development of efficient catalyst materials that can drive high catalytic performance is challenging. Here, we report a well-defined hollow mesoporous TiN nanostructure for use as Pt catalyst support material for methanol electro-oxidation. The hollow TiN nanostructure was synthesized by the ammonia nitridation of pre-synthesized mother hollow anatase TiO2, which was prepared by SiO2 template-assisted sol–gel synthesis followed by chemical etching, acid treatment, and sequential calcination. The variation in the ammonia nitridation temperature allowed the crystalline properties of the samples to be finely tuned. As the ammonia nitrification temperature increased, the crystallinity of the resulting hollow TiN continuously increased, and the corresponding Pt catalysts showed enhanced activity toward methanol electro-oxidation. The hollow TiN-800 sample (H-TiN-800), with a well-developed pure TiN phase, exhibited the highest electrical conductivity and the lowest resistance. The corresponding Pt/H-TiN-800 catalyst exhibited significantly enhanced catalytic activity. In this study, we systemically analyzed the physicochemical characteristics and electrochemical performance of hollow TiN samples and their corresponding Pt catalysts.


2008 ◽  
Vol 53 (28) ◽  
pp. 8298-8304 ◽  
Author(s):  
Qian Zhang ◽  
Zhongfang Li ◽  
Suwen Wang ◽  
Wei Xing ◽  
Rujun Yu ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 68989-68996 ◽  
Author(s):  
Nan He ◽  
Chuanguang Qin ◽  
Rumin Wang ◽  
Shuhui Ma ◽  
Yi Wang ◽  
...  

Carbon black supported Pd–Gd catalysts (Pd–xGd/C, x is weight percent in catalyst) with different amounts of Gd were prepared by a simultaneous reduction reaction with sodium borohydride in aqueous solution.


2007 ◽  
Vol 52 (19) ◽  
pp. 5781-5788 ◽  
Author(s):  
Yan Liu ◽  
Masashi Muraoka ◽  
Shigenori Mitsushima ◽  
Ken-Ichiro Ota ◽  
Nobuyuki Kamiya

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