Design of an assembly of pyridine-containing polybenzimidazole, carbon nanotubes and Pt nanoparticles for a fuel cell electrocatalyst with a high electrochemically active surface area

Carbon ◽  
2009 ◽  
Vol 47 (14) ◽  
pp. 3227-3232 ◽  
Author(s):  
Tsuyohiko Fujigaya ◽  
Minoru Okamoto ◽  
Naotoshi Nakashima
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cell ◽  
Surface Area ◽  
Pt Nanoparticles ◽  
Active Surface ◽  
Active Surface Area ◽  
Electrochemically Active ◽  
Fuel Cell Electrocatalyst ◽  
Electrochemically Active Surface

scholarly journals The electrochemical properties of carbon nanotubes and carbon XC-72R and their application as Pt supports§

2010 ◽  
Vol 75 (10) ◽  
pp. 1435-1439 ◽  
Author(s):  
Maja Obradovic
Keyword(s):  
Carbon Nanotubes ◽  
Electron Transfer ◽  
Electrochemical Properties ◽  
Surface Area ◽  
Carbon Materials ◽  
Active Surface ◽  
Active Surface Area ◽  
Electron Transfer Kinetics ◽  
Electrochemically Active ◽  
Electrochemically Active Surface

The results of an investigation of two samples of commercial multi-walled carbon nanotubes and a sample of carbon black, in the raw and activated state, were presented in the lecture. The activation of the carbon materials led to the formation of an abundance of oxygencontaining functional groups on the surface, an increased electrochemically active surface area, an enhanced charge storage ability and a promotion of the electron-transfer kinetics. It was presented that the morphology of the carbon nanotubes is important for the electrochemical properties, because nanotubes with a higher proportion of edge and defect sites showed faster electron transfer and pseudocapacitive redox kinetics. Modification of oxidized nanotubes by ethylenediamine and wrapping by poly(diallyldimethylammonium) chloride led to a decrease in the electrochemically active surface area and to reduced electron-transfer kinetics. Pt nanoparticles prepared by the microwave-assisted polyol method were deposited at the investigated carbon materials. A much higher efficiency of Pt deposition was observed on the modified CNTs than on the activated CNTs. The activity of the synthesized catalyst toward electrochemical oxygen reduction was almost the same as the activity of the commercial Pt/XC-72 catalyst.

Ultrathin nickel boride nanosheets anchored on functionalized carbon nanotubes as bifunctional electrocatalysts for overall water splitting

2019 ◽  
Vol 7 (2) ◽  
pp. 764-774 ◽  
Author(s):  
Xuncai Chen ◽  
Zixun Yu ◽  
Li Wei ◽  
Zheng Zhou ◽  
Shengli Zhai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Active Surface ◽  
Charge Transfer Resistance ◽  
Active Surface Area ◽  
Transfer Resistance ◽  
Functionalized Carbon Nanotubes ◽  
Electrochemically Active ◽  
Metal Borides ◽  
Electrochemically Active Surface

Carbon nanotubes increase electrochemically active surface area and reduce charge transfer resistance of transition metal borides.

Microstructure and electrochemically active surface area of PtM/C electrocatalysts

2011 ◽  
Vol 47 (8) ◽  
pp. 933-939 ◽  
Author(s):  
V. E. Guterman ◽  
S. V. Belenov ◽  
T. A. Lastovina ◽  
E. P. Fokina ◽  
N. V. Prutsakova ◽  
...  
Keyword(s):  
Surface Area ◽  
Active Surface ◽  
Active Surface Area ◽  
Electrochemically Active ◽  
Electrochemically Active Surface
Sign in / Sign up

Export Citation Format

Share Document