One-Step Synthesized Tungsten Oxide/Carbon Nanotube Composites as Pt Catalyst Supports for Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cells

2011 ◽  
Vol 1 (3) ◽  
pp. 280-286 ◽  
Author(s):  
Doralice Meza ◽  
Drew C. Higgins ◽  
Jason Wu ◽  
Zhongwei Chen
Keyword(s):  
Carbon Nanotube ◽  
Proton Exchange Membrane ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Pt Catalyst ◽  
Catalyst Supports ◽  
Nanotube Composites ◽  
One Step ◽  
Carbon Nanotube Composites ◽  
Exchange Membrane

scholarly journals Carbon nanotube architectures as catalyst supports for proton exchange membrane fuel cells

2010 ◽  
Vol 3 (9) ◽  
pp. 1286 ◽  
Author(s):  
Weimin Zhang ◽  
Peter Sherrell ◽  
Andrew I. Minett ◽  
Joselito M. Razal ◽  
Jun Chen
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Catalyst Supports ◽  
Exchange Membrane

Synthesis of platinum/multi-wall carbon nanotube catalysts

2004 ◽  
Vol 19 (8) ◽  
pp. 2279-2284 ◽  
Author(s):  
Pan Mu ◽  
Tang Haolin ◽  
Mu Shichun ◽  
Yuan Runzhang
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Proton Exchange Membrane ◽  
Particle Morphology ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Transmission Electron ◽  
Low Pt Loading ◽  
Exchange Membrane ◽  
Multi Wall Carbon Nanotube

The purpose of this research is to investigate the feasibility of the synthesis of platinum/multi-wall carbon nanotube (Pt/MWNT) catalysts and such catalysts' application in fuel cells. The as-received MWNTs were purified and decorated by pretreatment. Infrared-spectrum indicates the carboxylic (-COOH) and carbonyl (-C=O) groups were introduced on the surface of the MWNTs after pretreatment. These functional groups will act as anchor sites for the Pt deposition. Then the Pt particles in nano scale were deposited on the surface of MWNTs by reduction of a solution of hexachloroplatinic acid. Transmission electron microscopy examination reveals that Pt particles are attached to the surface of MWNTs. If as-received MWNTs are not pretreated in the proper way, the Pt particle aggregates are mostly found on the open end of MWNTs. Occasionally Pt penetrated inside the tube of MWNTs. The relationship between the Pt particle morphology and the conditions of pretreatment and reduction reaction is discussed. After heat treatment, Pt particles recrystallized to form the Pt/MWNT catalysts. The Pt/MWNT catalysts were applied to a single cell and the test result shows a promising future of these catalysts with low Pt loading when applied in proton exchange membrane fuel cells (PEMFCs).

scholarly journals Polyaniline Based Pt-Electrocatalyst for a Proton Exchanged Membrane Fuel Cell

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 617 ◽  
Author(s):  
Wen-Yao Huang ◽  
Mei-Ying Chang ◽  
Yen-Zen Wang ◽  
Yu-Chang Huang ◽  
Ko-Shan Ho ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Pt Catalyst ◽  
Emeraldine Base ◽  
Cyclic Voltammograms ◽  
Typical Type ◽  
Exchange Membrane

Calcination reduction reaction is used to prepare Pt/EB (emeraldine base)-XC72 (Vulcan carbon black) composites as the cathode material of a proton exchange membrane fuel cell (PEMFC). The EB-XC72 core-shell composite obtained from directly polymerizing aniline on XC72 particles is able to chelate and capture the Pt-ions before calcination. X-ray diffraction spectra demonstrate Pt particles are successfully obtained on the EB-XC72 when the calcined temperature is higher than 600 °C. Micrographs of TEM and SEM illustrate the affluent, Pt nanoparticles are uniformly distributed on EB-XC72 at 800 °C (Pt/EB-XC72/800). More Pt is deposited on Pt/EB-XC72 composite as temperatures are higher than 600 °C. The Pt/EB-XC72/800 catalyst demonstrates typical type of a cyclic voltammograms (C-V) curve of a Pt-catalyst with clear Pt–H oxidation and Pt–O reduction peaks. The highest number of transferred electrons during ORR approaches 3.88 for Pt/EB-XC72/800. The maximum power density of the single cell based on Pt/EB-XC72/800 reaches 550 mW cm−2.

Graphene-Carbon Nanotube Hybrids as Robust Catalyst Supports in Proton Exchange Membrane Fuel Cells

2016 ◽  
Vol 163 (3) ◽  
pp. F255-F263 ◽  
Author(s):  
Kien-Cuong Pham ◽  
David S. McPhail ◽  
Cecilia Mattevi ◽  
Andrew T. S. Wee ◽  
Daniel H. C. Chua
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Catalyst Supports ◽  
Exchange Membrane

scholarly journals Synthesis of polyaniline-wrapped carbon nanotube-supported PtCo catalysts for proton exchange membrane fuel cells: activity and stability tests

RSC Advances ◽  
2017 ◽  
Vol 7 (34) ◽  
pp. 20801-20810 ◽  
Author(s):  
Duanghathai Kaewsai ◽  
Pornpote Piumsomboon ◽  
Kejvalee Pruksathorn ◽  
Mali Hunsom
Keyword(s):  
Fuel Cells ◽  
Carbon Nanotube ◽  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Proton Exchange Membrane ◽  
Pem Fuel Cell ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Exchange Membrane

A series of the polyaniline (PAN)-wrapped carbon nanotube (CNT)-supported PtCo (PtCo/xPAN–CNT) catalysts was prepared for the oxygen reduction reaction (ORR) in a proton exchange membrane (PEM) fuel cell.

Sign in / Sign up

Export Citation Format

Share Document