Abstract
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).
Similar content being viewed by others
References
L.X. You and H.T. Liu: A parametric study of the cathode catalyst layer of PEM fuel cells using a pseudo-homogeneous model. Int. J. Hydrogen Energy 26, 991 (2001).
H.M. Yu, Z.J. Hou, B.L. Yi, et al.: Composite anode for CO tolerance proton exchange membrane fuel cells. J. Power Sources 105, 52 (2002).
Z.G. Qi and A. Kaufman: Low Pt loading high performance cathodes for PEM fuel cells. J. Power Sources 113, 37 (2003).
K.H. Choi, H.S. Kim, and T.H. Lee: Electrode fabrication for proton exchange membrane fuel cells by pulse electrodeposition. J. Power Sources 75, 230 (1998).
M.S. Wilson and S. Gottesfeld: High performance catalyzed membranes of ultra-low platinum loadings for polymer electrolyte fuel cells. J. Appl. Electrochem. 22, 1 (1992).
J. Breen, R. Burch, and H. Coleman: Metal-catalysed steam reforming of ethanol in the production of hydrogen for fuel-cell applications. Appl. Catal. Environ. 39, 65 (2002).
S.D. Thompson, L.R. Jordan, and M. Forsyth: Platinum electro-deposition for polymer electrolyte membrane fuel cells. Electro-chim. Acta 46, 1657 (2001).
Y. Chun, C. Kim, D. Peck, et al.: Performance of a polymer electrolyte membrane fuel cell with thin film catalyst electrodes. J. Power Sources 71, 174 (1998).
R. O’Hayre, S. Lee, S. Cha, et al.: A sharp peak in the performance of sputtered platinum fuel cells at ultra-low platinum loading. J. of Power Sources 109, 483 (2002).
Z.G. Qi, M. Lefebvre, and P. Pickp: Electron and proton transport in gas diffusion electrodes containing electronically conductive proton-exchange polymers. J. Electroanal. Chem. 459, 9 (1998).
G.R. Chen and C.L. Xu, et al.: Deposition of the platinum crystals on the carbon nanotubes. Chinese Science Bulletin. 45, 134 (2000).
H. Dai, E.W. Wony, and C.M. Leiber: Probing electrical transport in nanomaterials: Conductivity of individual carbon nanotubes. Science 272, 523 (1996).
H. Dai, J.H. Hafner, A.G. Rinzeler, D.T. Collbert, and R.E. Smallery: Nanotubes as nanoprobes in scanning probe microscopy. Nature 384, 147 (1996).
R.M. Baum: Nurturing nanotubes. Chem. Eng. News 75, 39 (1997).
Y. Ye, C.C. Ahn, C.K. Witham, B. Fultz, J. Liu, A. Rinzler, D. Colbert, K. Smith, and R. Smalley: Hydrogen adsorption and cohesive energy of single-walled carbon nanotubes. Appl. Phys. Lett. 277, 933 (1999).
G.E. Gadd, M. Blackford, S. Moricca, N. Webb, P.J. Evans, A.M. Smith, G. Jacobson, S. Leung, A. Day, and Q. Hua: The world’s smallest gas cylinders. Science 277, 933 (1997).
B. Rajesh and K. Ravindranathan, et al.: Preparation of a Pt-Ru bimetallic system supported on carbon nanotubes. J. Mater. Chem. 10, 1757 (2000).
V. Lordi, N. Yao, and J. Wei: Method for supporting platinum on single-walled carbon nanotubes for a selective hydrogenation catalyst. Chem. Mater. 13, 733 (2001).
B.C. Satishkumart, E.M. Vogl, A. Govindaraj, and C.N.R. Rao: The decoration of carbon nanotubes by metal nanoparticles. J. Phys. D Appl. Phys. 176, 3173 (1996).
S. Gamburzev and A. Appleby: Recent progress in performance improvement of the proton exchange membrane fuel cell (PEMFC). J. Power Sources 107, 5 (2002).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mu, P., Haolin, T., Shichun, M. et al. Synthesis of platinum/multi-wall carbon nanotube catalysts. Journal of Materials Research 19, 2279–2284 (2004). https://doi.org/10.1557/JMR.2004.0301
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.2004.0301