One-step synthesis of antimony-doped tin oxide/multi-walled carbon nanotube composites: a promising support for platinum catalysts in a direct methanol fuel cell

• Published in: Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology Vol. 16; no. 10; p. 1
• Main Authors: Xu, Pei-Pei, Guo, Dao-Jun, Cui, Shu-Kun, Xiang, Dong-Xue, Peng, Ya-Fang, Qi, Fu-Juan
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.10.2014; Springer; Springer Nature B.V
• Subjects: Applied sciences; Characterization and Evaluation of Materials; Chemical synthesis methods; Chemistry and Materials Science; Cross-disciplinary physics: materials science; rheology; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Exact sciences and technology; Growth from solutions; Inorganic Chemistry; Lasers; Materials Science; Methods of crystal growth; physics of crystal growth; Methods of nanofabrication; Nanoparticles; Nanoscale materials and structures: fabrication and characterization; Nanotechnology; Nanotubes; Optical Devices; Optics; Photonics; Physical Chemistry; Physics; Research Paper; Antimony tin oxide; Anode catalyst; Nanocomposite catalyst; Platinum; Methanol oxidation; Fuel cell; Hydroxides; Carbon nanotubes; Antimony additions; XRD; Precursor; Supported catalyst; Cyclic voltammetry; Tin oxide; Fuel cells; Crystal growth from solutions; Oxidation; Methanol; Carbon; Antimony oxide; Tin additions; Composite materials; Transmission electron microscopy; Hydrothermal synthesis; Nanocomposites; Multiwalled nanotube; Catalyst activity
• ISSN: 1388-0764; 1572-896X
• DOI: 10.1007/s11051-014-2687-5

Antimony-doped tin oxide (ATO) supported on multi-walled carbon nanotubes as new supports for Pt catalyst (Pt–ATO/MWCNT) has been directly synthesized by hydrothermal method using mixed Sb/Sn hydroxide solution as precursor. The structure of Pt–ATO/MWCNT catalyst is characterized by transmission electron microscopy and X-ray diffraction. The electrocatalytic properties of Pt–ATO/MWCNT catalyst for methanol and CO electrooxidation are investigated by cyclic voltammetry and chronoamperometric experiments in acidic medium. The catalytic activity for methanol electrooxidation reaction shows that high CO tolerance and good stability of Pt–ATO/MWCNT catalyst compared with Pt–SnO 2 /MWCNT and commercial Pt/C (E-TEK) are observed. These results imply that Pt–ATO/MWCNT catalyst has promising potential applications in direct methanol fuel cells.