Schlange A, Dos Santos AR, Kunz U, Turek T. Continuous preparation of carbon-nanotube-supported platinum catalysts in a flow reactor directly heated by electric current.
Beilstein J Org Chem 2011;
7:1412-20. [PMID:
22043252 PMCID:
PMC3201055 DOI:
10.3762/bjoc.7.165]
[Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 09/12/2011] [Indexed: 11/23/2022] Open
Abstract
In this contribution we present for the first time a continuous process for the production of highly active Pt catalysts supported by carbon nanotubes by use of an electrically heated tubular reactor. The synthesized catalysts show a high degree of dispersion and narrow distributions of cluster sizes. In comparison to catalysts synthesized by the conventional oil-bath method a significantly higher electrocatalytic activity was reached, which can be attributed to the higher metal loading and smaller and more uniformly distributed Pt particles on the carbon support. Our approach introduces a simple, time-saving and cost-efficient method for fuel cell catalyst preparation in a flow reactor which could be used at a large scale.
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