Molecular Catalysts Confined on and Within Molecular Layers Formed on a Si(111) Surface with Direct Si-C Bonds

Two examples of confined molecular catalysts are presented. PtCl42− complexes are attached to a thiol‐terminated monolayer by ligand exchange of Cl− with a thiolate group and incorporated in a multilayer of viologen moieties by ion exchange. All Cl− ligands are replaced by OH− or H2O before HER take...

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Published inAdvanced materials (Weinheim) Vol. 24; no. 2; pp. 268 - 272
Main Authors Masuda, Takuya, Fukumitsu, Hitoshi, Takakusagi, Satoru, Chun, Wang-Jae, Kondo, Toshihiro, Asakura, Kiyotaka, Uosaki, Kohei
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 10.01.2012
WILEY‐VCH Verlag
Subjects
Carbon - chemistry
Catalysis
Coordination Complexes - chemistry
Electrodes
hydrogen evolution reaction
molecular catalysts
Photoelectron Spectroscopy
Platinum - chemistry
platinum complexes
semiconductor electrodes
Semiconductors
Silicon - chemistry
Sulfhydryl Compounds - chemistry
Surface Properties
X-ray absorption fine structure
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Summary:Two examples of confined molecular catalysts are presented. PtCl42− complexes are attached to a thiol‐terminated monolayer by ligand exchange of Cl− with a thiolate group and incorporated in a multilayer of viologen moieties by ion exchange. All Cl− ligands are replaced by OH− or H2O before HER takes place. Ex situ and in situ XAFS measurements confirm that the Pt complexes accelerate HER without being converted into Pt particles.
Bibliography:ark:/67375/WNG-11TDPPBG-H
ArticleID:ADMA201102491
istex:8DF28F777F6764501D0B6C6935E13F8DE40F4253
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201102491