Format

Send to

Choose Destination
Angew Chem Int Ed Engl. 2015 Jul 27;54(31):9061-5. doi: 10.1002/anie.201502892. Epub 2015 Jun 12.

Ligand-Assisted Co-Assembly Approach toward Mesoporous Hybrid Catalysts of Transition-Metal Oxides and Noble Metals: Photochemical Water Splitting.

Author information

1
Department of Chemistry, University of Connecticut, Storrs, CT 06269 (USA).
2
Department of Chemistry, University of Science & Technology of China, Hefei 230026 (China).
3
Institute of Material Science, University of Connecticut, Storrs, CT 06269 (USA).
4
Department of Chemistry, University of Connecticut, Storrs, CT 06269 (USA). steven.suib@uconn.edu.
5
Institute of Material Science, University of Connecticut, Storrs, CT 06269 (USA). steven.suib@uconn.edu.
6
Department of Chemistry, University of Connecticut, Storrs, CT 06269 (USA). jie.he@uconn.edu.
7
Institute of Material Science, University of Connecticut, Storrs, CT 06269 (USA). jie.he@uconn.edu.

Abstract

A bottom-up synthetic approach was developed for the preparation of mesoporous transition-metal-oxide/noble-metal hybrid catalysts through ligand-assisted co-assembly of amphiphilic block-copolymer micelles and polymer-tethered noble-metal nanoparticles (NPs). The synthetic approach offers a general and straightforward method to precisely tune the sizes and loadings of noble-metal NPs in metal oxides. This system thus provides a solid platform to clearly understand the role of noble-metal NPs in photochemical water splitting. The presence of trace amounts of metal NPs (≈0.1 wt %) can enhance the photocatalytic activity for water splitting up to a factor of four. The findings can conceivably be applied to other semiconductors/noble-metal catalysts, which may stand out as a new methodology to build highly efficient solar energy conversion systems.

KEYWORDS:

mesoporous catalysts; metal nanoparticles; transition-metal oxides; tungsten oxide; water splitting

PMID:
26073465
DOI:
10.1002/anie.201502892

Supplemental Content

Full text links

Icon for Wiley
Loading ...
Support Center