Layer-by-Layer Motif Architectures: Programmed Electrochemical Syntheses of Multilayer Mesoporous Metallic Films with Uniformly Sized Pores

Authors

Bo Jiang, Waseda University, National Institute for Materials Science, JapanFollow
Cuiling Li, National Institute for Materials Science, JapanFollow
Huayu Qian, National Institute for Materials Science, Japan
Md. Shahriar Al Hossain, National Institute for Materials Science, Japan, University of WollongongFollow
Victor Malgras, National Institute for Materials Science, JapanFollow
Yusuke Yamauchi, National Institute for Materials Science, Japan, University of WollongongFollow

RIS ID

114855

Publication Details

Jiang, B., Li, C., Qian, H., Hossain, M. A., Malgras, V. & Yamauchi, Y. (2017). Layer-by-Layer Motif Architectures: Programmed Electrochemical Syntheses of Multilayer Mesoporous Metallic Films with Uniformly Sized Pores. Angewandte Chemie - International Edition, 56 (27), 7836-7841.

Abstract

Although multilayer films have been extensively reported, most compositions have been limited to non-catalytically active materials (e.g. polymers, proteins, lipids, or nucleic acids). Herein, we report the preparation of binder-free multilayer metallic mesoporous films with sufficient accessibility for high electrocatalytic activity by using a programmed electrochemical strategy. By precisely tuning the deposition potential and duration, multilayer mesoporous architectures consisting of alternating mesoporous Pd layers and mesoporous PdPt layers with controlled layer thicknesses can be synthesized within a single electrolyte, containing polymeric micelles as soft templates. This novel architecture, combining the advantages of bimetallic alloys, multilayer architectures, and mesoporous structures, exhibits high electrocatalytic activity for both the methanol oxidation reaction (MOR) and the ethanol oxidation reaction (EOR).

Grant Number

ARC/FT150100479