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Nano Research

Article Title

Superior electrocatalytic activity of mesoporous Au film templated from diblock copolymer micelles

Authors

Cuiling Li, World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science(NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Bo Jiang, World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science(NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
Hungru Chen, Department of Chemistry, University of Bath, Bath BA2 7AY, UK
Masataka Imura, World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science(NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Liwen Sang, World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science(NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Victor Malgras, World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science(NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Yoshio Bando, World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science(NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Tansir Ahamad, Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Saad M. Alshehri, Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Satoshi Tominaka, World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science(NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Yusuke Yamauchi, World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science(NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia

Keywords

block copolymers, mesoporous materials, mesoporous metals, gold, electrocatalysts

Abstract

Mesoporous Au films consisting of a network of interconnected Au ligamentsaround ultra-large pores were found to exhibit a promising electrocatalyticactivity towards sluggish reactions. Mesoporous Au films with pore sizes up to25 nm were successfully fabricated using a polymeric micelle approach. Asuperior catalytic activity of the mesoporous Au films towards methanoloxidation was confirmed, which was thoroughly analyzed and compared withthat of other Au materials. An intrinsic investigation on the high catalytic activityrevealed that the superior performance of the as-prepared mesoporous Au filmwas related to its unique atomic structures around the mesopores with wellcrystallizedfacets and several step/kink sites on the Au surfaces. These findingsshowcase a strategic and feasible design for preparing highly active Au-basedcatalysts that could be used as promising candidates in electrocatalyticapplications.

Graphical Abstract

Publisher

Tsinghua University Press

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