journal article·2019-10-09Open access

Tailored Design of Mesoporous PdCu Nanospheres with Different Compositions Using Polymeric Micelles

Muhammad Iqbal, Yena Kim, Cuiling Li, Bo Jiang, Toshiaki Takei, Jianjian Lin, Brian Yuliarto, Yoshio Bando, Joel Henzie, Yusuke Yamauchi

ACS Applied Materials & Interfaces· Volume 11· Issue 40

Abstract

Mesoporous metals have attracted a lot of interest due to their wide range of applications, particularly in catalysis. We previously reported the preparation of mesoporous Pd using block copolymer micelle templates (Chem. Sci. 2019, 10, 4054). Here we extend this synthetic concept to generate alloyed spherical palladium–copper (PdCu) nanoparticles with an open porous network and uniform morphology. This one-pot synthesis is initiated by water-induced micellization of the block copolymer, followed by the chemical reduction, nucleation, and growth of mesoporous spherical alloy nanoparticles. Porosity enables accessibility to numerous active sites throughout the interior and exterior surfaces of the nanoparticles. Mesoporous nanoparticles composed of Pd and Cu alloy exhibit enhanced electrocatalytic activity and stability in the ethanol oxidation reaction (EOR) and the oxygen reduction reaction (ORR).
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Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Nanomaterials for catalytic reactions · Block Copolymer Self-Assembly

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

Department of Engineering Physics and Research Center for Nanoscience and Nanotechnology, Institute of Technology Bandung, Ganesha 10, Bandung 40132, Indonesia

Institute of Molecular Plus, Tianjin University. No. 11 Building, No. 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China

Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology (QUST), Qingdao, 266042, P. R. China

School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane Queensland 4072, Australia

Australian Institute of Innovative Materials, University of Wollongong, Squires Way, North Wollongong, New South Wales 2500, Australia

Department of Plant & Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Korea

Funding

Australian Research Council · Institut Teknologi Bandung, Tianjin University

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