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Micelle-Assisted Strategy for the Direct Synthesis of Large-Sized Mesoporous Platinum Catalysts by Vapor Infiltration of a Reducing Agent

1
School of Transportation Science and Engineering and Advanced Vehicle Research Center (AVRC), Beihang University, Beijing 100191, China
2
Key Laboratory of Sensor Analysis of Tumor Marker (Ministry of Education), Shandong Key Laboratory of Biochemical Analysis, and Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
3
School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia
4
Department of Plant and Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Korea
5
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
6
Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
7
Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
8
Bejing Electric Vehicle Co. Ltd., Beijing Economic & Technological Development Area, No. 5 Donghuan Zhonglu, Beijing 100176, China
9
Department of Mechanical Engineering and Engineering Science, The University of North Carolina at Charlotte, 9201 University City Blvd, Charlotte, NC 28223, USA
*
Authors to whom correspondence should be addressed.
Nanomaterials 2018, 8(10), 841; https://doi.org/10.3390/nano8100841
Received: 28 August 2018 / Revised: 8 October 2018 / Accepted: 9 October 2018 / Published: 16 October 2018
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Abstract

Stable polymeric micelles have been demonstrated to serve as suitable templates for creating mesoporous metals. Herein, we report the utilization of a core-shell-corona type triblock copolymer of poly(styrene-b-2-vinylpyridine-b-ethylene oxide) and H2PtCl6·H2O to synthesize large-sized mesoporous Pt particles. After formation of micelles with metal ions, the reduction process has been carried out by vapor infiltration of a reducing agent, 4-(Dimethylamino)benzaldehyde. Following the removal of the pore-directing agent under the optimized temperature, mesoporous Pt particles with an average pore size of 15 nm and surface area of 12.6 m2·g−1 are achieved. More importantly, the resulting mesoporous Pt particles exhibit superior electrocatalytic activity compared to commercially available Pt black. View Full-Text
Keywords: mesoporous materials; catalysts; triblock copolymers; platinum; methanol electro-oxidation mesoporous materials; catalysts; triblock copolymers; platinum; methanol electro-oxidation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Li, Y.; Liu, Y.; Yamauchi, Y.; Kaneti, Y.V.; Alsheri, S.M.; Ahamad, T.; Alhokbany, N.; Kim, J.; Ariga, K.; Wu, N.; Xu, J. Micelle-Assisted Strategy for the Direct Synthesis of Large-Sized Mesoporous Platinum Catalysts by Vapor Infiltration of a Reducing Agent. Nanomaterials 2018, 8, 841.

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