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Casting Nanoporous Platinum in Metal–Organic Frameworks
Author(s) -
Gao Xiang,
Pei Xiaokun,
Gardner David W.,
Diercks Christian S.,
Lee Seungkyu,
Rungtaweevoranit Bunyarat,
Prevot Mathieu S.,
Zhu Chenhui,
Fakra Sirine,
Maboudian Roya
Publication year - 2019
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201807553
Subject(s) - nanoporous , materials science , template , nanotechnology , zirconium , catalysis , metal organic framework , porosity , platinum , methanol , metal , casting , chemical engineering , metallurgy , adsorption , composite material , organic chemistry , chemistry , engineering
Nanocasting based on porous templates is a powerful strategy in accessing materials and structures that are difficult to form by bottom‐up syntheses in a controlled fashion. A facile synthetic strategy for casting ordered, nanoporous platinum (NP‐Pt) networks with a high degree of control by using metal–organic frameworks (MOFs) as templates is reported here. The Pt precursor is first infiltrated into zirconium‐based MOFs and subsequently transformed to 3D metallic networks via a chemical reduction process. It is demonstrated that the dimensions and topologies of the cast NP‐Pt networks can be accurately controlled by using different MOFs as templates. The Brunauer–Emmett–Teller surface areas of the NP‐Pt networks are estimated to be >100 m 2 g −1 and they exhibit excellent catalytic activities in the methanol electrooxidation reaction (MEOR). This new methodology presents an attractive route to prepare well‐defined nanoporous materials for diverse applications ranging from energy to sensing and biotechnology.