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Bottom‐Up Preparation of Porous Metal‐Oxide Ultrathin Sheets with Adjustable Composition/Phases and Their Applications
Author(s) -
Zhu Jixin,
Yin Zongyou,
Li Hai,
Tan Huiteng,
Chow Chee Lap,
Zhang Hua,
Hng Huey Hoon,
Ma Jan,
Yan Qingyu
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201101729
Subject(s) - oxide , graphene , materials science , porosity , nanotechnology , metal , supercapacitor , porous medium , chemical engineering , electrode , composite material , capacitance , metallurgy , chemistry , engineering
A facile bottom‐up synthesis approach is developed to prepare porous metal‐oxide ultrathin sheets, e.g., SnO 2 , Fe 2 O 3 , and SnO 2 ‐Fe 2 O 3 , with thicknesses of ∼5 nm. Graphene sheets are used as the sacrificing template. Such a process can be extended to the synthesis of multiphased porous metal‐oxide thin sheets. These porous thin sheets show interesting applications as gas sensors, effective platforms for matrix‐assisted laser desorption/ionization–time‐of‐flight mass spectrometry, and supercapacitors.