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Facile Synthesis of a Crystalline, High‐Surface‐Area SnO 2 Aerogel
Author(s) -
Baumann T. F.,
Kucheyev S. O.,
Gash A. E.,
Satcher J. H.
Publication year - 2005
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.200500074
Subject(s) - materials science , aerogel , rutile , tetragonal crystal system , nanoparticle , conduction band , absorption (acoustics) , electronic structure , enhanced data rates for gsm evolution , absorption edge , nanotechnology , chemical engineering , optoelectronics , band gap , condensed matter physics , composite material , crystallography , crystal structure , telecommunications , chemistry , physics , quantum mechanics , computer science , engineering , electron
Preparation of a low‐density , high‐ surface‐area SnO 2 aerogel (see Figure inset), comprised of interconnected, randomly oriented crystalline (rutile) SnO 2 nanoparticles ∼3–5 nm in size is reported. X‐ray absorption near‐edge structure spectroscopy at the Sn M 4,5 edge reveals that the electronic structure of the SnO 2 aerogel is similar to that of tetragonal SnO, rather than SnO 2 or β‐Sn, with additional Sn‐related electronic states close to the conduction band minimum.