Journal ArticleDOI
Raman spectra of niobium oxides
TLDR
In this article, the Raman spectra of various types of niobium oxides have been studied along with their i.r. spectra and the spectra interpreted in the light of the structures of the oxides.About:
This article is published in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy.The article was published on 1976-01-01. It has received 162 citations till now. The article focuses on the topics: Raman spectroscopy.read more
Citations
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Tunable near-infrared and visible-light transmittance in nanocrystal-in-glass composites
TL;DR: This work introduces tin-doped indium oxide nanocrystals into niobium oxide glass (NbOx), and realizes a new amorphous structure as a consequence of linking it to the nanocry crystals, which demonstrates a previously unrealized optical switching behaviour that will enable the dynamic control of solar radiation transmittance through windows.
Journal ArticleDOI
Niobium oxides and niobates physical properties: Review and prospects
TL;DR: In this paper, a short review on different types of niobates, namely columbite and rare earth, and the relation of the properties of these materials with niobium oxides is presented.
Journal ArticleDOI
Acid sites characterization of niobium phosphate catalysts and their activity in fructose dehydration to 5-hydroxymethyl-2-furaldehyde
Tiziana Armaroli,Guido Busca,Carlo Carlini,Mario Giuttari,Anna Maria Raspolli Galletti,Glauco Sbrana +5 more
TL;DR: In this paper, the nature of different acid sites on the surface of various niobium-based catalysts has been spectroscopically investigated by means of FT-IR and UV-VIS techniques.
Journal ArticleDOI
Linear topology in amorphous metal oxide electrochromic networks obtained via low-temperature solution processing
Anna Llordes,Anna Llordes,Yang Wang,Alejandro Fernandez-Martinez,Alejandro Fernandez-Martinez,Penghao Xiao,Thomas Lee,Thomas Lee,Agnieszka Poulain,Omid Zandi,Camila A. Saez Cabezas,Graeme Henkelman,Delia J. Milliron,Delia J. Milliron +13 more
TL;DR: A room-temperature solution process to fabricate electrochromic films of niobium oxide glass and 'nanocrystal-in-glass' composites via acid-catalysed condensation of polyniobate clusters leads to a unique one-dimensional chain-like NbOx structure, which significantly enhances the electro chromic performance, compared to a typical three-dimensional Nb Ox network obtained from conventional high-tem temperature thermal processing.
Journal ArticleDOI
Structural Studies of Bulk to Nanosize Niobium Oxides with Correlation to Their Acidity
Hannah Theresa Kreissl,Molly Meng Jung Li,Yung-Kang Peng,Keizo Nakagawa,Thomas J. N. Hooper,John V. Hanna,Ashley M. Shepherd,Tai-Sing Wu,Yun-Liang Soo,S. C. Edman Tsang +9 more
TL;DR: Hydrated niobium oxides are used as strong solid acids with a wide variety of catalytic applications, yet the correlations between structure and acidity remain unclear.
References
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Journal ArticleDOI
The Raman effect in crystals
TL;DR: A review of progress in the theoretical and experimental study of the Raman effect in crystals during the past ten years is given in this article, where the theory of those properties of long-wavelength lattice vibrations in both cubic and uniaxial crystals which can be studied by Raman scattering.
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The crystal structure of the high temperature form of niobium pentoxide
B.M. Gatehouse,A.D. Wadsley +1 more
Journal ArticleDOI
Electronic and vibrational spectra of ordered perovskites
G. Blasse,A.F. Corsmit +1 more
TL;DR: In this paper, the electronic absorption and emission spectra of ordered perovskites A 2 BWO 6 were described and the charge transfer absorption of the tungstate group depends on the choice of A and B. The WO 6 group in Ba 2 MgWO 6 showed two different emissions, a blue and a yellow one.
Journal ArticleDOI
Vibrational spectra of yttrium niobate and tantalate
TL;DR: In this paper, the internal vibrational modes of the NbO3−4 and TaO3+4 tetrahedra were investigated. But the results were limited to the infrared and Raman spectra.
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