Chemical state and local structure around titanium atoms in NaAlH4 doped with TiCl3 using X-ray absorption spectroscopy

被引：88

作者：

Léon, A

Kircher, O

Rothe, J

Fichtner, M

机构：

[1] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[2] Forschungszentrum Karlsruhe, Inst Nukl Entsorgung, D-76021 Karlsruhe, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 42期

关键词：

D O I：

10.1021/jp048615w

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

X-ray absorption spectroscopy is applied to investigate NaAlH4 doped with 5 mol % TiCl3 by ball milling. XANES analysis indicates that after the ball milling Ti species are reduced from Ti (+3) to Ti (0). Release or absorption of hydrogen does not affect the chemical state obtained after ball milling. EXAFS analysis shows that the Ti atoms are associated only with Ti as next neighbors in the ball-milled state as well as during subsequent desorption and absorption of hydrogen. Furthermore, an increase of the particle size and an ordering of the local structure is seen to evolve with the desorption and the absorption of hydrogen.

引用

页码：16372 / 16376

页数：5

共 50 条

[41] ODS steel raw material local structure analysis using X-ray absorption spectroscopy
Cintins, A.
Anspoks, A.
Purans, J.
Kuzmin, A.
Timoshenko, J.
Vladimirov, P.
Graening, T.
Hoffmann, J.
12TH RUSSIA/CIS/BALTIC/JAPAN SYMPOSIUM ON FERROELECTRICITY AND 9TH INTERNATIONAL CONFERENCE ON FUNCTIONAL MATERIALS AND NANOTECHNOLOGIES (RCBJSF-2014-FM&NT), 2015, 77
[42] Study of local structure around zirconium ions in grain boundaries of polycrystalline α-alumina by X-ray absorption spectroscopy and chemical analysis of thin foils
Loudjani, MK
Cortés, R
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1999, 19 (15) : 2659 - 2666
[43] NITROGEN CHEMICAL-STRUCTURE IN PETROLEUM ASPHALTENES USING X-RAY ABSORPTION-SPECTROSCOPY
KIRTLEY, SM
MULLINS, OC
VANELP, J
GEORGE, S
CHEN, J
CRAMER, SP
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1992, 204 : 10 - FUEL
[44] Local crystal structure in the vicinity of Cr in doped AlN thin films studied by X-ray absorption spectroscopy
Panda, Padmalochan
Ramaseshan, R.
Sahoo, Madhusmita
Krishna, Nanda Gopala
Yadav, A. K.
Jha, S. N.
Bhattacharyya, D.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2018, 20 (18) : 13084 - 13091
[45] Local structure studies of CoFeMnX (X = Si and Ge) Heusler alloys using X-ray absorption spectroscopy
Bainsla, Lakhan
Yadav, A. K.
Venkateswara, Y.
Jha, S. N.
Bhattacharyya, D.
Suresh, K. G.
JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 651 : 509 - 513
[46] Extended x-ray absorption fine structure spectroscopy and x-ray absorption near edge spectroscopy study of aliovalent doped ceria to correlate local structural changes with oxygen vacancies clustering
Shirbhate, S. C.
Yadav, A. K.
Acharya, S. A.
APPLIED PHYSICS LETTERS, 2016, 108 (14)
[47] Structure and composition of Cu-doped CdSe nanocrystals using soft X-ray absorption spectroscopy
Meulenberg, RW
van Buuren, T
Hanif, KM
Willey, TM
Strouse, GF
Terminello, LJ
NANO LETTERS, 2004, 4 (11) : 2277 - 2285
[48] Investigation of local structure in BaTiO3-BaZrO3 system by synchrotron X-ray absorption spectroscopy
Bootchanont, Atipong
Jutimoosik, Jaru
Chandarak, Sujittra
Unruan, Muangjai
Rujirawat, Saroj
Yimnirun, Rattikorn
Guo, Ruyan
Bhalla, Amar
CERAMICS INTERNATIONAL, 2013, 39 : S579 - S582
[49] Local and electronic structure of Sr1-xGdxTiO3 probed by X-ray absorption spectroscopy
Mesquita, Alexandre
Magnavita Oliveira, Elio Thizay
de Carvalho, Hugo Bonette
JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 861
[50] The local structure for the binuclear (type 3) copper sites of hemocyanins, as investigated by X-ray absorption spectroscopy
Borghi, E
FEBS JOURNAL, 2005, 272 : 70 - 70

← 1 2 3 4 5 →