Results 71 to 80 of about 29,041 (189)

57Fe Mössbauer spectroscopy investigation of La0.7Ca0.3Mn0.5Fe0.5O3

Results in Physics, 2016
A La0.7Ca0.3Mn0.5Fe0.5O3 (LCMFO) ceramic sample was produced using conventional solid-state reactions. According to the X-ray diffraction data, the obtained sample has an orthorhombic space group Pnma (a = 5.482(2) Å, b = 7.739(3) Å, c = 5.446(3) Å ...
V.S. Zakhvalinskii, E.A. Piliuk, S.V. Taran, A. Sklyarova, V.V. Matveev, J. Lindén, I. Zakharchuk   +6 more
doaj   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source

QUANTITATIVE MÖSSBAUER SPECTROSCOPY

, 1979
L'analyse quantitative des mesures de spectroscopie Mössbauer, telles que l'obtention du rapport Fe3+/Fe2+, est rendue difficile par la différence des valeurs du déplacement quadratique moyen du noyau Mössbauer placé en des sites chimiquement distincts.
R.L. Collins
core   +1 more source

Recent Advances in Prussian Blue Analogs as Capacitive Deionization Electrode Materials: Fundamentals, Structure–Performance Relationships, and Design Strategies

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review systematically examines the fundamental ion‐storage mechanisms, the structural chemistry, and redox behavior of Prussian blue analogs as Faradaic electrodes in capacitive deionization, their intrinsic limitations and engineering optimization strategies, and the critical materials‐to‐device considerations required to advance PBA‐based CDI ...
Adekunle Adedapo Obisanya, Long Pan, Yao Dong, Faming Gao, Jianren Wang   +4 more
wiley   +1 more source

Mössbauer study of a tetrakis (pentafluorophenyl) porphyrin iron (III) chloride in comparison with the fluorine unsubstituted analogue

Nukleonika, 2015
Mössbauer investigations, in association with density functional theory (DFT) calculations, have been conducted for the molecular and electronic structures of iron (III) [tetrakis (pentafluorophenyl)] porphyrin chloride [(F20TPP)Fe:Cl], as a Fe(III ...
Kaczmarzyk Tomasz, Dziedzic-Kocurek Katarzyna, Rutkowska Iwona, Dziliński Kazimierz   +3 more
doaj   +1 more source

Mössbauer and Raman spectroscopic characterization of iron and carbon in iron-loaded Japanese cypress charcoal

Journal of Wood Science, 2020
Japanese cypress (Chamaecyparis obtusa) wood powder impregnated with Fe3+ ions was carbonized using one-step and two-step procedures, and the iron-loaded charcoal was examined using Mössbauer and Raman spectroscopy to elucidate the physicochemical states
Takayuki Yamagishi, Shigeru Yamauchi, Kyoko Suzuki, Tsutomu Suzuki, Yasuji Kurimoto, Tsutomu Takayama, Yoichi Sakai   +6 more
doaj   +1 more source

Electronic Structures and Orbital Interactions of Iron Porphyrin Intermediates Throughout Electrochemical CO2 Reduction Reaction: A Computational Study

Journal of the Chinese Chemical Society, EarlyView.
Electronic structure and orbital interactions of intermediates throughout electrochemically catalyzed CO2‐to‐CO reduction reaction by iron porphyrin are carefully discussed by DFT calculations in this work. The results demonstrate distinct functions of Fe 3d orbitals and porphyrin π* orbitals for electron transfer process to CO2, and the electronic ...
Ching‐Chin Chen
wiley   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

Small, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva, Federico Juarez‐Dominguez, Víctor Oestreicher, Martín Mizrahi, Diego Hunt, Bruno J. C. Vieira, Joao C. Waerenborgh, Valeria Ferrari, Gonzalo Abellán   +8 more
wiley   +1 more source

Le role pivot de la spectroscopie Mössbauer dans la caractérisation du bleu de Prusse et des complexes associés cyanures du fer

, 2012
For 50 years, 57Fe Mössbauer spectroscopy has played a pivotal role in the characterization of Prussian blue complexes and many related iron cyanide complexes, a pivotal role that is extensively illustrated in this paper.
Long, Gary J, Samain, Louise, Grandjean, Fernande   +2 more
core  

On anomalous Mössbauer spectra in spinel ferrites

, 1984
Mössbauer measurements carried out in an external magnetic field rule out the possibility of the domain wall oscillations to be the cause of the anomalous Mössbauer lineshapes observed in spinel ferrites and similar ...
Vijayaraghavan, R., Muraleedharan, K., Srivastava, J. K.   +2 more
core   +1 more source