Results 81 to 90 of about 41,652 (172)

Mössbauer spectroscopy of sulphidic minerals [PDF]

Acta Montanistica Slovaca, 2000
Principles of the Mössbauer effect and the possibilities of its utilization for the study of sulphidic minerals are discussed. There is possibility to apply the Mössbauer spectroscopy in mineralogy for the identification of sulphides („fingerprint ...
Lipka Jozef, BalហPeter
doaj  

Entropy‐Driven Innovations: Entropy Stabilized Oxides for High‐Performance Next‐Generation Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This article explores high‐entropy‐stabilized oxides (HEOs) as novel functional materials for addressing critical issues in lithium–sulfur (Li–S) batteries, including lithium polysulfide (LPS) shuttling, inadequate conductivity, and slow redox kinetics.
Hassan Raza, Jialiang Wei, Zhicai Wang, Zhaoyang Lv, Junye Cheng, Jia Xu, Liang An, Yuliang Liu, Sergey Ryazantsev, Shukui Li, Guangping Zheng   +10 more
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

Breaking the ORR Trade‐Off via Mg‐Steered Fe‐N4 Pyridinic Conversion

Small, EarlyView.
A Mg‐assisted sacrificial templating strategy is developed to selectively regulate the coordination environment of Fe–N4 sites. This approach induces an active site conversion from S1 to S2, enabling enhancement of oxygen reduction activity and durability. ABSTRACT Single‐atom Fe sites coordinated by pyrrolic nitrogen (Fe‐Npyrr‐C) are highly active for
Si‐Qi Sun, Ya‐Peng Cheng, Hai‐Ning Zhang, Jia‐Min Lyu, Xiao‐Yun Li, Ke Lyu, Ming‐Hui Sun, Shen Yu, Wen‐Mao Tu, Andreu Cabot, Li‐Hua Chen   +10 more
wiley   +1 more source

Estudio Minerológico de Suelos Agrícolas por Espectroscopia Mössbauer

Revista de Investigación de Física, 1999
Los compuestos de hierro (Fe) son muy comunes en la naturaleza. En el caso de suelos, se presenta en forma de sesquióxidos de hierro, tales como óxidos, hidróxidos y oxihidróxidos, así como cationes de sustitución en arcillas.
María L. Cerón L., Julio Fabián S., Jorge A. Bravo Cabrejos   +2 more
doaj   +1 more source

2D Iron Oxide at the Graphene/SiC(0001) Interface

Small Methods, EarlyView.
2D iron oxide was successfully formed via intercalation of Fe and O into the graphene/SiC(0001) interface. Atomic‐resolution electron microscopy revealed that the 2D iron oxide is encapsulated by graphene and sharply interfaced with SiC. This material is suggested to exhibit antiferromagnetic behavior at low temperatures.
Ryotaro Sakakibara, Tomo‐o Terasawa, Taizo Kawauchi, Katsuyuki Fukutani, Takahiro Ito, Wataru Norimatsu   +5 more
wiley   +1 more source

A Second-Generation Janus Scorpionate Ligand: Controlling Coordination Modes in Iron(II) Complexes by Steric Modulation [PDF]

, 2008
The second-generation Janus scorpionate ligand [HB(mtdaMe)3−] containing methyl-mercaptothiadiazolyl (mtdaMe) heterocyclic rings and (N,N,N-) and (S,S,S-) binding pockets has been prepared. The effect of methyl substitution versus the unsubstituted first-
Gardinier, James R., Grandjean, Fernande, Gwengo, Chengeto, Lindeman, Sergey V., Long, Gary J., Silva, Rosalice M., Smith, Mark D.   +6 more
core   +1 more source

FPGA‐accelerated streaming data reduction achieving an average compression ratio over 8000 in a 17.4 kHz, 840 kpixel CITIUS detector for quasi‐elastic gamma‐ray scattering

Journal of Synchrotron Radiation, EarlyView.
A high‐throughput field‐programmable gate array (FPGA)‐accelerated data‐reduction and ‐analysis pipeline combined with high‐performance computing enables the continuous handling of a 216 Gbps data stream from quasi‐elastic gamma‐ray scattering experiments at SPring‐8.We present a data‐acquisition and ‐analysis framework for quasi‐elastic gamma‐ray ...
Haruki Nishino, Masashi Kobayashi, Toshiyuki Nishiyama Hiraki, Yoshiaki Honjo, Kyosuke Ozaki, Mitsuhiro Yamaga, Nobumoto Nagasawa, Yoshitaka Yoda, Yasumasa Joti, Makina Saito, Takaki Hatsui   +10 more
wiley   +1 more source

Mössbauer forward scattering spectra of ferromagnets in radio-frequency magnetic field [PDF]

Ядерна фізика та енергетика, 2012
The transmission of Mössbauer radiation through a thick ferromagnetic crystal, subjected to the radio-frequency (rf) magnetic field, is studied. A quantum-mechanical dynamical scattering theory is developed, taking into account both the periodical ...
A. Ya. Dzyublik, E. K. Sadykov, G. I. Petrov, V. V. Arinin, F. H. Vagizov, V. Yu. Spivak   +5 more
doaj  

Crystal structure and magnetic properties of Li1-xNaxFePO4 based on Mössbauer spectroscopy

AIP Advances, 2017
The Na-doped Li1-xNaxFePO4 (x = 0.0, 0.01, 0.05, 0.1, 1) samples were synthesized by solid-state reaction method and investigated with X-ray diffractometer (XRD), vibrating sample magnetometer (VSM) and Mössbauer spectrometer.
Byung Ug Ko, Hyunkyung Choi, Taejoon Kouh, Sam Jin Kim, Chul Sung Kim   +4 more
doaj   +1 more source