Results 111 to 120 of about 17,786 (291)

CRYSTALLITE MORPHOLOGY IN GOLD CATALYSTS OBTAINED BY RIETVELD REFINEMENT

, 2020
The microstructure of gold catalysts supported on rutile was obtained by Rietveld refinement. Three-dimensional images of the crystallites were generated in real space, as well as 3-D images of the microstrain distribution in reciprocal space.
Xim Bokhimi, Antonio Morales, Rodolfo Zanella   +2 more
core  

Impurity Tolerance in LiFePO4 Cathodes: Contrasting Structural, Electronic, and Electrochemical Roles of Residual Ni and Cr

Advanced Science, EarlyView.
Impurity tolerance in LiFePO4 cathodes varies strongly with impurity type and content. Low Ni levels are accommodated within the lattice with minimal structural disruption, whereas higher Ni contents introduce antisite disorder. In contrast, Cr impurities segregate from the LiFePO4 framework, blocking lithium‐ion pathways and leading to inferior ...
Minjin Kim, Hyerin Jeon, Jinhee Lee, Jinsub Choi   +3 more
wiley   +1 more source

A new possible atomic arrangement for the carbon atom in the B-sites of AB-type carbonate apatite

Materials Research, 2011
The crystal structure of a synthetic AB-type carbonate apatite sample was analyzed by Rietveld refinement including a model with carbon atom not fixed in the B-site of the apatite structure.
Jorge Correa de Araújo, Elizabeth Lima Moreira, Valeria Conde Alves Moraes, Ana Paula Duarte Moreira, Glória Dulce de Almeida Soares   +4 more
doaj  

On the electrocatalytical oxygen reduction reaction activity and stability of quaternary RhMo-doped PtNi/C octahedral nanocrystals. [PDF]

Chem Sci, 2022
Hornberger E, Klingenhof M, Polani S, Paciok P, Kormányos A, Chattot R, MacArthur KE, Wang X, Pan L, Drnec J, Cherevko S, Heggen M, Dunin-Borkowski RE, Strasser P.   +13 more
europepmc   +1 more source

Dislocation‐Mediated Lattice Distortion and Griffiths Phase Behavior in Melt‐Spun Ni2MnSb Ribbons

Advanced Science, EarlyView.
This figure illustrates how melt‐spinning introduces dislocations into Ni2MnSb Heusler alloys. TEM images reveal local lattice distortions and associated strain fields surrounding dislocations at a representative wheel speed. As wheel speed increases, these distortions promote the formation of ferromagnetic clusters within a paramagnetic matrix ...
Kun Wang, Siying Yu, Qizhong Zhao, Jiale Guo, Minxia Fang, Yichuan Tang, Pengqaing Hu, Yin Zhang, Chao Zhou, Kaiyan Cao, Fanghua Tian, Sen Yang   +11 more
wiley   +1 more source

Rietveld refinement of neutron, synchrotron and combined powder diffraction data of cement clinker

, 2002
Rietveld refinement of neutron, synchrotron and combined powder diffraction data of cement ...
Laurie Aldridge (13080471), B Hunter (10666704), V Peterson (13322481), A Ray (13322412)   +3 more
core  

Understanding the adsorption mechanism of noble gases Kr and Xe in CPO-27-Ni, CPO-27-Mg, and ZIF-8

, 2014
An experimental study of Xe and Kr adsorption in metal-organic frameworks CPO-27-Ni, CPO-27-Mg, and ZIF-8 was carried out. In situ synchrotron X-ray powder diffraction experiments allowed precise determination of the adsorption sites and sequence of ...
Spanopoulos, I., Liermann, H., McCormick, L. J., Dinnebier, R E, Magdysyuk, O V, Morris, R. E., McCormick, L J, Morris, R., Trikalitis, P., Trikalitis, P. N., Morris, R E, Dinnebier, R. E., Duncan, M. J., Spanopoulos, I, Duncan, M J, Magdysyuk, O., Liermann, H.-P., Trikalitis, P N, Hirscher, M., Hirscher, M, Duncan, M., McCormick, L., Dinnebier, R., Adams, F, Liermann, H. P., Magdysyuk, O. V., Adams, F., Liermann, H-P   +27 more
core   +1 more source

Lattice Distortion‐Driven Metal Exsolution in Perovskite Oxides

Advanced Science, EarlyView.
This study elucidates the mechanism of lattice distortion‐driven exsolution through a combination of computational simulations and experimental approaches. Lattice distortion facilitates the formation of oxygen vacancies and subsequent metal segregation, thereby enhancing the exsolution behavior.
Yo Han Kim, Uchan Jeon, Hyeongwon Jeong, Bo‐Ram Won, Jeong Woo Han, Jae‐ha Myung   +5 more
wiley   +1 more source

Powder diffraction crystal structure determination using generative models

Nature Communications
Accurate crystal structure determination is critical across all scientific disciplines involving crystalline materials. However, solving and refining crystal structures from powder X-ray diffraction (PXRD) data is traditionally a labor-intensive process ...
Qi Li, Rui Jiao, Liming Wu, Tiannian Zhu, Wenbing Huang, Shifeng Jin, Yang Liu, Hongming Weng, Xiaolong Chen   +8 more
doaj   +1 more source

Modification of mixed-nitrogen anions configuration for accelerating lithium ions transport in the LiFePO₄ electrode. [PDF]

RSC Adv, 2023
Choi JY, Kim HM, Kim YS, Lee IS, Cha BC, Kim DW.   +5 more
europepmc   +1 more source