SPINELS

作品数：27被引量：47H指数：5
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DFT investigation of half-metallic ferromagnetic rare earth based spinels MgHo_(2)Z_(4)(Z=S,Se)被引量：1
《Journal of Rare Earths》2024年第1期121-128,I0005,共9页Maiza Zanib Mumtaz Manzoor N.A.Noor M.Waqas Iqbal Mazia Asghar H.H.Hegazy A.Laref 
the Deanship of Scientific Research at King Khalid University for funding this work through the small Groups Project under grant number(R.G.P.1/153/43)。
Half-metallic ferromagnetism,mechanical as well as thermoelectric properties for rare earth-based spinels MgHo_(2)Z_(4)(Z=S,Se)were investigated using density functional theory(DFT).Structural optimization was done wi...
关键词：Ho-based spinels DFT simulations Mechanical parameters Electronic properties HM ferromagnetism Figure of merit 
Gemological-Mineralogical Characteristic of Spinels from Sri Lanka
《宝石和宝石学杂志（中英文）》2023年第6期42-57,共16页Pantaree Lomthong Dietmar Schwarz Gamini Zoyza Yanyu Chen Yicen Liu 
Detailed mineralogical and gemological records were conducted on 340 unheated spinels from the Horana, Eheliyagoda, Ratnapura, and Okkampatiya mining areas in Sri Lanka. The color of Sri Lankan spinel varies greatly: ...
关键词：gemological-mineralogical characteristic SPINEL Sri Lanka SPECTROSCOPY INCLUSION 
Development of bimetallic spinel catalysts for low-temperature decomposition of ammonium dinitramide monopropellants
《Defence Technology（防务技术）》2023年第12期47-54,共8页C.Shamjitha Anuj A.Vargeese 
financial support by DST-SERB (Grant No.SRG/2021/001182);DRDO (Grant No.ARMREB/HEM/2021/241)is gratefully acknowledged。
Ammonium dinitramide(ADN)based liquid monopropellants have been identified as environmentally benign substitutes for hydrazine monopropellant.However,new catalysts are to be developed for making ADN monopropellants co...
关键词：ADN monopropellant Mixed metal oxides Doped spinels Catalytic decomposition 
Ultrafast Preparation of Nonequilibrium FeNi Spinels by Magnetic Induction Heating for Unprecedented Oxygen Evolution Electrocatalysis
《Research》2022年第4期165-177,共13页Bingzhang Lu Qiming Liu Chunyang Wang Zaheer Masood David J.Morris Forrest Nichols Rene Mercado Peng Zhang Qingfeng Ge Huolin L.Xin Shaowei Chen 
This work was supported by grants from the National Science Foundation(CHE-1900235 and CHE-2003685,S.W.C.and CHE-1900401,H.L.X.);Part of the TEM and XPS work was carried out at the National Center for Electron Microscopy and Molecular Foundry,Lawrence Berkeley National Laboratory,which is supported by the Office of Science,Office of Basic Energy Sciences,of U.S.Department of Energy under Contract No.DE-AC02-05CH11231,as part of a user project.The XAS work used resources of the Advanced Photon Source,a User Facility operated for the U.S.Department of Energy(DOE)Office of Science by Argonne National Laboratory and was supported by the DOE under contract No.DE-AC02-06CH11357 and the Canadian Light Source and its funding partners;This research also used resources of the Center for Functional Nanomaterials(CFN),which is a U.S.Department of Energy Office of Science User Facility,at Brookhaven National Laboratory under Contract No.DE-SC0012704;The authors also thank Mr.Jeremy Barnett for the assistance in sample preparation and data acquisition of X-ray diffraction measurements in the UCSC X-ray Facility which was funded by the National Science Foundation(MRI-1126845).
Carbon-supported nanocomposites are attracting particular attention as high-performance,low-cost electrocatalysts for electrochemical water splitting.These are mostly prepared by pyrolysis and hydrothermal procedures ...
关键词：QUENCHING OXYGEN attracting 
Effect of Spinels on Properties of MgO-Al_(2)O_(3) Refractories for RH Snorkels被引量：1
《China's Refractories》2021年第3期1-6,共6页ZHAO Huizhong LI Jingjie 
With satisfactory high temperature properties,thermal shock resistance and mechanical properties,refractories in the MgO-Al_(2)O_(3) system have become promising alternative to MgO-Cr_(2)O_(3) counterpart used as RH s...
关键词：magnesium aluminate spinel magnesia-alumina refractories RH snorkel properties 
Computational study of inverse ferrite spinels被引量：1
《Chinese Physics B》2019年第5期305-311,共7页A EL Maazouzi R Masrour A Jabar M Hamedoun 
The magnetic properties of inverse ferrite Fe_(3+) Fe_(3+)Co_(2+) O^(2-)_4, Fe^(3+) Fe^(3+)Cu^(2+) O^2_(-4), Fe^(3+) Fe^(3+)Fe^(2+) O^2_(-4),and Fe^(3+) Fe^(3+)Ni^(2+) O^(2-)_4spinels have been studied using Monte Car...
关键词：INVERSE ferrites SPINELS Monte Carlo simulation CRITICAL and CURIE Weiss TEMPERATURES magnetic hysteresis cycles CRITICAL EXPONENTS 
Effect of Synthetic Parameters on Synthesis of Magnesium Aluminum Spinels被引量：1
《Journal of Materials Science and Chemical Engineering》2019年第3期1-15,共15页Jinxia Duan Xiuhui Wang Youfei Zhang Hong Gao Yan Xie Jinlong Yang 
In this work, the magnesium aluminum spinel (MgAl2O4) was prepared by Mg and Al as precursors through a method of sol-gel subsequent with high temperature calcination. The wide range of synthetic conditions, including...
关键词：ALKOXIDE HYDROLYSIS MGAL2O4 SYNTHETIC PARAMETERS 
Electrochemical properties of niobium and phosphate doped spherical Li-rich spinel LiMn2O4 synthesized by ion implantation method被引量：2
《Chinese Chemical Letters》2017年第7期1438-1446,共9页Wei Li Gao-Wa Siqin Zhi Zhu Lu Qi Wen-Huai Tian 
supported by a grant from the National High Technology Research and Development Program of China(863 Program)(No.2008AA11A102)
Spherical Li-rich lithium manganese oxide（LMO） spinel material was synthesized by an ion implanted method assisted by polyalcohol doped with Niobium and Phosphate simultaneously.The material was characterized by sca...
关键词：Spinels Ion implantation Li-ion batteries LiMn2O4 Doping 
Optical properties and magnetic properties of antisite-disordered Ni_(1-x)Co_xCr_2O_4 spinels被引量：1
《Transactions of Nonferrous Metals Society of China》2017年第4期863-867,共5页Yu GAO Hong CHANG Qiang WU Hong-yan WANG Yan-bo PANG Fang LIU Hong-jing ZHU Yue-hou YUN 
Project(11264024)supported by the National Natural Science Foundation of China;Projects(2015MS0102,2015MS0524)supported by Natural Science Foundation of Inner Mongolia,China
From the UV?Vis absorption spectra,the FT-IR absorption spectra and the Raman spectra,it is deduced that Co ionsprimarily occupy the tetrahedral(A)site,with a minor number of them entering into the octahedral(B)site i...
关键词：SPINEL antisite defect electronic transition optical properties magnetic properties 
Synthesis and electrochemical properties of dual doped spinels LiNi_xAl_yMn_(2-x-y)O_4 via facile novel chelated sol–gel method as possible cathode material for lithium rechargeable batteries被引量：5
《Journal of Energy Chemistry》2017年第1期101-114,共14页R.Thirunakaran Gil Hwan Lew Won-Sub Yoon 
support given under the "Brain Pool Program of the Korean Federation of Science and Technology Societies" (KOFST), Republic of South Korea;supported by the Human Resources Development Program (No. 20124010203270) of the Korea Institute of Energy Technology Evaluation;Planning (KETEP) grant funded by the Korea Government Ministry of Trade, Industry and Energy
LiMnOand LiNiAlyMnO（x= 0.50;y = 0.05-0.50） powders have been synthesized via facile solgel method using Behenic acid as active cheiating agent.The synthesized samples are subjected to physical characterizations such...
关键词：Multi-doping Sol–gel method Behenic acid Differential capacity Spinel cathode 
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