Paper Title:
Synthesis of Novel Chromium Oxide Using Hydrothermal Method and Analysis of its Magnetism and Structure
  Abstract

We have discovered a novel compound Na0.12CrO2Ge0.18Ox•yH2O using a hydrothermal method. Its powder X-ray diffraction reveals a monoclinic unit cell with lattice parameters: a = 7.260 Å, b = 2.950 Å, c = 5.117 Å and β = 103.7°. A Rietveld analysis shows that this compound has a layered structure based on CrO2 sheets consisting of edge-shared CrO6 octahedra. Such a layered structure is commonly seen in many hexagonal Cr oxides such as NaCrO2. A heat treatment at 100 °C modifies the crystal structure without destruction of a layered structure based on Cr triangular-lattice, because H2O molecules among the CrO2 sheets are removed at high temperature. Magnetization measurements reveal a spin-glass behavior below Tg = 3 K.

  Info
Periodical
Solid State Phenomena (Volume 170)
Edited by
J.-L. Bobet, B. Chevalier and D. Fruchart
Pages
29-32
DOI
10.4028/www.scientific.net/SSP.170.29
Citation
S. Ogawa, K. Okuta, H. Sato, "Synthesis of Novel Chromium Oxide Using Hydrothermal Method and Analysis of its Magnetism and Structure", Solid State Phenomena, Vol. 170, pp. 29-32, 2011
Online since
April 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Sang Hyeok Im, Nam Jin Kim, Dong Hwan Kim, Jae Young Kweon, Dong Keon Koo, Tae Hee Kim, Seong Hyeon Heo, Duck Ki Yoon, Bong Ki Ryu
Abstract:The study investigated the crystallization and sintering behavior in Li2O-Al2O3-SiO2 (LAS) glass powder. The sintered sample was produced...
753
Authors: Li Min Gao, Guang Chuan Liang, Li Wang, Xiao Ke Zhi, Xiao Fei Jie
Abstract:LiFePO4/C powders were synthesized by carbothermal reduction method using Li2CO3 (A.R), FePO4 (A.R) and glucose as raw materials. In this...
248
Authors: Chun Lin Fu, Meng Huo, Wei Cai, Xiao Ling Deng
Abstract:BiFeO3 powders were prepared by sol-gel process and calcined at different temperatures. The DTA curve shows an obvious exothermic...
142
Authors: Xiang Zhong Ren, Chuan Shi, Pei Xin Zhang, Jian Hong Liu
Chapter 1: Mineral Materials
Abstract:Layered LiV3O8 cathode material was prepared by sol-gel method using ethylene diamine tetra-acetic acid (EDTA) as...
105
Authors: Yan Zhao Wu, Fei Fei Liang, Kai Ping Zheng, Huai Gu Hu, Yan Ming Hao
Chapter 2: Materials Engineering
Abstract:The phase structure and magnetic were investigated by means of x-ray diffraction and differential thermal /thermogravimetric analyzer. The...
513