TY - JOUR
T1 - Lithiation reactions of Zn- and Li-birnessites in non-aqueous solutions and their stabilities
AU - Liu, Lihui
AU - Feng, Qi
AU - Yanagisawa, K.
AU - Bignall, G.
AU - Hashida, T.
PY - 2002/4/1
Y1 - 2002/4/1
N2 - Zn- and Li-birnessites were synthesized from Na-birnessite by ion-exchange reactions. The ion-exchange reaction, chemical lithiation reaction in non-aqueous solution, and stability for these birnessites were investigated by XRD, TG-DTA, and chemical analyses. The Zn-birnessite showed greater thermal stability than Li-birnessite. The Zn- and Li-birnessites can be lithiated up to Li/Mn molar ratios of 0.45 and 1.08, respectively, by reaction in a Lil-acetonitrile solution. The lithiation of Zn-birnessite progressed by a redox topotactic reaction, but the Li-birnessite was unstable during the lithiation reaction. The lithiated Zn-birnessite showed greater thermal stability than lithiated Li-birnessite. The Zn species in the interlayer space of lithiated Zn-birnessite acts as a pillar for the stabilization of the layered structure.
AB - Zn- and Li-birnessites were synthesized from Na-birnessite by ion-exchange reactions. The ion-exchange reaction, chemical lithiation reaction in non-aqueous solution, and stability for these birnessites were investigated by XRD, TG-DTA, and chemical analyses. The Zn-birnessite showed greater thermal stability than Li-birnessite. The Zn- and Li-birnessites can be lithiated up to Li/Mn molar ratios of 0.45 and 1.08, respectively, by reaction in a Lil-acetonitrile solution. The lithiation of Zn-birnessite progressed by a redox topotactic reaction, but the Li-birnessite was unstable during the lithiation reaction. The lithiated Zn-birnessite showed greater thermal stability than lithiated Li-birnessite. The Zn species in the interlayer space of lithiated Zn-birnessite acts as a pillar for the stabilization of the layered structure.
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U2 - 10.1023/A:1014504125281
DO - 10.1023/A:1014504125281
M3 - Article
AN - SCOPUS:0036531769
VL - 37
SP - 1315
EP - 1320
JO - Journal of Materials Science
JF - Journal of Materials Science
SN - 0022-2461
IS - 7
ER -