Influence of MnO2 polymorphism form on MnO2/Ag2O hydrogen getter

被引：19

作者：

Galliez, Kevin ^{[1
,2
]}

Deniard, Philippe ^{[2
]}

Lambertin, David ^{[1
]}

Jobic, Stephane ^{[2
]}

Bart, Florence ^{[1
]}

机构：

[1] CEA, DEN, DTCD SPDE Marcoule LP2C, F-30207 Bagnols Sur Ceze, France

[2] Univ Nantes, CNRS, Inst Mat Jean Rouxel IMN, F-44322 Nantes 3, France

来源：

JOURNAL OF NUCLEAR MATERIALS | 2013年 / 438卷 / 1-3期

关键词：

MANGANESE OXIDE; GAMMA-MNO2; INSERTION; SILVER; DIFFRACTION; HOLLANDITE; OXIDATION; LITHIUM;

D O I：

10.1016/j.jnucmat.2013.03.053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the influence of MnO2 polymorphism form on MnO2/Ag2O hydrogen getter. The results show that the performances strongly depend on the polymorphism form of manganese oxide. The nsutite gamma-MnO2 phase, which consists of a random intergrowth of MnO2-ramsdellite and MnO2-pyrolusite building blocks, shows the more promising performances to trap H-2 via the formation of hydroxyl groups. This observation is especially relevant for compounds with a low pyrolusite/ramsdellite ratio and a high rate of microtwinnings. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：261 / 267

页数：7

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