STUDIES OF COPPER HYDRIDE .1. SYNTHESIS AND SOLID-STATE STABILITY

被引：37

作者：

FITZSIMONS, NP

JONES, W

HERLEY, PJ

机构：

[1] UNIV CAMBRIDGE, DEPT CHEM, CAMBRIDGE CB2 1EW, ENGLAND

[2] SUNY STONY BROOK, DEPT MAT SCI & ENGN, LONG ISL, NY 11794 USA

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1995年 / 91卷 / 04期

关键词：

D O I：

10.1039/ft9959100713

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Copper hydride, CuH, has been prepared by the reduction of aqueous copper sulfate using hypophosphorous acid. The polycrystalline red-brown hydride has been analysed using transmission electron microscopy, powder X-ray diffraction (PXRD) and differential scanning calorimetry, and consists of agglomerates of needle-like particles ca. 100 Angstrom in size. It is unstable at room temperature and, in an inert atmosphere, decomposes, as shown by powder XRD, to copper metal and hydrogen. Activation energies of 2.0, 8.5 and 4.7 (+/- 0.4) kcal mol(-1) were obtained for the induction, acceleratory and decay stages of the isothermal decomposition process below 100 degrees C. Above this temperature the solid melts.

引用

页码：713 / 718

页数：6

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