Studies of copper hydride. Part 1.—Synthesis and solid-state stability
Studies of copper hydride. Part 1.—Synthesis and solid-state stability
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氢化铜的研究。第 1 部分——合成和固态稳定性
DOI：
10.1039/ft9959100713
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
P. Herley
中科院分区：
文献类型：
--
作者：
Nuala P. Fitzsimons;W. Jones;P. Herley
氢化铜（CuH）是通过使用次磷酸还原硫酸铜水溶液来制备的。使用透射电子显微镜、粉末 X 射线衍射 (PXRD) 和差示扫描量热法对多晶红棕色氢化物进行了分析，它由针状颗粒的团聚体组成。尺寸为 100 A。它在室温下不稳定，在惰性气氛中，如粉末 XRD 所示，会分解成金属铜和氢气。在低于 100 °C 的等温分解过程的诱导、加速和衰变阶段获得的活化能分别为 2.0、8.5 和 4.7 (±0.4) kcal mol–1。高于此温度，固体熔化。
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 A 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 °C. Above this temperature the solid melts.