Study on positron annihilation spectroscopy of methanol synthesis catalyst CuO/ZnO

Qisheng Liu; Guohuan Dai; Jiying Sun; Yingru Ding; Jianhua Yao

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Study on positron annihilation spectroscopy of methanol synthesis catalyst CuO/ZnO

更新时间：2022-08-16

- Study on positron annihilation spectroscopy of methanol synthesis catalyst CuO/ZnO
- Nuclear Techniques Vol. 12, Issue 12, (1989)
- 作者机构：
  
  南京大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：23 December 1987，
  
  Published：1989-12
- 稿件说明：
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Qisheng Liu, Guohuan Dai, Jiying Sun, et al. Study on positron annihilation spectroscopy of methanol synthesis catalyst CuO/ZnO[J]. Nuclear techniques, 1989, 12(12): 731-733.
DOI：

Qisheng Liu, Guohuan Dai, Jiying Sun, et al. Study on positron annihilation spectroscopy of methanol synthesis catalyst CuO/ZnO[J]. Nuclear techniques, 1989, 12(12): 731-733. DOI：

摘要

发展了用正电子湮没寿命参数测定用共沉淀方法制备的金属氧化物系固溶度的新方法。测量了一系列用共沉淀方法制备的不同CuO at%含量的CuO/ZnO甲醇合成催化剂粉末（压制成片）还原前后的正电子寿命谱。分析该种催化剂的固溶特性及其与正电子寿命参数的关系，得出还原后样品的固溶度为12CuOat%。支持了CuO/ZnO甲醇合成催化剂以Cu

离子为活性中心的观点。

Abstract

A new method was developed determining the solid solubility of a metal oxide series prepared by precipitation using the positron lifetime parameters. The positron lifetime spectra were measured of a seris of CuO/ZnO catalysts prepared by precipitation in which the CuO at% contents were different before and after reduced. The relations were obtained between the solid solubility of the catalysts and the positron lifetime parameters

from which a result of solid solubility of 12 CuO at% after reduced had been found. The viewpoint that the Cu

ion acted as the active centre in the CuO/ZnO catalyst was supported.

关键词

Keywords

references

R. G. Hermen et al ., J. Catal. , 56 （ 1979 ）, 407 .

G. Vlaic et al . , J. Catal . , 96 （ 1985 ）, 314 .

陈鸿博，厦门大学理学博士论文， 1986 年。

丁莹如和姚建华，燃料化学学报，待发表。

戴国欢、刘其盛等， POSITRONFIT程序在IBM PC系列机上的实现，第三届全国正电子湮没谱学会议，合肥， 1987年10月 .

M. Bertolaccini et al ., J . phys. C Solid St . phps. , 4 （ 1971 ）, 734 .

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