ION-IMPLANTATION OF RANEY COPPER-CATALYSTS

被引：8

作者：

DURBACH, S ^{[1
]}

MELLOR, J ^{[1
]}

COVILLE, NJ ^{[1
]}

DERRY, TE ^{[1
]}

机构：

[1] UNIV WITWATERSRAND,SCHONLAND RES CTR NUCL SCI,2050 JOHANNESBURG,SOUTH AFRICA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1993年 / 80-1卷 / pt 2期

关键词：

D O I：

10.1016/0168-583X(93)96127-X

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Raney copper catalysts promoted with zinc are known to catalyse both methanol synthesis and the water-gas shift reaction. In this work, samples were implanted with Zn+ ions using a specially designed free-powder target holder, and then tested for water-gas shift activity in a chemical microreactor. Beneficial effects in the form of longer sustained activity at higher conversion were observed, extending over several hundred hours, especially for the higher zinc doses. Similar results were obtained with a chromium implant. Control implants with inert gas ions produced no beneficial effects. This study represents the first example of the use of ion implanted promoters in catalysis, on a bench top reactor scale.

引用

页码：294 / 296

页数：3

共 7 条

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[6]

Ziegler J.F., 1985, STOPPING RANGES IONS

[7]

[No title captured]

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