In situ EXAFS study on nickel metal particles dispersed on Loy Yang brown coal.
The structure of nickel catalysts supported on Loy Yang brown coal by an ion-exchanging method during thermal treatment was studied by a XAFS technique. The exchanged nickel species aggregated to metal particles during pyrolysis and hydrogasification. The aggregation behaviour of nickel species depended on the amount of nickel loaded and/or treatment atmospheres.
Shirai
M
M
Institute for Chemical Reaction Science, Tohoku University, Katahira, Sendai, Japan. mshirai@icrs.tohoku.ac.jp
Arai
M
M
Murakami
K
K