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A novel catalyst was prepared by loading nickel on Shenli lignite char via ion-exchange. The results show that the nickel crystallite size (NCS) and specific surface area (SSA) of the catalyst significantly depended on solution pH and carbonization temperature. The catalyst prepared in pH11 at 650°C reached the maximum SSA of 236.3m2/g and the nickel particles dispersed quite well in the catalyst...
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