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Citation: Fan Yin-Heng, Liao Shi-Jian, Li Wei-Na, Xu Jie, Wang Fu-Dong. Thermal Stability of NanoKH Particles and Their Chemical[J]. Acta Physico-Chimica Sinica, ;2002, 18(01): 55-58. doi: 10.3866/PKU.WHXB20020112 shu

Thermal Stability of NanoKH Particles and Their Chemical

1.
Department of Chemistry, Liaoning Normal University, Dalian　116029;Dalian Institute of Chemical Physics, Chinese Academy of Sciences, P.O.BOX 110 Dalian　116023;State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai　200032

Received Date: 18 June 2001
Available Online: 15 January 2002

The variation of specific surface area and chemical reactivity of nanoKH particles treated at different temperatures has been studied. The BET surface area of nanoKH decreases with the increase of heat treatment temperature, while the chemical reactivity per unit surface increases steadily. These results indicate that the state of KH surface is changed after heat treatment. Large specific surface area of nanoKH is a major factor for its high chemical reactivity, nevertheless, the surface in an activated state with high surface energy is also an important factor for its high chemical reactivity. NanoKH alone can polymerize styrene rapidly with the formation of polystyrene.
- Nano-KH;Thermal stability;Reactivity;Catalytic hydrogenation;　Hydrodechlorination
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