物理化学学报
物理化學學報
물이화학학보
ACTA PHYSICO-CHIMICA SINICA
2014年
3期
520-526
,共7页
罗小林%杨得锁%原春兰%罗旭梅%陈亚芍
囉小林%楊得鎖%原春蘭%囉旭梅%陳亞芍
라소림%양득쇄%원춘란%라욱매%진아작
Cu2O%均相反应器%高氯酸铵%热分解
Cu2O%均相反應器%高氯痠銨%熱分解
Cu2O%균상반응기%고록산안%열분해
Cu2O%Homogeneous reactor%Ammonium perchlorate%Thermal decomposition
利用均相反应器,在没有添加剂的条件下合成了具有多孔结构的Cu2O微球.考察了合成时间以及反应器旋转速度对Cu2O微球结构的影响.通过增加聚乙烯吡咯烷酮(PVP)的用量,使得Cu2O从多孔微球转变为立方体孪晶,最终形成十四面体孪晶结构.同时,将不同结构的Cu2O多晶应用于催化高氯酸铵(AP)的热分解,结果表明:多孔Cu2O微球较其它结构的Cu2O对AP的热分解具有更高的催化活性,使得AP的低温分解温度降低了37.4°C,而AP在低温阶段的分解量也由8.7%增加至49.0%.
利用均相反應器,在沒有添加劑的條件下閤成瞭具有多孔結構的Cu2O微毬.攷察瞭閤成時間以及反應器鏇轉速度對Cu2O微毬結構的影響.通過增加聚乙烯吡咯烷酮(PVP)的用量,使得Cu2O從多孔微毬轉變為立方體孿晶,最終形成十四麵體孿晶結構.同時,將不同結構的Cu2O多晶應用于催化高氯痠銨(AP)的熱分解,結果錶明:多孔Cu2O微毬較其它結構的Cu2O對AP的熱分解具有更高的催化活性,使得AP的低溫分解溫度降低瞭37.4°C,而AP在低溫階段的分解量也由8.7%增加至49.0%.
이용균상반응기,재몰유첨가제적조건하합성료구유다공결구적Cu2O미구.고찰료합성시간이급반응기선전속도대Cu2O미구결구적영향.통과증가취을희필각완동(PVP)적용량,사득Cu2O종다공미구전변위립방체련정,최종형성십사면체련정결구.동시,장불동결구적Cu2O다정응용우최화고록산안(AP)적열분해,결과표명:다공Cu2O미구교기타결구적Cu2O대AP적열분해구유경고적최화활성,사득AP적저온분해온도강저료37.4°C,이AP재저온계단적분해량야유8.7%증가지49.0%.
Porous Cu2O micro-spheres were synthesized without additives, using a homogeneous reactor. The effects of synthesis time and reactor rol ing speed on the Cu2O micro-spheres structure were investigated. Increasing the use of polyvinylpyrrolidone, the porous Cu2O micro-spheres transformed into cubic twined crystals, and then into cubic-octahedral twined crystals. Cu2O micro-crystals with different structures were used to catalyze the thermal decomposition of ammonium perchlorate (AP). The catalytic activity of porous Cu2O micro-spheres was better than those of the cubic twined and cubic-octahedral twined crystals. The low temperature of AP decomposition decreased for 37.4 °C when catalyzed by the porous Cu2O micro-spheres, and amount of AP decomposed at low temperature increased from 8.7%to 49.0%.