中山大学学报(自然科学版)
中山大學學報(自然科學版)
중산대학학보(자연과학판)
ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI
2007年
z1期
17-18
,共2页
硼氢化钠生成%动力学特性%催化剂%反应温度%氢压
硼氫化鈉生成%動力學特性%催化劑%反應溫度%氫壓
붕경화납생성%동역학특성%최화제%반응온도%경압
sodium borohydride formation%kinetic property,catalyst%reaction temperature%hydrogen pressure.
高的氢压和反应温度有利于片硼酸钠与镁和氢反应生成硼氢化钠,但温度接近镁的熔点时不利于硼氢化钠的生成.在反应物中添加铁、镍和钴将加速硼氢化钠的生成,而铜的加入却阻碍硼氢化钠的生成.
高的氫壓和反應溫度有利于片硼痠鈉與鎂和氫反應生成硼氫化鈉,但溫度接近鎂的鎔點時不利于硼氫化鈉的生成.在反應物中添加鐵、鎳和鈷將加速硼氫化鈉的生成,而銅的加入卻阻礙硼氫化鈉的生成.
고적경압화반응온도유리우편붕산납여미화경반응생성붕경화납,단온도접근미적용점시불리우붕경화납적생성.재반응물중첨가철、얼화고장가속붕경화납적생성,이동적가입각조애붕경화납적생성.
The effects of temperature, hydrogen pressure and catalyst addition on sodium borohydride formation were investigated. Higher H2 pressure is of benefit to NaBH4 formation. Increasing reaction temperature can improve NaBH4 formation kinetic property. However, if the temperature is near the melting point of Mg, the NaBH4 formation was impeded. Ni, Fe and Co addition in the H2+Mg+NaBO2 system promoted the NaBH4 formation, but Cu addition showed a negative effect.
