浙江化工
浙江化工
절강화공
ZHEJIANG CHEMICAL INDUSTRY
2013年
10期
29-33
,共5页
陆晓蕾%张琳%顾运江%刘迎新
陸曉蕾%張琳%顧運江%劉迎新
륙효뢰%장림%고운강%류영신
Ru/C催化剂%硝基苯%苯甲醇%一锅法%N-亚苄基苯胺
Ru/C催化劑%硝基苯%苯甲醇%一鍋法%N-亞芐基苯胺
Ru/C최화제%초기분%분갑순%일과법%N-아변기분알
Ru/C catalyst%nitrobenzene%benzyl alcohol%one-pot%N-benzalaniline
采用软模板法制备出多孔碳材料,以此为载体采用浸渍法制备了Ru/C催化剂,用于硝基苯与苯甲醇“一锅法”合成N-亚苄基苯胺中。利用XRD、SEM、TEM等方法对催化剂进行了表征。考察了Ru负载量对催化剂催化性能的影响,并对反应条件进行了优化。结果表明,Ru负载量为5.0wt%时Ru/C催化剂具有最佳的催化活性和选择性。在实验优化条件下反应22 h,硝基苯转化率为100%,N-亚苄基苯胺选择性可达94.1%。
採用軟模闆法製備齣多孔碳材料,以此為載體採用浸漬法製備瞭Ru/C催化劑,用于硝基苯與苯甲醇“一鍋法”閤成N-亞芐基苯胺中。利用XRD、SEM、TEM等方法對催化劑進行瞭錶徵。攷察瞭Ru負載量對催化劑催化性能的影響,併對反應條件進行瞭優化。結果錶明,Ru負載量為5.0wt%時Ru/C催化劑具有最佳的催化活性和選擇性。在實驗優化條件下反應22 h,硝基苯轉化率為100%,N-亞芐基苯胺選擇性可達94.1%。
채용연모판법제비출다공탄재료,이차위재체채용침지법제비료Ru/C최화제,용우초기분여분갑순“일과법”합성N-아변기분알중。이용XRD、SEM、TEM등방법대최화제진행료표정。고찰료Ru부재량대최화제최화성능적영향,병대반응조건진행료우화。결과표명,Ru부재량위5.0wt%시Ru/C최화제구유최가적최화활성화선택성。재실험우화조건하반응22 h,초기분전화솔위100%,N-아변기분알선택성가체94.1%。
A series of Ru/C catalysts were prepared by impregnation method using the porous carbon materials as support which was prepared by soft template method. The catalysts were used in the one-pot synthesis of N-benzalaniline from nitrobenzene (NB) and benzyl alcohol. The catalysts were characterized by XRD, SEM and TEM. The effect of Ru loading on the catalytic performance of Ru/C was studied, and the reaction conditions were optimized. The results showed that the Ru/C catalyst with 5.0wt% Ru loading exhibited the highest catalytic performance. Under the optimal reaction conditions, the N-benzalaniline selectivity reached 94.1%with 100%conversation of nitrobenzene after reaction 22 h.