催化学报
催化學報
최화학보
CHINESE JOURNAL OF CATALYSIS
2015年
2期
148-152
,共5页
刘贡钢%余林遇%朱玉超%郭晓光%周永华%叶红齐
劉貢鋼%餘林遇%硃玉超%郭曉光%週永華%葉紅齊
류공강%여림우%주옥초%곽효광%주영화%협홍제
钯催化剂%草簇状结构石墨烯%对羧基苯甲醛%加氢
鈀催化劑%草簇狀結構石墨烯%對羧基苯甲醛%加氫
파최화제%초족상결구석묵희%대최기분갑철%가경
Pd catalyst%Grass-like graphene%4-Carboxybenzaldehyde%Hydrogenation
通过氨基离子液体改性石墨烯,并将其固载于堇青石表面,作为负载型Pd催化剂的载体。所制备的Pd催化剂经加氢老化后,表面石墨烯呈草簇状结构,将Pd纳米粒子限域于片层内,有效防止了Pd的流失和团聚。在重要的工业反应对羧基苯甲醛(4-CBA)加氢中,此结构催化剂与传统的钯碳催化剂相比,表现出很好的稳定性。
通過氨基離子液體改性石墨烯,併將其固載于堇青石錶麵,作為負載型Pd催化劑的載體。所製備的Pd催化劑經加氫老化後,錶麵石墨烯呈草簇狀結構,將Pd納米粒子限域于片層內,有效防止瞭Pd的流失和糰聚。在重要的工業反應對羧基苯甲醛(4-CBA)加氫中,此結構催化劑與傳統的鈀碳催化劑相比,錶現齣很好的穩定性。
통과안기리자액체개성석묵희,병장기고재우근청석표면,작위부재형Pd최화제적재체。소제비적Pd최화제경가경노화후,표면석묵희정초족상결구,장Pd납미입자한역우편층내,유효방지료Pd적류실화단취。재중요적공업반응대최기분갑철(4-CBA)가경중,차결구최화제여전통적파탄최화제상비,표현출흔호적은정성。
Pd nanoparticles were confined in grass‐like graphene layers on monolithic cordierite by using NH2‐ion liquid C7H14ClN3 functionalized graphene sheets. These were used as the catalyst for the hydrogenation of 4‐carboxybenzaldehyde. The catalyst exhibited high stability compared to Pd/activated carbon catalyst due to the inhibition of Pd leaching and aggregation.