PdFe bimetallic catalysts for debenzylation of hexabenzylhexaazaisowurtzitane (HBIW) and tetraacetyldibenzylhexaazaisowurtzitane (TADBIW)

PdFe bimetallic catalysts for debenzylation of hexabenzylhexaazaisowurtzitane (HBIW) and tetraacetyldibenzylhexaazaisowurtzitane (TADBIW)
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用于六苄基六氮杂异武兹烷 (HBIW) 和四乙酰基二苄基六氮杂异武兹烷 (TADBIW) 脱苄基的 PdFe 双金属催化剂

DOI:
10.1016/j.catcom.2018.02.008
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发表时间:
2018-05
影响因子:
3.7
通讯作者:
Jun Yang
Jun Yang
中科院分区:
化学3区
文献类型:
--
作者:
Deyuan Lou;Huishu Wang;Shuang Liu;Li Li;Wei Zhao;Xinhan Chen;Junlan Wang;Xiaoqiang Li;Pingfan Wu;Jun Yang

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采用沉淀还原法制备了PdM(M = Ni,Cu,Co,Fe)双金属催化剂。PdFe催化剂具有上级催化性能。采用物理吸附、FESEM、XRD、TEM和XPS等方法进一步研究了不同载体(XC-72、AC、SiO2、Al 2 O3、TiO 2)负载的PdFe催化剂。结果表明,Fe促进了Pd在载体表面的沉淀.同时TiO 2作为更合适的载体,提高了Pd的分散性、表面浓度和有效量,从而提高了PdFe载体对HBIW和TADBIW脱苄基反应的催化活性。
PdM (M = Ni, Cu, Co, Fe) bimetallic catalysts were prepared by a precipitation and then reduction method. PdFe bimetal showed superior catalytic performance. The different supports (XC-72, AC, SiO2, Al2O3, TiO2) loaded PdFe catalysts were further investigated by physical adsorption, FESEM, XRD, TEM and XPS. It was found that Fe promoted the precipitation of Pd on the surface of the supports. Meanwhile TiO2as more suitable supports improved the dispersion, surface concentration and available amount of Pd compared to other carriers and then accelerated the catalytic activities of PdFe bimetal for HBIW and TADBIW debenzylation.
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