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典型文献
Carbon-coated Ni-Co alloy catalysts:preparation and performance for in-situ aqueous phase hydrodeoxygenation of methyl palmitate to hydrocarbons using methanol as the hydrogen donor
文献摘要:
Carbon-coated Ni,Co and Ni-Co alloy cata-lysts were prepared by the carbonization of the metal doped resorcinol-formaldehyde resins synthesized by the one-pot extended St?ber method.It was found that the introduction of Co remarkably reduced the carbon micro-sphere size.The metallic Ni,Co,and Ni-Co alloy particles(mainly 10-12 nm)were uniformly distributed in carbon microspheres.A charge transfer from Ni to Co appeared in the Ni-Co alloy.Compared with those of metallic Ni and Co,the d-band center of the Ni-Co alloy shifted away from and toward the Fermi level,respectively.In the in-situ aqueous phase hydrodeoxygenation of methyl palmitate with methanol as the hydrogen donor at 330℃,the decarbonylation/decarboxylation pathway dominated on all catalysts.The Ni-Co@C catalysts gave higher activity than the Ni@C and Co@C catalysts,and the yields of n-pentadecane and n-C6-n-C16 reached 71.6%and 92.6%,respectively.The excellent performance of Ni-Co@C is attributed to the electronic interactions between Ni and Co and the small carbon microspheres.Due to the confinement effect of carbon,the metal particles showed high resistance to sintering under harsh hydrothermal conditions.Catalyst deactivation is due to the carbonaceous deposition,and the regeneration with CO2 recovered the catalyst reactivity.
文献关键词:
作者姓名:
Yinteng Shi;Lin Ai;Haonan Shi;Xiaoyu Gu;Yujun Han;Jixiang Chen
作者机构:
Tianjin Key Laboratory of Applied Catalysis Science and Technology,Department of Catalysis Science and Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China
引用格式:
[1]Yinteng Shi;Lin Ai;Haonan Shi;Xiaoyu Gu;Yujun Han;Jixiang Chen-.Carbon-coated Ni-Co alloy catalysts:preparation and performance for in-situ aqueous phase hydrodeoxygenation of methyl palmitate to hydrocarbons using methanol as the hydrogen donor)[J].化学科学与工程前沿,2022(04):443-460
A类:
decarbonylation,pentadecane
B类:
Carbon,coated,alloy,catalysts,preparation,performance,situ,aqueous,phase,hydrodeoxygenation,methyl,palmitate,hydrocarbons,using,methanol,hydrogen,donor,were,prepared,by,carbonization,doped,resorcinol,formaldehyde,resins,synthesized,one,pot,extended,St,ber,method,It,was,found,that,introduction,remarkably,reduced,metallic,particles,mainly,uniformly,distributed,microspheres,charge,transfer,from,appeared,Compared,those,band,center,shifted,away,toward,Fermi,level,respectively,In,decarboxylation,pathway,dominated,gave,higher,yields,C6,C16,reached,excellent,attributed,electronic,interactions,between,small,Due,confinement,effect,showed,resistance,sintering,under,harsh,hydrothermal,conditions,Catalyst,deactivation,due,carbonaceous,deposition,regeneration,recovered,reactivity
AB值:
0.507542
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