Aqueous Phase Methanol Reforming Catalyzed by Fe-Cu Alloy Nanoparticles Wrapped on Nitrogen-Doped Graphene

被引：8

作者：

Garcia-Baldovi, Alberto ^{[1
]}

Peng, Lu ^{[1
,2
]}

Santiago-Portillo, Andrea ^{[1
]}

Asiri, Abdullah M. ^{[3
]}

Primo, Ana ^{[1
]}

Garcia, Hermenegildo ^{[1
,3
]}

机构：

[1] Univ Politecn Valencia, Inst Univ Tecnol Quim CSIC UPV, E-46022 Valencia, Spain

[2] Max Planck Inst Colloids & Interfaces, Dept Colloid Chem, D-14476 Potsdam, Germany

[3] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, Jeddah 22254, Saudi Arabia

来源：

ACS APPLIED ENERGY MATERIALS | 2022年 / 5卷 / 07期

关键词：

heterogeneous catalysis; aqueous phase reforming; hydrogen from methanol; liquid hydrogen organic carrier; N-doped graphitic carbon as a support; HYDROGEN-PRODUCTION; PARTICLE-SIZE; CARBON; GLYCEROL; CHITOSAN; RICH;

D O I：

10.1021/acsaem.2c01806

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Small Fe-Cu nanoparticles (NPs) (about 1 nm) supported at a high loading (over 10 wt %) on N-doped graphitic carbon have been prepared in a single pyrolytic step from chitosan adsorbing Cu2+ and Fe2+ salts. The presence of N atoms appears to be crucial in the formation of small-sized metallic NPs. Interactions between Fe and Cu are reflected by a shift in the binding energy to higher (Fe) or lower (Cu) values and by H-2 thermo-programmed reduction measurements, showing a new reduction peak at intermediate temperature (375 degrees C) between that of Cu (175 degrees C) and that of Fe (450 degrees C). Fe-Cu NPs embedded within the N-doped graphitic carbon matrix are extremely active (TOF 315 h(-1)) and selective (no CO detected) catalysts for methanol reforming in the aqueous phase with stoichiometric H2O amounts to H-2 and CO2. The results achieved with Fe-Cu compare favorably with those reported in the literature for catalysts based on Pt, Pd, or Ru.

引用

页码：9173 / 9180

页数：8

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