TY - JOUR

T1 - Nickel molybdenum carbides

T2 - Synthesis, characterization, and catalytic activity in hydrodeoxygenation of anisole and ethyl caprate

AU - Smirnov, A. A.

AU - Geng, Zh

AU - Khromova, S. A.

AU - Zavarukhin, S. G.

AU - Bulavchenko, O. A.

AU - Saraev, A. A.

AU - Kaichev, V. V.

AU - Ermakov, D. Yu

AU - Yakovlev, V. A.

PY - 2017/10/1

Y1 - 2017/10/1

N2 - Mo- and Ni-containing carbide catalysts were prepared by a Pechini-based method using citric acid as a complexing agent. All the catalysts were characterized by temperature-programmed reduction, X-ray diffraction (XRD), X-ray photoelectron spectroscopy, and N2 and CO sorption. The XRD experiments showed that the bimetallic systems contain phases: β-Mo2C and Mo3Ni2C and an alloy NixMo1−x with a high nickel content. The catalysts were tested in the hydrogenation of ethyl caprate and anisole. For the process with ethyl caprate, it was shown that the catalytic activity rises with an increase of the carbide phase content in the bimetallic catalysts. Further addition of nickel increases the amount of the Ni–Mo alloy, which leads to a drop in the catalytic activity and to an increase in the contribution of the decarboxylation pathway. The study of the carbide catalysts in anisole hydrogenation showed that a rise in the Ni/Mo ratio leads to an increase in activity.

AB - Mo- and Ni-containing carbide catalysts were prepared by a Pechini-based method using citric acid as a complexing agent. All the catalysts were characterized by temperature-programmed reduction, X-ray diffraction (XRD), X-ray photoelectron spectroscopy, and N2 and CO sorption. The XRD experiments showed that the bimetallic systems contain phases: β-Mo2C and Mo3Ni2C and an alloy NixMo1−x with a high nickel content. The catalysts were tested in the hydrogenation of ethyl caprate and anisole. For the process with ethyl caprate, it was shown that the catalytic activity rises with an increase of the carbide phase content in the bimetallic catalysts. Further addition of nickel increases the amount of the Ni–Mo alloy, which leads to a drop in the catalytic activity and to an increase in the contribution of the decarboxylation pathway. The study of the carbide catalysts in anisole hydrogenation showed that a rise in the Ni/Mo ratio leads to an increase in activity.

KW - Anisole

KW - Decarboxylation

KW - Ethyl caprate

KW - Hydrodeoxygenation

KW - Kinetic studies

KW - MoNiC

KW - NiMo carbide

KW - LIQUID-PHASE HYDROGENATION

KW - OXIDE

KW - ISOMERIZATION

KW - HYDROTREATMENT

KW - REDUCTION

KW - TEMPERATURE

KW - DEOXYGENATION

KW - XPS

KW - NI

KW - NITRIDES

KW - MO3Ni2C

UR - http://www.scopus.com/inward/record.url?scp=85028510954&partnerID=8YFLogxK

U2 - 10.1016/j.jcat.2017.07.009

DO - 10.1016/j.jcat.2017.07.009

M3 - Article

AN - SCOPUS:85028510954

VL - 354

SP - 61

EP - 77

JO - Journal of Catalysis

JF - Journal of Catalysis

SN - 0021-9517

ER -