Ni, Co and Ni-Co-Modified Tungsten Carbides Obtained by an Electric Arc Method as Dry Reforming Catalysts

Ni, Co and Ni-Co-Modified Tungsten Carbides Obtained by an Electric Arc Method as Dry Reforming Catalysts

Bibliographic Details
Parent link:	Catalysts Vol. 12 iss. 12.— 2022.— [1631, 17 p.]
Corporate Authors:	Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий Лаборатория "Химическая инженерия и молекулярный дизайн", Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Other Authors:	Bolatova Zh. S. Zhanar Sanatovna, German D. Yu. Dmitry Yuryevich, Pakrieva E. G. Ekaterina Germanovna, Pak A. Ya. Aleksandr Yakovlevich, Larionov K. B. Kirill Borisovich, Carabineiro S. A. C. Sonia Alexandra Correia, Bogdanchikova N. Nina, Kolobova E. N. Ekaterina Nikolaevna, Pestryakov A. N. Aleksey Nikolaevich
Summary:	Title screen Dry reforming of methane (DRM), to produce synthesis gas, is one of the most important chemical reactions used for the industrial production of hydrogen and leads to the synthesis of hydrocarbons (liquid fuels) and other valuable products. A cost-effective alternative to active and stable noble metal DRM catalysts, with comparable catalytic performance, can be composite materials based on nickel, cobalt and transition metal carbides. In this line, the present work proposes a non-standard way to obtain dry reforming catalysts of Ni, Co and Ni-Co-modified tungsten carbide (WC) produced by an electric arc method. Different amounts of nickel, cobalt and their mixtures were deposited on tungsten carbide by deposition-precipitation with NaOH (DP) and incipient wetness impregnation (IWI) methods. The resulting materials were characterized by N2 adsorption-desorption, transmission electron microscopy, energy dispersive spectroscopy, X-ray diffraction and X-ray photoelectron spectroscopy, and their performance was evaluated in DRM. The composition and preparation method of catalysts predetermined their structural, textural and electronic properties, playing a decisive role in their activity for DRM. DP-prepared 20%Ni/WC material remained resistant to oxidation, both that of the active metal (nickel) and of the tungsten carbide, as well as to coking during DRM. This sample proved to be the most active and stable among all studied materials. Possibly, the resistance to oxidation and coking was due to a more efficient implementation of the oxidation/(re)carbonization cycle on the surface of this catalyst.
Published:	2022
Subjects:	электронный ресурс труды учёных ТПУ methane dry reforming tungsten carbide Ni- and Co-based catalyst catalyst stability oxidation coking resistance
Online Access:	https://doi.org/10.3390/catal12121631
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668687

Internet

https://doi.org/10.3390/catal12121631