title: Solvothermal synthesis of nickel-tungsten sulfides for 2-propanol dehydration.
abstract: The bimetallic nickel-tungsten catalysts were prepared via solvothermal method. The X-ray Diffractometer (XRD) analysis revealed that the corresponding peaks at 14°, 34°, and 58° were for tungsten disulfide (WS2 ) hexagonal phase. The catalysts displayed different crystalline phase with nickel addition, and as an effect the WS2 surface area decreased from 74.7 to 2.0 m(2) g(--1) . In this sense, high-resolution transmission electron microscopy (HRTEM) showed the layers set in direction (002) with an onion-like morphology, and in the center of the particles there is a large amount of nickel contained with 6-8 layers covering it. The catalytic dehydration of 2-propanol was selective to propene in 100% at 250 °C for the sample with 0.7 of atomic ratio of Ni/Ni + W.
authors: Facultad de Ingeniería, Arquitectura y Diseño, UABC, Ensenada B.C., México.
authors: Claudia M
authors: CM
authors: Gómez-Gutiérrez
authors: Facultad de Ingeniería, Arquitectura y Diseño, UABC, Ensenada B.C., México.
authors: P A
authors: PA
authors: Luque
authors: Facultad de Ingeniería, Arquitectura y Diseño, UABC, Ensenada B.C., México.
authors: G
authors: G
authors: Guerra-Rivas
authors: PCeIM, Centro de Nanociencias y Nanotecnología-UNAM, Km. 107 Carretera Tijuana-Ensenada, Ensenada B.C., México.
authors: J A
authors: JA
authors: López-Sánchez
authors: PCeIM, Centro de Nanociencias y Nanotecnología-UNAM, Km. 107 Carretera Tijuana-Ensenada, Ensenada B.C., México.
authors: M A
authors: MA
authors: Armenta
authors: Facultad de Ciencias Químicas e Ingeniería, UABC, Calzada Universidad, Parque Industrial Internacional Tijuana, Tijuana B.C., México.
authors: J M
authors: JM
authors: Quintana
authors: Centro de Nanociencias y Nanotecnología - UNAM, Km. 107 Carretera Tijuana-Ensenada, Ensenada B.C., México.
authors: A
authors: A
authors: Olivas
keywords: 2-propanol; WS2; propene; selectivity; solvothermal method