Rh/VO2 nano catalyst and preparation method and application thereof

• Main Authors: WANG MENGLIN, FENG CHEN, ZENG JIE, LI HONGLIANG, WANG LIANGBING, ZHANG WENBO
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2017
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses an Rh/VO2 nano catalyst, wherein Rh atoms are mutually independent and uniformly loaded on the surface of VO2 nanorods. The invention also discloses a preparation method of the Rh/VO2 nano catalyst, wherein the preparation method comprises the steps: uniformly dispersing the VO2 nanorods in deionized water to obtain a mixed liquid A; adding sodium hexachlororhodate solution to the mixed solution A, and mixing uniformly to obtain a mixed solution B; and stirring the mixed solution B for a certain time at room temperature, then washing, and vacuum-drying to obtain the Rh/VO2 nano catalyst. The invention also discloses an application of the Rh/VO2 nano catalyst in reaction of hydrolysis of ammonia borane for hydrogen production. Through high dispersion of single atoms and strong interaction with a substrate, t he reaction activation energy is reduced, so as to make the catalyst have high activity in the ammonia borane hydrolysis reaction. At the same time, as a heterogeneous catalyst, the