种Rh/VO纳米催化剂及其制备方法和应用

• Format: Patent
• Language: Chinese
• Published: 25.01.2019
• 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

本发明公开了种Rh/VO纳米催化剂，Rh原子相互独立、均匀地负载在VO纳米棒表面。本发明还公开了上述Rh/VO纳米催化剂的制备方法，将VO纳米棒均匀分散在去离子水中得到混合液A；向混合液A中加入六氯铑酸钠溶液混合均匀得到混合液B；将混合液B在室温下搅拌定时间，接着洗涤，真空干燥得到Rh/VO纳米催化剂。本发明还公开了上述Rh/VO纳米催化剂在氨硼烷水解制氢反应中的应用。本发明通过单原子的高分散度和与衬底间的强相互作用，降低反应活化能，使其在氨硼烷水解反应中具有高活性。同时，作为种异相催化剂，该种Rh/VO纳米催化剂便于从反应体系中分离，可以多次重复利用，性能稳定。 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