Preparation method and application of cobalt phosphide nanosheet array three-function catalyst

• Main Authors: SHAN DAN, GONG YUXIAO, XU LIANHUA, CHE PENGCHENG
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a preparation method and application of a cobalt phosphide nanosheet array three-function catalyst, and the preparation method comprises the following steps: adding amino trimethylene phosphonic acid (ATMP) into a hot water solution in which melamine is completely dissolved to form a supramolecular gel precursor; then, cobalt salt is added into the supramolecular gel precursor solution for a reaction, and a pink product is obtained; and further putting the product into a tubular furnace, and calcining at high temperature in a protective gas atmosphere to obtain the cobalt phosphide nanosheet array three-function catalyst. The invention provides a simple Lewis acid-base interaction strategy, Lewis acid ATMP is used as a proton donor, and Lewis base melamine is used as a proton donor. ATMP and melamine are combined through a hydrogen bond, so that the strong chelating ability of Co < 2 + > and ATMP is greatly weakened. In the high-temperature calcination process, the cobalt organic phos