Multi-element metal hydroxide as well as preparation method and application thereof

• Main Authors: NIU XUEZHI, ZHANG KAILI, YANG SHAORAN
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; ELECTRICITY; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The invention provides a multi-element metal hydroxide as well as a preparation method and application thereof. The preparation method comprises the following steps: soaking a conductive substrate in a mixed solution containing a first metal salt and an ammonia-containing compound, and carrying out hydrothermal reaction to obtain a nanocrystalline seed; and immersing the nanocrystalline seed into a mixed solution containing a second metal salt and an ammonia-containing compound, and carrying out a hydrothermal reaction to obtain the multi-element metal hydroxide. The invention also provides the multi-element metal hydroxide which is obtained by the preparation method, and the multi-element metal hydroxide comprises a nano crystal seed structure. The invention further provides an electrode material which comprises the multi-element metal hydroxide. According to the preparation method provided by the invention, nanocrystalline seed induced growth and hydrothermal synthesis are combined, and the prepared multi-e