氧化镍/氧化锌异质结纳米材料的制备方法

• Format: Patent
• Language: Chinese
• Published: 19.04.2017
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEASURING; METALLURGY; NANOTECHNOLOGY; PERFORMING OPERATIONS; PHYSICS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TESTING; TRANSPORTING

本发明公开了种氧化镍/氧化锌异质结纳米材料的制备方法，用于解决现有方法制备的氧化镍/氧化锌异质结纳米材料灵敏度低的技术问题。技术方案是将四水乙酸镍、六水硝酸锌和氢氧化钠配成的混合溶液，以步水热法合成氧化镍/氧化锌异质结预烧粉体，然后在300～400℃煅烧1～3h得到氧化镍/氧化锌异质结纳米材料，其反应步骤由背景技术的两步减少为步，反应时间由背景技术的60h减少为12h；同时，经气敏性能测试，本发明制备的氧化镍/氧化锌异质结纳米材料气敏传感器工作温度由背景技术的330℃降低至200℃；而且，对100ppm的丙酮气体其灵敏度由背景技术的12提高到15～17。 The invention discloses a method for preparing nickel oxide/zinc oxide heterojunction nanometer materials. By the aid of the method, the technical problem of low sensitivity of nickel oxide/zinc oxide heterojunction nanometer materials prepared by the aid of existing methods can be solved. The technical scheme includes that the method comprises synthesizing nickel oxide/zinc oxide heterojunction pre-sintered powder from mixed solution by the aid of a one-step hydrothermal process; calcining the nickel oxide/zinc oxide heterojunction pre-sintered powder to obtain the nickel oxide/zinc oxide heterojunction nanometer materials. The mixed solution is prepared from nickel acetate tetrahydrate, zinc nitrate hexahydrate and sodium hydroxide