Preparation method and application of monatomic Ni coupled SnO2 nanorod with rich oxygen vacancies

• Main Authors: LIU LINGYUE, FU HEYUN, DENG DONGZHI, ZHENG SHOURONG, SUN YUHAN
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2021
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; METALLURGY; PHYSICS; TESTING

The invention discloses a preparation method and application of a monatomic Ni coupled SnO2 (Ni SA/ROV-SnO2) nanorod with rich oxygen vacancies, and the preparation method comprises the following steps: firstly, synthesizing a SnO2 nanorod by a solvothermal method, then introducing a Ni source by an impregnation method, and conducting calcining in an H2/N2 atmosphere to obtain the NiSA/ROV-SnO2 nanorod. The preparation method is simple, reaction conditions are mild, the size of the prepared NiSA/ROV-SnO2 nanorod is controllable, the prepared monatomic Ni coupled SnO2 (Ni SA/ROV-SnO2) nanorod with rich oxygen vacancies is applied to preparation of a gas sensitive element, and the advantages of good selectivity, high sensitivity and low detection limit on SO2 gas are shown. 本发明公开了一种单原子Ni耦合具有丰富氧空位的SnO2(Ni SA/ROV-SnO2)纳米棒的制备方法和应用，所述制备方法包括以下步骤：首先，通过溶剂热法合成SnO2纳米棒，然后由浸渍法引入Ni源，通过H2/N2氛围煅烧，得到NiSA/ROV-SnO2纳米棒。本发明的制备方法简单，反应条件温和，制备的NiSA/ROV-SnO2纳米棒尺寸可控，将所制备的单原子Ni耦合具有丰富氧空位的SnO2(Ni SA/ROV-SnO2)纳米棒应用于制备气敏元件，对SO2气体表现出了选择性好，灵