Hydrothermal treatment of submicrometer copper powders for the improved anti-oxidative capacity

ABSTRACT

Copper submicrometer particles have been synthesised via a hydrothermal treatment. The precursor is obtained by means of the reaction of chemical reduction method. The copper powders studied by powder X-ray diffraction exhibit a perfect crystallinity with a lattice constant of 3.629 Ǻ. Meanwhile, the scanning electron microscope photomicrographs and particle size distribution reveal that the powders have an average particle size of 0.4 μm with narrow size distribution. The differential thermal analysis curves indicate that initial oxidation temperature is greatly improved from 212°C to 272°C after hydrothermal treatment, indicating the antioxidant ability of the copper submicrometer particles synthesised by hydrothermal treatment increased obviously.

KEYWORDS:

• Copper powder
• submicrometer
• hydrothermal
• crystallinity
• antioxidant ability

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Dan Zhao

Dan Zhao is currently working as a senior engineer in the 38th Research Institute of China Electronics Technology Group Corporation, Hefei, China. His field of research includes electronic materials, technique and design.

Jiajia Zou

Jiajia Zou is currently working as a senior engineer in the 38th Research Institute of China Electronics Technology Group Corporation, Hefei, China. Her field of research includes electronic materials, technique and design.

Dongping Yin

Dongping Yin is currently working as a senior engineer and technical supervisor in the 38th Research Institute of China Electronics Technology Group Corporation, Hefei, China. His field of research includes electronic materials, technique and design.

Wencheng Hu

Wencheng Hu is currently working as a Professor in the School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China. He has published more than 70 journal articles. His field of research includes nanomaterials and inorganic-organic composite materials for energy and electronics.

Ni Wang

Ni Wang is currently working as an Assistant Professor in the School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China. She has published more than 30 journal articles. Her field of research includes nanomaterials and inorganic-organic composite materials for energy and electronics.