CuO nanowhiskers: preparation, structure features, properties, and applications

ABSTRACT

This paper presents the results of a detailed study of the structure of nanowhiskers (NWs) of copper oxide formed in the process of thermal oxidation. It is shown that NWs have a bi- or poly-crystalline structure with a growth direction [110]. It is noted that the formation of NWs is facilitated by the cooperation of internal stresses with the defective structure of the underlying coating, and they grow owing to surface diffusion of copper cations from the depth of the coating to the top of the whisker. It is established that NWs have a good sorption and photocatalytic ability that will allow their use in the chemical industry, including the areas of catalysis and photocatalysis.

KEYWORDS:

• Nanowhiskers
• photocatalyst
• stress state
• defective structure

SUBJECT CLASSIFICATION CODES:

• 2.080
• 8.500
• 8.600

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

M. Dorogov http://orcid.org/0000-0001-5987-3357

L. Sorokin http://orcid.org/0000-0003-2848-5815

A. Myasoedov http://orcid.org/0000-0003-2706-7240

D. Kirilenko http://orcid.org/0000-0002-1571-209X

Additional information

Funding

This work was supported by the Ministry of Education and Science of the Russian Federation (resolution # 220) at the Togliatti State University [grant number 14.Z50.31.0039]. TEM characterisations were performed using equipment of the Federal Joint Research Center ‘Material science and characterisation in advanced technology’ sponsored by the Ministry of Education and Science of the Russian Federation [id RFMEFI62117X0018].