Platelet-like nickel hydroxide: synthesis and the transferring to nickel oxide as a gas sensor

Guoxing Zhu; Huan Xu; Yuanjun Liu; Chunyan Xi; Jing Yang; Xiaoping Shen; Jun Zhu; Jinglei Yang

doi:10.1016/j.jcis.2013.09.019

Platelet-like nickel hydroxide: synthesis and the transferring to nickel oxide as a gas sensor

J Colloid Interface Sci. 2013 Dec 15:412:100-6. doi: 10.1016/j.jcis.2013.09.019. Epub 2013 Sep 21.

Authors

Guoxing Zhu¹, Huan Xu, Yuanjun Liu, Chunyan Xi, Jing Yang, Xiaoping Shen, Jun Zhu, Jinglei Yang

Affiliation

¹ School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China.

PMID: 24144380
DOI: 10.1016/j.jcis.2013.09.019

Abstract

Free-standing Ni(OH)2 platelet-like nanostructures with average width of 124 nm and thickness of 19 nm were successfully prepared through a simple one-pot polymer assisted process. The preparation involves the assistance of poly (sodium-4-styrene sulfonate) (PSS) and is easy to perform. The influence of pH value on the structure of the Ni(OH)2 product was investigated and it was found that pH value plays an important role for the formation of free-standing Ni(OH)2 nanoplatelets. A possible formation mechanism is proposed. In addition, from the obtained Ni(OH)2 nanoplatelets, a NiO sensor was fabricated and tested, which exhibits a 5 ppm sensing sensitivity to ethanol and propanol.

Keywords: Gas sensing; Nanoplatelet; Ni(OH)(2); Oxide.