Synthesis of novel highly porous cus golf balls by hydrothermal method and their application in ammonia gas sensing

• JUNCUI XU ^[1] ; JUNJUN ZHANG ^[1] ; CHENGLI YAO ^[2] ; HUAZE DONG ^[2]
  1. [1] University of Technology

     University of Technology

     Rusia

     
  2. [2] Hefei Normal University

     Hefei Normal University

     China

     
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 58, Nº. 2, 2013, págs. 1722-1724
• Idioma: inglés
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• Resumen

  • A novel kind of porous CuS golf balls with an average diameter of 2 µm have been successfully synthesized by using CuCl powders as source PVP as soft template based on a template-directed approach. This process involves the conversion of CuCl to CuS via reaction with H2S, which is produced by hydrolyzing thiourea. The transformation of oxidation state of Cu+ to Cu2+ can proceed smoothly due to the larger lattice energy of CuS in comparison with that of CuCl. The as-prepared samples have been characterized by X-ray diffraction, scanning electron microscopy and photoluminescence analysis. NH3 sensing properties of CuS golf balls with arrays of dimples and indentations have been investigated at room temperature with a simply adapted photoluminescence-type gas sensor. The results reveal that the porous CuS golf balls sensor exhibited excellent performances with a short respond time about 33 s and a short recovery time 44 s respectively.