섬유

degradation of cotton fabric by electro-generated oxygen: polarization behaviour of the pt anode

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 267
catalytic damage observed during normal hydrogen peroxide bleaching of cotton fabric can be duplicated in experiments in which a cotton fabric, loosely wrapped about a platinum anode, comes in contact with electro-generated oxygen. polarization of the anode up to $plus$ 4000 mv(sse) in an alkaline environment results in the formation of pt(ii) and pt(iv) oxides followed by evolution of o//2 due to rapid exhaustion of oh** $minus$ ion (the source of the o//2) the ph at the pt/fabric interface drops from approx. 11 to 3. the polarization curve reveals the formation of a peak and this behaviour is explained in terms of a change in the mechanism of the oer from that in an alkaline environment to one in an acid medium. (author abstract) 9 refs
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