상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제31권5호
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  • Pages.373-381
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  • 2017
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  • 1225-7672(pISSN)
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  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지
DOI QR코드

DOI QR Code

전기적 염소 발생 촉매활성을 위한 성형된 루테늄 산화물 나노로드와 나노시트 전극의 개발

Development of templated RuO2 nanorod and nanosheet electrodes to improve the electrocatalytic activities for chlorine evolution

  • 트란 루 레 (베트남 독일 대학교 메카트로닉스-센서 시스템 학과) ;
  • 김춘수 (서울대학교 화학생물공학부 화학공정 신기술 연구소 & 아시아에너지환경지속가능발전 연구소) ;
  • 윤제용 (서울대학교 화학생물공학부 화학공정 신기술 연구소 & 아시아에너지환경지속가능발전 연구소)
  • Luu, Tran Le (Department of Mechatronics & Sensor Systems Technology, Vietnamese German University) ;
  • Kim, Choonsoo (School of Chemical and Biological Engineering, College of Engineering, Institute of Chemical Process, Asian Institute for Energy, Environment & Sustainability (AIEES), Seoul National University (SNU)) ;
  • Yoon, Jeyong (School of Chemical and Biological Engineering, College of Engineering, Institute of Chemical Process, Asian Institute for Energy, Environment & Sustainability (AIEES), Seoul National University (SNU))
  • 투고 : 2017.07.25
  • 심사 : 2017.09.04
  • 발행 : 2017.10.31
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초록

$RuO_2$ is a common active component of Dimensionally Stable Anodes (DSAs) for chlorine evolution that can be used in wastewater treatment systems. The recent improvement of chlorine evolution using nanostructures of $RuO_2$ electrodes to increase the treatment efficiency and reduce the energy consumption of this process has received much attention. In this study, $RuO_2$ nanorod and nanosheet electrodes were simply fabricated using the sol-gel method with organic surfactants as the templates. The obtained $RuO_2$ nanorod and nanosheet electrodes exhibit enhanced electrocatalytic activities for chlorine evolution possibly due to the active surface areas, especially the outer active surface areas, which are attributed to the increase in mass transfers compared with a conventional nanograin electrode. The electrocatalytic activities for chlorine evolution were increased up to 20 % in the case of the nanorod electrode and 35% in the case of the nanosheet electrode compared with the nanograin electrode. The $RuO_2$ nanorod 80 nm in length and 20-30 nm in width and the $RuO_2$ nanosheet 40-60 nm in length and 40 nm in width are formed on the surface of Ti substrates. These results support that the templated $RuO_2$ nanorod and nanosheet electrodes are promising anode materials for chlorine evolution in future applications.

키워드

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