화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.51, 140-152, July, 2017
DOI10.1016/j.jiec.2017.02.025  Export Citation
Effective hydrogen production from ethanol steam reforming using CoMg co-doped SiO2@Co1 xMgxO catalyst
Kang Min Kim, Byeong Sub Kwak, Younghwan Im, No-Kuk Park1, Tae Jin Lee1, Sang Tae Lee2, and Misook Kang†
  • Department of Chemistry, College of Natural Science, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
  • 1School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
  • 2Wooshin Com., Gyeongsan, Gyeongbuk 38470, Republic of Korea
E-mail:
In this study, the activities of core@shell-structured SiO2@Co1 xMgxO catalysts in ethanol steam reforming (ESR) were investigated, and the promotion effect of Mg upon H2 production was assessed. The loading of SiO2@CoO with Mg resulted in an increase in ethanol conversion and H2 yield with the concomitant suppression of carbon coke deposition and CO emission. Oxygen transfer from the MgO supporter (or improver) to the main cobalt catalytic species during ESR might play a role in maintaining the partially oxidized Co state. In longevity tests, the SiO2@Co1 xMgxO core@shell material, despite being reused three times, exhibited superior H2 production for 100 h without structural collapse or coke formation.
Keywords:Core@shell structure;SiO2@Co1 xMgxO;Ethanol steam reforming;Hydrogen production
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