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Methane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst : influence of pretreatment gas atmospheres

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Methane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst : influence of pretreatment gas atmospheres
นักวิจัย : Liu, Dapeng , Wang, Yifan , Shi, Daming , Jia, Xinli , Wang, Xin , Borgna, Armando , Lau, Raymond , Yang, Yanhui
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Liu, D., Wang, Y., Shi, D., Jia, X., Wang, X., Borgna, A., et al. (2012). Methane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst: Influence of pretreatment gas atmospheres. International Journal of Hydrogen Energy, 37(13), 10135-10144. , 0360-3199 , http://hdl.handle.net/10220/11565 , http://dx.doi.org/10.1016/j.ijhydene.2012.03.158
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : International journal of hydrogen energy
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Carbon dioxide reforming of methane to synthesis gas was studied over Ni/ZrO2–SiO2 catalyst under different pretreatment atmospheres. Characterization using powder X-ray diffraction, H2 temperature-programmed reduction, H2 temperature-programmed hydrogenation, TG/DTA, XPS, Raman spectra and transmission electron microscopy techniques revealed that gas atmospheres employed in the catalyst pretreatment have a significant influence on the catalytic performance. The helium-pretreated catalyst was found to be the most suitable catalyst for this application, showing the improved catalytic performance. More specifically, helium pretreatment facilitated the generation of well-distributed active metal sites while the heterogeneity of Ni components upon H2 pretreatment degraded catalytic activity of metal sites considerably. Pretreatment under CO atmosphere resulted in the formation of carbon encapsulated metal species thus causing catalyst deactivation severely. Inefficient reduction under CH4 activation and the presence of a great amount of carbonaceous species, disfavor the production of synthesis gas during the dry reforming.

บรรณานุกรม :
Liu, Dapeng , Wang, Yifan , Shi, Daming , Jia, Xinli , Wang, Xin , Borgna, Armando , Lau, Raymond , Yang, Yanhui . (2555). Methane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst : influence of pretreatment gas atmospheres.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Liu, Dapeng , Wang, Yifan , Shi, Daming , Jia, Xinli , Wang, Xin , Borgna, Armando , Lau, Raymond , Yang, Yanhui . 2555. "Methane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst : influence of pretreatment gas atmospheres".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Liu, Dapeng , Wang, Yifan , Shi, Daming , Jia, Xinli , Wang, Xin , Borgna, Armando , Lau, Raymond , Yang, Yanhui . "Methane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst : influence of pretreatment gas atmospheres."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Liu, Dapeng , Wang, Yifan , Shi, Daming , Jia, Xinli , Wang, Xin , Borgna, Armando , Lau, Raymond , Yang, Yanhui . Methane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst : influence of pretreatment gas atmospheres. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.