Ni/Ce1−xMx catalyst generated from metallo-organic network for autothermal reforming of diesel surrogate
Authors: Lei Liu, Liang Hong
Abstract:
This work investigated the production of hydrogen from reforming a diesel surrogate by using doped ceria-supported Ni catalysts. The catalysts were synthesized from a metallo-organic network (MON) comprising metal ions of interest. Pyrolyzing the MON and subsequent calcining the oxide mixture produced from the pyrolysis gave rise to a composite of a doped ceria [denoted by Ce1−(x+y)LaxGdy, x + y ≤ 0.2] and NiO with a substantial degree of mixing. The structural characterizations (XRD and TPR) revealed a minor doping level of La3+ in the supported Ni0 domains, which was formed through an interfacial oxide phase containing both metal ions. A catalyst, Ni/Ce1−(x+y)LaxGdy, was generated from a respective composite through in situ reducing of NiO in the system of autothermal reforming of a diesel surrogate. The fuel comprised n-dodecane, 10 wt% naphthalene and 100 ppm sulfur (from thiophene). Amid the various catalysts investigated, Ni/Ce0.9La0.1 is most effective in fuel conversion, hydrogen yield and stability against coking and sulfur poisoning. They are superior over the corresponding outcomes of the impregnation catalyst counterpart. This large enhancement is attributed to the unique pyrolyzing course of MON precursor, leading to highly dispersed La3+-doped Ni0 nano catalytic sites on the Ce0.9La0.1 support ultimately.
Keywords:
Ceria
Doping
Supported-Ni catalyst
Autothermal reforming
Hydrogen
Published in: Applied catalysis A: General (Volume 459, Pages 1-130, 24 May 2013)
Publisher: Elsevier
ISSN Information: 0926-860X
Ni/Ce1−xMx catalyst generated from metallo-organic network for autothermal reforming of diesel surrogate
- Vòng Sơ Khảo Cuộc Thi Đại Sứ Văn Hóa Đọc Năm 2024
- Hoạt động chào mừng "Ngày sách Việt Nam 21/4/2024"
- Ngày hội văn hóa đọc lần V
- Cuộc Thi Ảnh “Khoảnh Khắc VNUHCM Libraries”
- Ngày hội văn hóa đọc lần II
- Ngày hội văn hóa đọc lần IV
- Ngày hội văn hóa đọc lần III
- Tiếp GS Omer Mert Denizci, Trường ĐH Marmara Thổ Nhĩ Kỳ
- Tiếp Cô Claudia Tarzariol Từ The University Of Trento, Italy (Unitrento)
- Tiến sĩ kiều bào Mỹ tặng sách trị giá 150.000 USD cho sinh viên bách khoa
- Khảo sát ý kiến bạn đọc
-
Trực tuyến:13
-
Hôm nay:1037
-
Tuần này:8436
-
Tuần trước:40192
-
Tháng trước:41229
-
Tất cả:4030332