کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7160926 | 1462845 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Catalytic performance and durability of Ni/AC for HI decomposition in sulfur-iodine thermochemical cycle for hydrogen production
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کلمات کلیدی
Brunauer–Emmett–Teller methodTem - این استHI decomposition - تجزیه HIX-ray diffraction analysis - تحلیل پراش اشعه ایکسBET - شرطDurability - طول عمرCatalytic activity - فعالیت کاتالیستیNi content - محتوا نیستTransmission electron microscope - میکروسکوپ الکترونی انتقالXRD - پراش اشعه ایکسSulfur–iodine cycle - چرخه سولفور یدActivated carbon - کربن فعال
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This work reports the Ni content effect on the Ni/AC catalytic performance in the HI decomposition reaction of the sulfur-iodine (SI) thermochemical cycle for hydrogen production and the Ni/AC catalyst durability in a long-term test. Accordingly, five catalysts with the Ni content ranging from 5% to 15% were prepared by an incipient-wetness impregnation method. The activity of all catalysts was examined under the temperature range of 573-773Â K. The catalytic performance evaluation suggests that Ni content plays a significant role in the Ni dispersion, Ni particle size, and eventually the catalytic activity in HI decomposition. 12% is the optimal Ni content for Ni/AC catalysts in HI decomposition which is balanced between poor dispersion of Ni particles and increasing active center. The results of 24Â h durability test, which incorporated with BET and TEM investigations of the 12%Ni/AC catalyst before and after the reaction, indicate that establishing a better Ni particle dispersion pattern and improving the stability of Ni particles on the support should be considered in the future.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 117, 1 June 2016, Pages 520-527
Journal: Energy Conversion and Management - Volume 117, 1 June 2016, Pages 520-527
نویسندگان
Guangshi Fu, Yong He, Yanwei Zhang, Yanqun Zhu, Zhihua Wang, Kefa Cen,