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Efficient Conversion of NO2 to NO over Mo2C/AC by Controlling Carbonization Time Научная публикация

Журнал Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210
Вых. Данные Год: 2024, Том: 65, Номер: 3, Страницы: 271-279 Страниц : 9 DOI: 10.1134/s0023158423601067
Авторы Mu Shifang 1,2 , Wang Yan 1 , Wang Hongliang 1 , Weng Yujing 2,3 , Sun Qi 2,3 , Zhang Yulong 2,3
Организации
1 College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan, 454003 PR China
2 Henan Key Laboratory of Coal Green Conversion, Jiaozuo Henan, 454003 PR China
3 College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo Henan, 454003 PR China
Реферат: Mo2C/AC-x converters were prepared using nitric acid pretreated activated carbon (AC) as a carrier, with x representing the carbonization time. The performance of the converter in converting NO2 to NO was evaluated in a fixed bed reactor. The Mo2C/AC-x converters were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), N2 physisorption and desorption, H2 programmed temperature reduction (H2-TPR) and NO2 temperature-programmed desorption–mass spectrometry (NO2 TPD-MS). The NO2 to NO conversion rate decreases in the following order: Mo2C/AC-4 > Mo2C/AC-2 > Mo2C/AC-6 > Mo2C/AC-0.5. Short carbonization times, like 0.5 h, led to incomplete carbonization of MoO2 to β-Mo2C. Conversely, long carbonization times, like 6 h, resulted in the formation of carbon deposits that can block pores or cover active sites, leading to decreased catalytic performance. Mo2C/AC-4 has the highest specific surface area and pore volume. The NO2 conversion rate of Mo2C/AC-4 reached 98.9% at 150°C, demonstrating direct efficient conversion of NO2 to NO at a lower temperature.
Библиографическая ссылка: Mu S. , Wang Y. , Wang H. , Weng Y. , Sun Q. , Zhang Y.
Efficient Conversion of NO2 to NO over Mo2C/AC by Controlling Carbonization Time
Kinetics and Catalysis. 2024. V.65. N3. P.271-279. DOI: 10.1134/s0023158423601067 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 18 окт. 2023 г.
Принята к публикации: 12 февр. 2024 г.
Опубликована online: 15 авг. 2024 г.
Идентификаторы БД:
Web of science: WOS:001292130800008
Scopus: 2-s2.0-85201372248
РИНЦ: 68611525
Chemical Abstracts: 2024:1811872
Chemical Abstracts (print): 188:71884
OpenAlex: W4401606979
Альметрики: