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The effect of pyrolysis temperature on the N conversion of biochar derived from the residue of Chlorella vulgaris after lipid extraction

文献类型：期刊论文

作者Yang, Gaixiu1,2; Zheng, Xuhong1,2; Wang, Kexin2; Sun, Yongming1,2; Xi, Yuebin4; Dan, Zeng3; Chen, Liumeng2,5
刊名JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
出版日期2023
卷号169页码:8
关键词Pyrolysis Nitrogen conversion Temperature Biomass based carbon materials Oxygen reduction reaction
ISSN号0165-2370
DOI10.1016/j.jaap.2022.105810
通讯作者Dan, Zeng(yongzhong2008@163.com) ; Chen, Liumeng(Chenlm@ms.giec.ac.cn)
英文摘要The application of biomass-based carbon materials in catalyzing oxygen reduction reactions has gained a renewed momentum due to their abundant heteroatoms and inherent structures. In this study, the effect of pyrolysis temperature on the nitrogen conversion of nitrogen-enriched biomass waste-microalgae residue carbon catalysts, and their application in microbial fuel cells, were studied. Temperature exhibits a significant impact on the effective nitrogen functional groups, playing a vital role in the oxygen reduction reaction process. Results revealed that an interconversion may occur among the nitrogen functionalities, where Pyrrolic-N, which is the dominant N formed at 700 degrees C, was converted to Pyridinic-N as the temperature increased to 800 degrees C. Graphitic-N has the best thermal stability; thus, it occupies the highest ratio at 900 degrees C. In addition, the increment in temperature resulted in the loss of nitrogen. The biochar prepared at 800. exhibited the most outstanding oxygen reduction reaction activity (0.8444 V vs. RHE), due to its relatively high nitrogen content (5.75 at%), more active nitrogen forms (Pyridinic-N and Graphitic-N) and appropriate pore structure. The maximum power density of a microbial fuel cell assembled with MRC-800 as cathode catalyst was 442.5 mW m(-2). This research not only presents a fundamental study on the nitrogen conversion of biochar, but also provides a promising metal-free electrode catalyst for microbial fuel cells.
WOS关键词OXYGEN REDUCTION REACTION ; DOPED CARBON MATERIALS ; MICROBIAL FUEL-CELLS ; GRAPHENE ; CATALYSTS
资助项目National Natural Science Foundation of China[52176214] ; National Natural Science Foundation of China[52160026] ; Academic development support project for young doctors of Tibet University[zdbs202211] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA 21050400] ; Shenzhen Science and Technology Program[JCYJ20200109150210400] ; key research and development plan project of the Department of science and technology of the Tibet Autonomous Region[XZ202101ZY0010G] ; Youth Innovation Promotion Association CAS[2020345] ; CAS Key Laboratory of Renewable Energy[E129kf0301]
WOS研究方向Chemistry ; Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000978966600001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Academic development support project for young doctors of Tibet University ; Strategic Priority Research Program of Chinese Academy of Sciences ; Shenzhen Science and Technology Program ; key research and development plan project of the Department of science and technology of the Tibet Autonomous Region ; Youth Innovation Promotion Association CAS ; CAS Key Laboratory of Renewable Energy
源URL[http://ir.giec.ac.cn/handle/344007/38834]  
专题中国科学院广州能源研究所
通讯作者Dan, Zeng; Chen, Liumeng
作者单位1.Univ Sci & Technol China, Sch Energy Sci & Engn, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
3.Tibet Univ, Sch Sci, 10 Zangda East Rd, Lhasa 850000, Peoples R China
4.Qilu Univ Technol, Shandong Acad Sci, Minist Educ, State Key Lab Biobased Mat & Green Papermaking,Key, Jinan 250353, Peoples R China
5.Jiangxi Acad Agr Sci, Inst Agr Appl Microbiol, Nanchang 330200, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Gaixiu,Zheng, Xuhong,Wang, Kexin,et al. The effect of pyrolysis temperature on the N conversion of biochar derived from the residue of Chlorella vulgaris after lipid extraction[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2023,169:8.
APA Yang, Gaixiu.,Zheng, Xuhong.,Wang, Kexin.,Sun, Yongming.,Xi, Yuebin.,...&Chen, Liumeng.(2023).The effect of pyrolysis temperature on the N conversion of biochar derived from the residue of Chlorella vulgaris after lipid extraction.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,169,8.
MLA Yang, Gaixiu,et al."The effect of pyrolysis temperature on the N conversion of biochar derived from the residue of Chlorella vulgaris after lipid extraction".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 169(2023):8.

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来源：广州能源研究所

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