دورية أكاديمية
أعرض في EDS

One-pot synthesis of N-doped petroleum coke-based microporous carbon for high-performance CO 2 adsorption and supercapacitors.

التفاصيل البيبلوغرافية
العنوان: One-pot synthesis of N-doped petroleum coke-based microporous carbon for high-performance CO 2 adsorption and supercapacitors.
المؤلفون: Zhu W; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China., Wang Y; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China., Yao F; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China., Wang X; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China., Zheng H; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China., Ye G; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China., Cheng H; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China., Wu J; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), Guangzhou 510006, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, South China University of Technology, Guangzhou 510006, China., Huang H; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), Guangzhou 510006, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, South China University of Technology, Guangzhou 510006, China. Electronic address: huanghm@scut.edu.cn., Ye D; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), Guangzhou 510006, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, South China University of Technology, Guangzhou 510006, China.
المصدر: Journal of environmental sciences (China) [J Environ Sci (China)] 2024 May; Vol. 139, pp. 93-104. Date of Electronic Publication: 2023 Feb 16.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: IOS Press Country of Publication: Netherlands NLM ID: 100967627 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1001-0742 (Print) Linking ISSN: 10010742 NLM ISO Abbreviation: J Environ Sci (China) Subsets: MEDLINE
أسماء مطبوعة: Publication: Amsterdam : IOS Press
Original Publication: Beijing : Editorial Dept. of Journal of Environmental Sciences (China), 1989-
مواضيع طبية MeSH: Carbon*/chemistry , Coke*, Carbon Dioxide/chemistry ; Adsorption ; Porosity
مستخلص: Waste resource utilization of petroleum coke is crucial for achieving global carbon emission reduction. Herein, a series of N-doped microporous carbons were fabricated from petroleum coke using a one-pot synthesis method. The as-prepared samples had a large specific surface area (up to 2512 m 2 /g), a moderate-high N content (up to 4.82 at.%), and high population (55%) of ultra-micropores (<0.7 nm). Regulating the N content and ultra-microporosity led to efficient CO 2 adsorption and separation. At ambient pressure, the optimal N-doped petroleum coke-based microporous carbon exhibited the highest CO 2 uptake of 4.25 mmol/g at 25°C and 6.57 mmol/g at 0°C. These values are comparable or even better than those of numerous previously reported adsorbents prepared by multistep synthesis, primarily due to the existence of ultra-micropores. The sample exhibited excellent CO 2 /N 2 selectivity at 25°C owing to the abundant basic pyridinic and pyrrolic N species; and showed superior CO 2 adsorption-desorption cycling performance, which was maintained at 97% after 10 cycles at 25°C. Moreover, petroleum coke-based microporous carbon, with a considerably high specific surface area and hierarchical pore structure, exhibited excellent electrochemical performance over the N-doped sample, maintaining a favorable specific capacitance of 233.25 F/g at 0.5 A/g in 6 mol/L KOH aqueous electrolyte. This study provides insight into the influence of N-doping on the porous properties of petroleum coke-based carbon. Furthermore, the as-prepared carbons were found to be promising adsorbents for CO 2 adsorption, CO 2 /N 2 separation and electrochemical application.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023. Published by Elsevier B.V.)
فهرسة مساهمة: Keywords: CO(2) adsorption; CO(2)/N(2) selectivity; Electrochemical performance; N-doped microporous carbon; One-pot synthesis
المشرفين على المادة: 7440-44-0 (Carbon)
142M471B3J (Carbon Dioxide)
0 (Coke)
تواريخ الأحداث: Date Created: 20231217 Date Completed: 20231219 Latest Revision: 20231219
رمز التحديث: 20231219
DOI: 10.1016/j.jes.2023.02.008
PMID: 38105081
قاعدة البيانات: MEDLINE
الوصف
تدمد:1001-0742
DOI:10.1016/j.jes.2023.02.008