Home

Citation: Xing Wei, Zhang Ming-Jie, Yan Zi-Feng. Synthesis and Activation Mechanism of Coke Based Super Activated Carbons[J]. Acta Physico-Chimica Sinica, ;2002, 18(04): 340-345. doi: 10.3866/PKU.WHXB20020411 shu

Synthesis and Activation Mechanism of Coke Based Super Activated Carbons

1.
State Key Laboratory for Heavy Oil Process,The Key Laboratory of Catalysis,CNPC,University of Petroleum,Dongying　257061

Received Date: 22 August 2001
Available Online: 15 April 2002

Coke based super activated carbons (SAC) with higher surface area were synthesized by means of KOH thermoactivation.The structure and properties of SAC samples were extensively investigated by TGDTA and N2 adsorption techniques.Simultaneously,insitu TDDTA and quick activation quenching techniques were designed to investigate the activation mechanism of SAC samples.A twostep activation mechanism,which includes radial activation at moderate temperature and transverse activation at higher temperature,respectively,was tentatively postulated.It indicated that K2O,－O－K＋ and －CO－2K＋ might be the active sites of radial activation at moderate temperature and fused K＋O－ and K＋ might be the active centers of transverse activation at higher temperature.Of special is that radial activation at moderate temperature may result in the formation of micropores and that this might be the effective way to improve the micropore distribution of SAC samples.In contrary,the transverse activation at higher temperature would lead to the formation of macropore.The formation of super activated carbons was resulted from the radial activation at moderate temperature and subsequent transverse activation at higher temperature.
- Super activated carbons;Activation mechanism;KOH;Radial activation;Transverse activation
1. [1]
  Jianjun LI , Mingjie REN , Lili ZHANG , Lingling ZENG , Huiling WANG , Xiangwu MENG . UV-assisted degradation of tetracycline hydrochloride by MnFe₂O₄@activated carbon activated persulfate. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1869-1880. doi: 10.11862/CJIC.20240187
2. [2]
  Chengpeng Liu , Yinxia Fu . Design and Practice of Ideological and Political Education for the Public Elective Course “Life Chemistry Experiment” in Universities. University Chemistry, 2024, 39(10): 242-248. doi: 10.12461/PKU.DXHX202404064
3. [3]
  .
  CCS Chemistry | 超分子活化底物为自由基促进高效选择性光催化氧化
  . CCS Chemistry, 2025, 7(10.31635/ccschem.025.202405229): -.
4. [4]
  Xinxin YU , Yongxing LIU , Xiaohong YI , Miao CHANG , Fei WANG , Peng WANG , Chongchen WANG . Photocatalytic peroxydisulfate activation for degrading organic pollutants over the zero-valent iron recovered from subway tunnels. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 864-876. doi: 10.11862/CJIC.20240438
5. [5]
  Guanghui SUI , Yanyan CHENG . Application of rice husk-based activated carbon-loaded MgO composite for symmetric supercapacitors. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 521-530. doi: 10.11862/CJIC.20240221
6. [6]
  Hui Wang , Abdelkader Labidi , Menghan Ren , Feroz Shaik , Chuanyi Wang . 微观结构调控的g-C₃N₄在光催化NO转化中的最新进展：吸附/活化位点的关键作用. Acta Physico-Chimica Sinica, 2025, 41(5): 100039-. doi: 10.1016/j.actphy.2024.100039
7. [7]
  Qiqi Li , Su Zhang , Yuting Jiang , Linna Zhu , Nannan Guo , Jing Zhang , Yutong Li , Tong Wei , Zhuangjun Fan . 前驱体机械压实制备高密度活性炭及其致密电容储能性能. Acta Physico-Chimica Sinica, 2025, 41(3): 2406009-. doi: 10.3866/PKU.WHXB202406009
8. [8]
  Xiaosong PU , Hangkai WU , Taohong LI , Huijuan LI , Shouqing LIU , Yuanbo HUANG , Xuemei LI . Adsorption performance and removal mechanism of Cd(Ⅱ) in water by magnesium modified carbon foam. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1537-1548. doi: 10.11862/CJIC.20240030
9. [9]
  Ziheng Zhuang , Xiao Xu , Kin Shing Chan . Superdrugs for Superbugs. University Chemistry, 2024, 39(9): 128-133. doi: 10.3866/PKU.DXHX202309040
10. [10]
  Heng Zhang . Determination of All Rate Constants in the Enzyme Catalyzed Reactions Based on Michaelis-Menten Mechanism. University Chemistry, 2024, 39(4): 395-400. doi: 10.3866/PKU.DXHX202310047
11. [11]
  Jiajie Li , Xiaocong Ma , Jufang Zheng , Qiang Wan , Xiaoshun Zhou , Yahao Wang . Recent Advances in In-Situ Raman Spectroscopy for Investigating Electrocatalytic Organic Reaction Mechanisms. University Chemistry, 2025, 40(4): 261-276. doi: 10.12461/PKU.DXHX202406117
12. [12]
  Yuejiao An , Wenxuan Liu , Yanfeng Zhang , Jianjun Zhang , Zhansheng Lu . Revealing Photoinduced Charge Transfer Mechanism of SnO₂/BiOBr S-Scheme Heterostructure for CO₂ Photoreduction. Acta Physico-Chimica Sinica, 2024, 40(12): 2407021-. doi: 10.3866/PKU.WHXB202407021
13. [13]
  Yingchun ZHANG , Yiwei SHI , Ruijie YANG , Xin WANG , Zhiguo SONG , Min WANG . Dual ligands manganese complexes based on benzene sulfonic acid and 2, 2′-bipyridine: Structure and catalytic properties and mechanism in Mannich reaction. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1501-1510. doi: 10.11862/CJIC.20240078
14. [14]
  Ronghao Zhao , Yifan Liang , Mengyao Shi , Rongxiu Zhu , Dongju Zhang . Investigation into the Mechanism and Migratory Aptitude of Typical Pinacol Rearrangement Reactions: A Research-Oriented Computational Chemistry Experiment. University Chemistry, 2024, 39(4): 305-313. doi: 10.3866/PKU.DXHX202309101
15. [15]
  Zhen Yao , Bing Lin , Youping Tian , Tao Li , Wenhui Zhang , Xiongwei Liu , Wude Yang . Visible-Light-Mediated One-Pot Synthesis of Secondary Amines and Mechanistic Exploration. University Chemistry, 2024, 39(5): 201-208. doi: 10.3866/PKU.DXHX202311033
16. [16]
  Yi Li , Zhaoxiang Cao , Peng Liu , Xia Wu , Dongju Zhang . Revealing the Coloration and Color Change Mechanisms of the Eriochrome Black T Indicator through Computational Chemistry and UV-Visible Absorption Spectroscopy. University Chemistry, 2025, 40(3): 132-139. doi: 10.12461/PKU.DXHX202405154
17. [17]
  Weina Wang , Lixia Feng , Fengyi Liu , Wenliang Wang . Computational Chemistry Experiments in Facilitating the Study of Organic Reaction Mechanism: A Case Study of Electrophilic Addition of HCl to Asymmetric Alkenes. University Chemistry, 2025, 40(3): 206-214. doi: 10.12461/PKU.DXHX202407022
18. [18]
  Tianlong Zhang , Rongling Zhang , Hongsheng Tang , Yan Li , Hua Li . Online Monitoring and Mechanistic Analysis of 3,5-diamino-1,2,4-triazole (DAT) Synthesis via Raman Spectroscopy: A Recommendation for a Comprehensive Instrumental Analysis Experiment. University Chemistry, 2024, 39(6): 303-311. doi: 10.3866/PKU.DXHX202312006
19. [19]
  Dongdong Yao , JunweiGu , Yi Yan , Junliang Zhang , Yaping Zheng . Teaching Phase Separation Mechanism in Polymer Blends Using Process Representation Teaching Method: A Teaching Design for Challenging Theoretical Concepts in “Polymer Structure and Properties” Course. University Chemistry, 2025, 40(4): 131-137. doi: 10.12461/PKU.DXHX202408125
20. [20]
  Yahui HAN , Jinjin ZHAO , Ning REN , Jianjun ZHANG . Synthesis, crystal structure, thermal decomposition mechanism, and fluorescence properties of benzoic acid and 4-hydroxy-2, 2′: 6′, 2″-terpyridine lanthanide complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 969-982. doi: 10.11862/CJIC.20240395

Get Citation

PDF

XML

Metrics

PDF Downloads(3336)
Abstract views(3278)
HTML views(16)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return