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Li Q, Peng W, Sun Y, Cai C, Tang F, Liu Y, Hu Q, Zhou Z, Li X, Nie S. A super-hydrophilic graphite directly from lignin enabled by a room-temperature cascade catalytic carbonization. BIORESOURCE TECHNOLOGY 2024; 402:130802. [PMID: 38718902 DOI: 10.1016/j.biortech.2024.130802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/26/2024] [Accepted: 05/05/2024] [Indexed: 05/27/2024]
Abstract
A cost-effective, and low-energy room-temperature cascade catalytic carbonization strategy is demonstrated for converting lignin into graphite with a high yield of 87 %, a high surface potential of -37 eV and super-hydrophilicity. This super-hydrophilic feature endows the lignin-derived graphite to be dispersed in a variety of polar solvents, which is important for its future applications. Encapsulating of liquid metals with the graphite for electrical circuit patterning on flexible substrates is also advocated. These written patterns show superb conductivity of 4.9 × 106 S/m, offering good performance stability and reliability while being repeatedly stretched, folded, twisted, and bent. This will offer new designs for flexible electronic devices, sensors, and biomedical devices.
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Affiliation(s)
- Qiuxian Li
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Wenxuan Peng
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Yue Sun
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Chenchen Cai
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Fangyuan Tang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Yongfei Liu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Qingdi Hu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Zheng Zhou
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Xusheng Li
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China.
| | - Shuangxi Nie
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
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Sun Z, Yao D, Guo H, Zhu H, Hua W, Yuan Q, Zhang L, Fan Q, Yi B. Catalytic mechanism of N-containing biochar on volatile-biochar interaction for the same origin pyrolysis. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 336:117710. [PMID: 36921471 DOI: 10.1016/j.jenvman.2023.117710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/31/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Nitrogen, as a common element, is widely present in biomass. The effects of nitrogenous substances on the same origin pyrolysis of biomass and the consequences of N-containing biochar on the catalytic process of volatiles are important for further analyzing the pyrolysis mechanism of biomass. In this research, N-containing biochar was prepared under different conditions, and the interaction between N-containing biochar and biomass pyrolysis volatiles at 400-700 °C was studied. The results show that N-containing biochar can simultaneously participate in reactions as adsorbents, catalysts, and reactants. Its catalytic effect is obviously different for various N configurations. Pyridinic N and pyrrolic N can promote the cracking of lignin into methoxy phenol compounds and promote the further cracking of 5-hydroxymethylfurfural. Graphitic N and oxidized N can promote the further decomposition of phenol and the conversion of D-xylose into small-molecule ketones. In addition, oxidized N can also inhibit the cracking of lignin to produce guaiacol. In the long-term interaction, the highly active pyridinic N tends to convert to a more stable graphitic N.
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Affiliation(s)
- Zhengshuai Sun
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan, 430070, PR China
| | - Dingding Yao
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan, 430070, PR China; Key Laboratory of Smart Farming for Agricultural Animals, Wuhan, 430070, PR China
| | - Huang Guo
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan, 430070, PR China
| | - Haodong Zhu
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan, 430070, PR China
| | - Wenbin Hua
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan, 430070, PR China
| | - Qiaoxia Yuan
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan, 430070, PR China; Key Laboratory of Smart Farming for Agricultural Animals, Wuhan, 430070, PR China
| | - Liqi Zhang
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, 430074, Hubei Province, PR China
| | - Qizhou Fan
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan, 430070, PR China; Key Laboratory of Smart Farming for Agricultural Animals, Wuhan, 430070, PR China
| | - Baojun Yi
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan, 430070, PR China; Key Laboratory of Smart Farming for Agricultural Animals, Wuhan, 430070, PR China.
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Zhou L, You X, Wang L, Qi S, Wang R, Uraki Y, Zhang H. Fabrication of Graphitized Carbon Fibers from Fusible Lignin and Their Application in Supercapacitors. Polymers (Basel) 2023; 15:1947. [PMID: 37112094 PMCID: PMC10142849 DOI: 10.3390/polym15081947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/09/2023] [Accepted: 04/16/2023] [Indexed: 04/29/2023] Open
Abstract
Lignin-based carbon fibers (LCFs) with graphitized structures decorated on their surfaces were successfully prepared using the simultaneous catalyst loading and chemical stabilization of melt-spun lignin fibers, followed by quick carbonization functionalized as catalytic graphitization. This technique not only enables surficial graphitized LCF preparation at a relatively low temperature of 1200 °C but also avoids additional treatments used in conventional carbon fiber production. The LCFs were then used as electrode materials in a supercapacitor assembly. Electrochemical measurements confirmed that LCF-0.4, a sample with a relatively low specific surface area of 89.9 m2 g-1, exhibited the best electrochemical properties. The supercapacitor with LCF-0.4 had a specific capacitance of 10.7 F g-1 at 0.5 A g-1, a power density of 869.5 W kg-1, an energy density of 15.7 Wh kg-1, and a capacitance retention of 100% after 1500 cycles, even without activation.
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Affiliation(s)
- Linfei Zhou
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (L.Z.)
| | - Xiangyu You
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (L.Z.)
| | - Lingjie Wang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (L.Z.)
| | - Shijie Qi
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (L.Z.)
| | - Ruichen Wang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (L.Z.)
| | - Yasumitsu Uraki
- Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Huijie Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (L.Z.)
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