二次炭化温度对竹炭导电性能及结构的影响

doi:10.11896/cldb.19120221

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Abstract Bamboo charcoal has certain electrical conductivity and the potential to be applied in the field of electrical materials. In order to improve the electrical conductivity of bamboo charcoal, this paper used insulating bamboo charcoal as the raw material for recarbonization.The physical and chemical properties and structure of bamboo charcoal after different temperatures recarbonization were studied.Elemental analyzer, calorimeter, specific surface area and porosity analyzer, infrared spectrometer, Raman spectrometer, X-ray diffractometer, scanning electron microscope and transmission electron microscope were used to measure the basic physical and chemical properties and microstructure of bamboo charcoal.The results showed that as the recarbonization temperature increased, the specific surface area of bamboo charcoal increased first and then decreased within the range of 700—1 500 ℃. The C content increased from 82.45% to 96.87%, the fixed carbon content increased from 81.22% to 96.3%, and the calorific value from 31.385 MJ/kg to 34.904 MJ/kg, the conductivity increased from 10^-8 S/cm to 92.94 S/cm. The recarbonization reduced the polarity of bamboo charcoal and resulted in the formation of many macroporous structures on the fiber cap and cell wall. This feature of bamboo charcoal can be advantage for bamboo charcoal to be used as a reinforcing phase for composite materials. After the recarbonization, the bamboo charcoal formed curved graphite edges, and the degree of graphitization gradually increased with the increase of temperature. The crystallite size corresponding to the (002) peak of BC1500 was 0.334 nm, which was close to the graphite stripe spacing of 0.34 nm.The recarbonization significantly enhanced the conductivity of bamboo charcoal, which was the result of increased carbon content, further shrinkage of cell walls and fiber caps, and formation of curved graphite edges.Recarbonization provides a simple and efficient method for the preparation of high-quality charcoal.

Key words： bamboo charcoal electrical conductivity graphitization recarbonization

Published: 10 May 2021

CLC number:

TB321

Fund:National Key Research and Development Plan for the 13th Five-Year Plan (2018YFF0214501), Key Reasearch and Development Fund Project of Zhejiang(2018C02008).

About author:: Wenzheng Jiang, postgraduate of Zhejiang Agriculture and Forestry University, mainly engaged in the research of biochar and its composite materials.
Wenbiao Zhang, professor, doctor, doctoral tutor. Mainly engaged in bamboo industrialization utilization, biochar and other aspects of teaching and research. The research and standard formulation of bamboo charcoal have won the first prize of Zhejiang Province Science and Technology Progress Award, the second prize of National Science and Technology Progress Award, and the Zhejiang Province Standard Innovation Contribution Award.

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	JIANG Wenzheng
	ZHANG Weigang
	ZI Xuan
	LIU Xianmiao
	ZHANG Wenbiao
	LI Wenzhu

Cite this article:

JIANG Wenzheng,ZHANG Weigang,ZI Xuan, et al. Effect of Recarbonization Temperature on Conductive Properties and Structure of Bamboo Charcoal[J]. Materials Reports, 2021, 35(8): 8023-8027.

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http://www.mater-rep.com/EN/10.11896/cldb.19120221 OR http://www.mater-rep.com/EN/Y2021/V35/I8/8023

1 Zhang W B, Ye L M, Zhang H, et al. Journal of Bamboo Research,2001(2),49(in Chinese).
张文标,叶良明,张宏,等.竹子研究汇刊,2001(2),49.
2 Liu W F, Zhao L, Cui X, et al. Journal of Bamboo Research,2019,38(2),47(in Chinese).
刘文芳,赵磊,崔箫,等.竹子学报,2019,38(2),47.
3 Zhang W B, Li W Z,Yan G Q. Journal of Forestry Engineering,2016,1(2),59(in Chinese).
张文标,李文珠,闫国祺.林业工程学报,2016,1(2),59.
4 Liang G Y, Zhang Y D, Sun Y, et al. Journal of Forestry Engineering,2019(1),81(in Chinese).
梁广元,张一丁,孙毅,等.林业工程学报,2019(1),81.
5 Liao P, Malik Ismael Z, Zhang W, et al. Chemical Engineering Journal,2012,195-196,339.
6 Liao P, Zhan Z, Dai J, et al. Chemical Engineering Journal,2013,228,496.
7 Wen Y, Song J, Chen J, et al. BioResources,2017,12(1),1288.
8 Li S, Huang A, Chen Y J, et al. Composites Part B: Engineering,2018,153,277.
9 Li S, Li X, Chen C, et al. Composites Science and Technology,2016,132,31.
10 Zhao L, Wang S S, Jiang W Z, et al. China Plastics,2019,33(11),6(in Chinese).
赵磊,王珊珊,江文正,等.中国塑料,2019,33(11),6.
11 Guo Z H, Zhang Y, Li W Z, et al. Functional Materials,2019,50(7),7210.
郭子豪,张雨,李文珠,等.功能材料,2019,50(7),7210.
12 Zhang W B, Xu C X, Yan G Q, et al. Journal of Zhejiang A & F University,2014,31(4),639(in Chinese).
张文标,徐冲霄,闫国祺,等.浙江农林大学学报,2014,31(4),639.
13 Fu Q H, Weng Y M, Zhang W B, et al. Journal of Zhejiang Forestry Science and Technology,2003 (4),16(in Chinese).
傅秋华,翁益明,张文标,等.浙江林业科技,2003(4),16.
14 Kwon J H, Park S B, Ayrilmis N, et al. Composites Part B: Engineering,2013,46,102.
15 Chen C, Sun K, Wang A, et al. BioResources,2018,13(2),3165.
16 Major I, Pin J M, Behazin E, et al. Green Chemistry,2018,20(10),2269.
17 Ma Z, Sun Q, Ye J, et al. Journal of Analytical and Applied Pyrolysis,2016,117,116.
18 Zhang Y, Ma Z, Zhang Q, et al. BioResources,2017,12(3),4652.
19 Zhang W B, Hua Y K, Ye L M. Journal of Nanjing Forestry University (Natureal Sciences Edition),2002(4),47(in Chinese).
张文标,华毓坤,叶良明.南京林业大学学报(自然科学版),2002(4),47.
20 Zhang Q, Khan M U, Lin X, et al. Composites Part B: Engineering,2019,175,107151.
21 Gabhi R S, Kirk D W, Jia C Q. Carbon,2017,116,435.
22 Diehl B G, Brown N R, Frantz C W, et al. Carbon,2013,60,531.
23 Ma Z, Yang Y, Ma Q, et al. Journal of Analytical and Applied Pyrolysis,2017,127,350.
24 Li S, Li D. Materials Letters,2014,137,409.
25 Gutiérrez-Pardo A, Ramírez-Rico J, Cabezas-Rodríguez R, et al. Journal of Power Sources,2015,278,18.
26 Chen C,Wang A,Sun K,et al. Chemistry and Industry of Forest Products,2019,39(3),94(in Chinese).
陈超,王傲,孙康,等.林产化学与工业,2019,39(3),94.
27 Xiao G, Xiao R, Jin B, et al. Journal of Biobased Materials and Bioenergy,2010,4(4),426.