化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (5) : 173-176.

科学研究

低温氧等离子对炭黑VXC-72结构和性能的影响

苏薇薇, 李英琳, 徐磊

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Influence of oxygen plasma treatment on structure and performance of VXC-72 electrocatalyst

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Received		Published
2016-07-30		2018-05-20
Issue Date	Revised Date
2018-07-03	2016-07-30

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摘要

采用低温等离子技术,通过不同的氧等离子处理时间,制备得到不同的炭黑VXC-72。利用场发射扫描电镜对VXC-72研磨前后的表面形貌进行表征,结果表明研磨后的VXC-72团聚更加严重。采用物理化学吸附仪对VXC-72的比表面积和孔体积进行测量,结果发现研磨后的VXC-72比表面积降低了57.76%。然而等离子处理后,不仅VXC-72的比表面积得到一定的改善,其表面的氧含量也得到有效提升。最后利用四探针法对样品的导电性进行分析,发现氧等离子处理时间越长,电阻率越小。

Abstract

After being grinded,the functionalized VXC-72 was prepared using oxygen plasma treatment technology under different treatment time.The morphology of VXC-72 was characterized by the field emission scanning electron microscopy (SEM) and the results showed that the grinded VXC-72 had serious agglomeration.Nitrogen adsorption and desorption isotherm were measured by surface area and pore size analyzer.The results revealed that the specific surface area of grinded VXC-72 was decreased by 57.76%,while oxygen plasma treatment efficiently improved the specific surface area and the oxygen content of VXC-72.By four-point probe method,the resistivity of VXC-72 increased with the treatment time.

关键词

VXC-72 / 氧等离子 / 比表面积 / 孔体积

Key words

VXC-72 / oxygen plasma treatment / BET / pore volume

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苏薇薇, 李英琳, 徐磊. 低温氧等离子对炭黑VXC-72结构和性能的影响[J]. 化工新型材料, 2018, 46(5): 173-176 DOI:

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