高温退火增强碳纳米管的生物电化学性能研究

doi:10.11896/cldb.24080109

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Abstract Oxidoreductase enzymes based on bioelectric catalysis are commonly used to construct bioelectronic devices, such as biofuel cells and biosensors. However, the low efficiency of electron transfer at the enzyme-electrode interface is the main bottleneck that limits the practical application of enzyme bioelectric catalytic systems. Based on this, this work selected the most widely used glucose oxidase (GOx) as the model enzyme, and carbon nanotubes (CNTs) as the electron transfer medium and enzyme immobilization carrier, to investigate the effect of high-temperature annealing on the electron transfer and catalytic activity of GOx. The effects of high-temperature annealing on the microscopic morphology, crystal structure, and graphitization degree of CNTs, as well as the structural-functional relationships between the structure and bio-electrochemical properties were studied. The results showed that annealing treatment improved the graphitization degree of CNTs, enhanced the electron transfer ability and catalyticactivity, and the interaction between the active center of GOx and the annealed CNTs was significantly improved compared to the unannealed CNTs. This study has important guiding significance for the construction of high-performance enzyme bioelectrodes based on nanocarbon materials.

Key words： carbon nanotubes high temperature annealing glucose oxidase bio-electrochemistry

Published: 25 September 2025 Online: 2025-09-11

CLC number:

O646

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	Articles by authors
	YUE Qing
	LI Wenquan
	SHENG Hongwei
	LAN Wei

Cite this article:

YUE Qing,LI Wenquan,SHENG Hongwei, et al. Bio-electrochemical Properties of Carbon Nanotubes Enhanced by High-temperature Annealing[J]. Materials Reports, 2025, 39(18): 24080109-5.

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https://www.mater-rep.com/EN/10.11896/cldb.24080109 OR https://www.mater-rep.com/EN/Y2025/V39/I18/24080109

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