N-butyl alcohol gas sensor composite material as well as preparation and use methods thereof

By using CoSnO3-In2O3 composite material, the problems of low detection sensitivity and poor selectivity of n-butanol gas in the prior art are solved, and the detection of n-butanol gases with high sensitivity, low detection limit and high selectivity are achieved.

CN119757476AActive Publication Date: 2025-04-04NORTHEASTERN UNIV CHINA
8 Cites 1 Cited by

Patent Information

Application Number
CN202510258942.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2025-04-04
Estimated Expiration
2045-03-06

AI Technical Summary

Technical Problem

In the prior art, when detecting n-butanol gas, the sensitivity is low, the selectivity is poor, and the response value is not significantly improved.

Method used

The CoSnO3-In2O3 composite material was used to prepare the CoSnO3 precursor and the In2O3 precursor were synthesized by a one-step hydrothermal method. After mixed grinding and calcining, the CoSnO3-In2O3 heterostructure composite material was prepared.

Benefits of technology

High sensitivity, low detection limit and high selectivity detection of n-butanol gas are achieved, with the lower detection limit of 20ppb and the detection range is 20ppb~400ppm, and the performance is better than the n-butanol sensors reported so far.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention belongs to the technical field of gas sensors, and particularly relates to an n-butyl alcohol gas sensor composite material and a preparation and use method thereof. In the prior art, the response effect of single In2O3 and CoSnO3 on n-butyl alcohol is not ideal. A precursor CoSn (OH) 6 is prepared from an aqueous solution of cobalt sulfate and sodium stannate, a precursor In (OH) 3 is prepared from an aqueous solution of indium nitrate through a hydrothermal reaction, the CoSn (OH) 6 and the In (OH) 3 are mixed, ground and calcined, and the CoSnO3-In2O3 composite material is obtained. A sensor prepared from the composite material has high sensitivity, good selectivity and repeatability to n-butyl alcohol at 250 DEG C, the detection limit is as low as 20 ppb, and the sensor has good practical application value.
Need to check novelty before this filing date? Find Prior Art