Studies on the synthesis of AlPO4-5 zeolite and its doping La and their application as quartz crystal microbalance humidity sensor
[1]Wang Luyu,Zhu Ye,Gao Liping,et al.Studies on the synthesis of AlPO4-5 zeolite and its doping La and their application as quartz crystal microbalance humidity sensor[J].Journal of Zhengzhou University (Engineering Science),2016,37(05):12-16.[doi:10.13705/j.issn.1671-6833.2016.05.003]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 05
Page number:
12-16
Column:
Public date:
2016-11-25
- Title:
- Studies on the synthesis of AlPO4-5 zeolite and its doping La and their application as quartz crystal microbalance humidity sensor
- Keywords:
- AIPO4-5; La-doped; QCM; humidity sensor
- CLC:
- -
- Abstract:
- Using aluminum isopropoxide, orthophosphoric acid, tetramethylguanidine and lanthanum nitrate as reaction raw materials, AIP04-5 zeolite molecular sieve was successfully prepared by one-step hydrothermal method, and it was doped with rare earth element lanthanum (LaAPO-5) to Obtain good gas-sensing performance. It can be seen from the scanning electron microscope that the obtained La-doped zeolite molecular sieve is a small spherical particle, and is packed into a fluffy cotton floc. The synthesized material is constructed as a sensitive material for a quartz crystal microbalance humidity sensor A resonant humidity sensor, compared with the undoped LaAPO4-5, the doped LaAPO-5 has a higher sensitivity in the detection of the whole humidity range, and has a better linear relationship and a shorter response time. /recovery time, where the recovery time can be as fast as 3 s.
- References:
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