Open AccessStudy on waste heat measurement and composition change of Pd conductor after laser stimulation in H2 gas-loading system
Author(s) -
Bingjun Shen,
Huiru Yang,
Xingye Wang,
Lihong Jin,
Jian Ming Tian
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/772/1/012038
Subject(s) - hydrogen , hydride , laser , materials science , palladium , analytical chemistry (journal) , conductor , gas composition , scanning electron microscope , atmospheric temperature range , waste heat , chemistry , optics , composite material , thermodynamics , heat exchanger , environmental chemistry , organic chemistry , catalysis , physics
This study mainly involves that palladium hydride with different gas-loading ratio is stimulated by YAG frequency doubling laser (λ=532nm) in H/Pd gas-loading system to produce excess heat. The range of hydrogen loading ratio of palladium hydride is 0 to 0.8. The results show that the waste heat is produced in the experiment stimulated by laser. When the hydrogen loading ratio in Pd is 0.3±0.01, the maximum waste heat produced by the system within 1 hour is about 120.91±0.47 J. Some new elements are produced on the surface of Pd samples, including Si, Al, Ca and some others, these elements were found in local locations by scanning electron microscopy and energy spectrum analysis. This suggests that some reactions may have taken place in the experiment.