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A solid-state compact potentiometric hydrogen gas sensor was developed using CH3COONH4-doped chitosan as polymer electrolyte. The 40 wt% CH3COONH4-doped chitosan was used as the electrolyte in the sensor. The X-ray diffraction and the scanning electron microscope results showed that the nano-sized platinum working electrode and silver reference electrode were deposited on the respective side of polymer...
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