Research on determination methods of trace ammonia in hydrogen for proton exchange membrane fuel cells
Year: 2025
Type: conference-paper
Abstract: Ammonia is a critical indicator in the control of hydrogen impurities for proton exchange membrane fuel cells (PEMFCs). Both international and national standards strictly limit the ammonia content in hydrogen to within 0.1 μmol/mol. This paper summarizes the analytical methods for trace ammonia in hydrogen and conducts experimental comparative analyses of Gas Chromatography with Helium Ionization Detection (GC-HID) and Cavity Ring-Down Spectroscopy (CRDS). The results show that the CRDS method has a detection limit as low as 0.3 ppb, making it an accurate and feasible scheme for detecting trace ammonia in hydrogen used for fuel cell vehicles.
Authors: Kunqing Song, Lin Li, Xiuzhen Li, Wenbin Yan, Zhenyu Zhang, Nengshuai Jiang, Lei Ma
Institutions: Qilu University of Technology, Shandong Academy of Sciences
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4413287140