TY - JOUR
T1 - Study on the effect of metal sulfates on the reactivity of activated aluminum composites
AU - Yang, Guang
AU - Huo, Zheng
AU - Xin, Kai
AU - Cui, Yuanlu
AU - Xu, Guoxin
AU - Yang, Rongjie
AU - Zhang, Wenchao
N1 - Publisher Copyright:
© 2025
PY - 2025/6/16
Y1 - 2025/6/16
N2 - In this paper, aluminum composites with metal sulfates (sodium sulfate, iron sulfate, copper sulfate) and bismuth are prepared via ball milling to investigate the role of sulfates in influencing hydrolysis performance. Characterization is performed by scanning electron microscopy (SEM) and X-ray diffraction (XRD) to systematically investigate the hydrogen generation properties of the composites. Al–Bi–Na2SO4 exhibits excellent hydrolysis performance, with low activation energy, low corrosion potential, and high corrosion current density, achieving a maximum hydrogen generation rate of 46.7 mL/s·g. Furthermore, Al–Bi–Fe2(SO4)3 enhances activity by altering the microstructure and increasing the specific surface area. Although its hydrogen generation rate is moderate, it exhibits a high hydrogen conversion yield of 97.0 %. In contrast, Al–Bi–CuSO4 inhibits the hydrolysis reaction. Analysis of the hydrolysate reveals that flocculent precipitates form on the surface after the reaction begins, preventing further progress of the reaction.
AB - In this paper, aluminum composites with metal sulfates (sodium sulfate, iron sulfate, copper sulfate) and bismuth are prepared via ball milling to investigate the role of sulfates in influencing hydrolysis performance. Characterization is performed by scanning electron microscopy (SEM) and X-ray diffraction (XRD) to systematically investigate the hydrogen generation properties of the composites. Al–Bi–Na2SO4 exhibits excellent hydrolysis performance, with low activation energy, low corrosion potential, and high corrosion current density, achieving a maximum hydrogen generation rate of 46.7 mL/s·g. Furthermore, Al–Bi–Fe2(SO4)3 enhances activity by altering the microstructure and increasing the specific surface area. Although its hydrogen generation rate is moderate, it exhibits a high hydrogen conversion yield of 97.0 %. In contrast, Al–Bi–CuSO4 inhibits the hydrolysis reaction. Analysis of the hydrolysate reveals that flocculent precipitates form on the surface after the reaction begins, preventing further progress of the reaction.
KW - Aluminum
KW - Hydrolysate
KW - Hydrolysis properties
KW - Metal sulfate
KW - Reaction mechanism
UR - http://www.scopus.com/inward/record.url?scp=105005073886&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2025.05.058
DO - 10.1016/j.ijhydene.2025.05.058
M3 - Article
AN - SCOPUS:105005073886
SN - 0360-3199
VL - 138
SP - 296
EP - 306
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
ER -