Regulation of the hydrolysis reaction performance of aluminum composites by PTFE and investigation of the hydrolysis mechanism

摘要

Improving the hydrolysis reaction properties of aluminum to prepare renewable and environmentally friendly hydrogen is of great interest for the application of mobile hydrogen sources. Here, a series of poly(tetrafluoroethylene)-based activated aluminum composites were prepared, and their microstructures and hydrogen generation properties were investigated in detail.The results show that PTFE can effectively increase the hydrolysis reaction rate of activated aluminum composites. The sample Al-8Bi-2PTFE exhibits the fastest hydrolysis reaction rate. Through observing the microscopic morphology of the hydrolyzed products of Al-8Bi-2PTFE at different reaction times, the catalytic role of PTFE in the hydrolysis reaction of the composite was proved. PTFE can accelerate the rupture of the particles of Al-8Bi-2PTFE during the hydrolysis reaction, thereby accelerating the hydrolysis reaction rate of aluminum.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.