Abstract
In this research, at first section, we utilize in situ liquid cell TEM to generate hydrogen nanobubbles (HNBs) within liquid cell composed quasi-2D liquid system. The electron beam of TEM serves as illumination source to probe as well as record the kinetics of HNB and simultaneously provides energy input to trigger the radiolysis assisted abstraction reaction (RAAR). According to the kinetics analysis result, the RAAR generated HNBs are enclosed within hydrogen gas supersaturated liquid which ensure the stability of HNBs. The stored hydrogen weight capacity can reach as high as 3.4 wt% at ambient condition and the loss of usable hydrogen as low as 0.1 (g/h)/kg which already fit the DOE target in 2010 and this value ideally could be 0.0072 (g/h)/kg. Current result shows HNBs could be a candidate for hydrogen storage. At second part, we use electron beam to ignite the process of mass transferring from original gold nanoparticle to precipitate on HNB surface with fine size. The reaction model proposed from radiation assisted nanoparticle synthesis is in agreement with our experiment result. Finally, the sliding of gold nanoparticles on HNB surface may attribute to the momentum transferring from incident electrons to precipitated gold nanoparticles.