Abstract
Compositing stimuli-responsive polymers or microgels can provide material systems with the unique capability of being programmable under specific external signals. Herein we show that by using CO2-responsive microgels as carriers of metal nanocatalysts and stabilizers to disperse the immiscible liquid organic hydrogen carriers (LOHCs), organosilanes in water coreagents, we can achieve a programmable generation of hydrogen for safe and portable applications of hydrogen fuels. The solubility of the tertiary amine-based microgel particles in water can be switched through CO2 bubbling or vacuuming, allowing a controllable demulsification or emulsification of the LOHCs/water system. Microcompartments consisting of a porous microgel shell with nanocatalysts and organosilane droplets can be broken and created on demand, resulting in a change of the oil/water interfacial area of over 3 orders of magnitude and a hydrogen generation rate increase of about 20-fold by forming the microcompartments. In addition, it wa...
Published Version
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