(61a) Electrical Energy Generation Via Reversible Chemical Doping on Transition Metal Dichalcogenide Thin Films – a Wearable H2O Voltage Generator
AIChE Annual Meeting
2018 AIChE Annual Meeting
Materials Engineering and Sciences Division
Area 8D (Inorganic Materials) Graduate Student Award Session
Monday, October 29, 2018 - 8:00am to 8:30am
Chemically modified Transitional Metal Dichalcogenide thin films enable unique power sources driven entirely by a chemical potential gradient. Electrical current (11.9 Î¼A mgâ1) and potential (525 mV) are reversibly produced by localized small molecule doping under ambient conditions. Using a variety of liquid-film interactions, we show that the nano-confinement of liquid dopants (including H2O) within this porous structure allows facile conversion of heat of adsorption to electricity. An inverse length-scaling of the maximum power as Lâ1.03 that creates specific powers as large as 30.0 kW kgâ1 highlights the potential for microscale energy generation. We demonstrate that this Asymmetric Chemical Doping (ACD) electricity induction method can be scaled using a printing/patterning technique for novel electricity generators. This allows us to develop a conformable thin film voltage generator that can be grafted onto human skin in a facile manner.
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