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Technical Name Solar-driven H2O2 single compartment fuel cell.
Project Operator National Cheng Kung University
Project Host 王鴻博
Summary
Photoelectrocatalysis (PEC) is a method combining solar energy, photocatalysis and electrochemistry for direct conversion of solar energy into electricity.H2O2 (60%) has an energy density of 2.1 MJ/kg, being similar to H2. It is worth noting that the photocatalytic water splitting to H2(g) and H2O2(aq) through a two-electron reaction is more kinetically feasible. A muti-fuctional H2O2 photoelectrocatalytic fuel cell (PFC) was thus under development. Through water splitting process, H2O-to-H2O2, makes it possible for H2O2 fed to a novel fuel cell for electricity. In the PFC process, photons are absorbed by the photoanode to generate electrons and holes, and electrons flow through an external circuit for electricity and the holes can oxidize the fed organic pollutants. The solar-driven H2O2 PFC may give a net potential gain of 1.23 V theoretically. Proceeding in the way,  a single-compartment PFC fed with H2O-to-H2O2 from water or organic wastewater was developed and advanced.
Scientific Breakthrough
In the photoelectrocatalytic fuel cell process, photons are absorbed by the photoanode to generate electrons and holes, and electrons flow through an external circuit for electricity and the holes can oxidize the fed organic pollutants. The solar-driven H2O2 fuel cell may give a net potential gain of 1.07 V theoretically. Proceeding in the way, a single-compartment fuel cell fed with H2O-to-H2O2 from water or organic wastewater was developed and advanced. The novel fuel cell can also be engineering scaled up to provide electricity for a family and/or community.
Industrial Applicability
The solar-driven H2O2 fuel cell can be applied in various field, and its potential includes:
(1)The use of clean and inexhaustible solar energy drives to form a single compartment H2O2 fuel cell.
(2)The easy operation, low-cost reactor providing clean water would have a promising application and high business competitiveness.
(3)Solar-driven H2O2 fuel cell can provide small-scale or community-based electric power generation.
Keyword Photocatalysis water splitting clean water H2O2 fuel cell photoelectrode quantum dot nanoreactor solar-driven wastewater treatment
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