Size?Selective Photoelectrochemical Reactions in Microporous Environments: Clark Probe Investigation of Pt@g?C <sub>3</sub> N <sub>4</sub> Embedded into Intrinsically Microporous Polymer (PIM?1)
نویسندگان
چکیده
Graphitic carbon nitride (g-C3N4) with photo-attached platinum (Pt@g-C3N4) is known to generate hydrogen under illumination in aqueous environments the presence of carbohydrate hole quenchers. Here, Pt@g-C3N4 embedded into a polymer intrinsic microporosity (PIM-1) host material molecularly rigid structure maintain active unblocked catalyst surfaces and control transport to/from photocatalyst. A Clark-type oxygen/hydrogen sensor employed PIM-1 applied as film be gas-permeable membrane. Oxygen reduction production are observed situ function light exposure quencher concentration. Significant size-selectivity favouring smaller more flexible saccharides or carbohydrate/ hydrocarbon quenchers attributed rate limiting micropore transport. Effective through Teflon membrane demonstrated. The underlying production/ photocurrent enhancing effects microporous on photochemical process revealed.
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ژورنال
عنوان ژورنال: ChemElectroChem
سال: 2021
ISSN: ['2196-0216']
DOI: https://doi.org/10.1002/celc.202100732