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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 1: Gels, Polymers Networks and Elastomers I
CPP 1.2: Vortrag
Montag, 17. März 2025, 10:00–10:15, H34
Hybrid PNIPAM Films for Green Hydrogen Production — •Morgan P. Le Dû1, David P. Kosbahn1, Thomas Baier1, Qi Zhong2, Apostolos Vagias3, Robert Cubitt3, Narendra Chaulagain4, Karthik Shankar4, Hagen Übele5, Katharina Krischer5, and Peter Müller-Buschbaum1 — 1TUM School of Natural Sciences, Chair for Functional Materials, Garching, Germany — 2Zhejiang Sci-Tech University, Hangzhou, China — 3Institut Laue-Langevin (ILL), Grenoble, France — 4University of Alberta, Department of Electrical and Computer Engineering, Edmonton, Canada — 5TUM School of Natural Sciences, Nonequilibrium Chemical Physics, 85748 Garching, Germany
Platinum (Pt) doped carbon nitride (CN) is a promising photocatalyst under visible light for green hydrogen (H2) production. We develop this system in a thin polymer film to make it industrially scalable. The poly(N-isopropylacrylamide) (PNIPAM) hydrogel is used as a host matrix and water storage medium to facilitate homogeneous dispersion of the catalytic centers. The hybrid film's vertical distribution and inner microstructure are studied under in situ conditions with time-of-flight neutron reflectometry (ToF NR) and grazing incidence small angle neutron scattering (GISANS). The resulting H2 produced is measured by gas chromatography.
Keywords: green hydrogen; photocatalysis; water splitting; hydrogel