Dresden 2026 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 3: French-German Session: Membranes and Porous Materials I
CPP 3.4: Talk
Monday, March 9, 2026, 10:30–10:45, ZEU/LICH
Scalable and Tunable Carbon Nanomembranes for Selective Molecular Transport — •Zhen Yao1, Jan Biedinger1, Martin Wortmann1, Nikolaus Meyerbröker2, Yang Yang1, Andreas Hütten1, Günter Reiss1, and Armin Gölzhäuser1 — 1Bielefeld University, Bielefeld, Germany — 2bCNM Technologies GmbH, Bielefeld, Germany
Carbon nanomembranes (CNMs), molecularly thin two-dimensional materials with intrinsic sub-nanometer pores, provide a versatile platform for nanofluidics. Their ultrathin structure enables fast molecular flux, while surface chemistry and pore architecture can be tailored for selective transport. We present a scalable synthesis route based on electron-induced crosslinking of spin-coated poly(4-vinylbiphenyl) films, combined with atomic layer deposition (ALD) for pore and surface functionalization. This strategy enables precise tuning of pore dimensions and hydrophilicity, yielding CNMs with water vapor permeance as high as 1.9× 10−5 mol s−1 m−2 Pa−1 and H2O/N2 selectivity above 10000, outperforming state-of-the-art polymer and graphene oxide membranes. These results establish CNMs as promising candidates for energy-efficient dehumidification and gas separation. Together, these studies demonstrate how scalable fabrication and nanoscale interface engineering translate into tunable nanofluidic transport, highlighting CNMs as a versatile materials platform for separations, sensing, and controlled molecular flow.
Keywords: Carbon nanomembrane; Permeation; Atomic layer deposition; Membrane functionalization; Selectivity