Suppressing Cooperative Water Condensation through Nucleation-Controlled HIPF Architectures.
- 1Department of Materials Chemistry, Adsorption and Catalysis, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100Toruń, Poland.
- 2Institute of Advanced Studies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100Toruń, Poland.
Abstract
Hydrogen-bonded ionic-pair frameworks (HIPFs) provide a versatile platform for controlling interfacial hydration through molecular organization. Here, two crystalline melamine-trimesic acid (ME-TMA) HIPFs structures with fiber-like and plate-like morphologies, denoted F-HIPF and P-HIPF, were obtained by varying the nucleation conditions. Both materials exhibit low N2-accessible surface areas of 7.5 and 2.5 m2 g-1, respectively, providing a low-porosity platform in which hydration behavior can be separated from extensive permanent-pore filling. F-HIPF shows smooth, nearly reversible water uptake, whereas P-HIPF develops pronounced high-humidity hysteresis associated with more cooperative water retention. Direct, water-vapor adsorption and desorption, calorimetry reveals distinct loading-dependent enthalpic and entropic signatures. Operando difference infrared spectroscopy further demonstrates reversible hydration and different temperature dependences of the normalized initial response. Rate-derived kinetic descriptors indicate an enthalpically favorable but entropically penalized response for F-HIPF and an almost athermal, kinetically entropy-favored response for P-HIPF. When deposited on oxidized carbon fibers, F-HIPF increases irradiation-induced evaporation relative to bare CF, showing that a developed permanent pore network is not required for the observed enhancement.
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BibTeX
@article{wisniewski2026suppressing,
title = {{Suppressing Cooperative Water Condensation through Nucleation-Controlled HIPF Architectures.}},
author = {Marek Wiśniewski},
journal = {Langmuir : the ACS journal of surfaces and colloids},
year = {2026},
month = sep,
doi = {10.1021/acs.langmuir.6c03562},
url = {https://europepmc.org/article/MED/42916833},
note = {CC BY},
}
RIS
TY - JOUR
TI - Suppressing Cooperative Water Condensation through Nucleation-Controlled HIPF Architectures.
AU - Marek Wiśniewski
PY - 2026
DA - 2026/09/01
JO - Langmuir : the ACS journal of surfaces and colloids
DO - 10.1021/acs.langmuir.6c03562
UR - https://europepmc.org/article/MED/42916833
AB - Hydrogen-bonded ionic-pair frameworks (HIPFs) provide a versatile platform for controlling interfacial hydration through molecular organization. Here, two crystalline melamine-trimesic acid (ME-TMA) HIPFs structures with fiber-like and plate-like morphologies, denoted F-HIPF and P-HIPF, were obtained by varying the nucleation conditions. Both materials exhibit low N2-accessible surface areas of 7.5 and 2.5 m2 g-1, respectively, providing a low-porosity platform in which hydration behavior can be separated from extensive permanent-pore filling. F-HIPF shows smooth, nearly reversible water uptake, whereas P-HIPF develops pronounced high-humidity hysteresis associated with more cooperative water retention. Direct, water-vapor adsorption and desorption, calorimetry reveals distinct loading-dependent enthalpic and entropic signatures. Operando difference infrared spectroscopy further demonstrates reversible hydration and different temperature dependences of the normalized initial response. Rate-derived kinetic descriptors indicate an enthalpically favorable but entropically penalized response for F-HIPF and an almost athermal, kinetically entropy-favored response for P-HIPF. When deposited on oxidized carbon fibers, F-HIPF increases irradiation-induced evaporation relative to bare CF, showing that a developed permanent pore network is not required for the observed enhancement.
SN - 0743-7463
SN - 1520-5827
ER -