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pH detection is related to human beings' life closely. Herein, a porous metal hydrogen-bonded organic framework (MHOF) Co-CDI-CO was designed and synthesized, which could be utilized to detect the pH values of strong acids. The sensitivity of pH detection was in the range of pH 2.0-2.4 with an accuracy of 0.1, which mainly depended on the different degree of crystal surface damage. The MHOF Co-CDI-CO had potential applications with the advantages of low cost, easy storage, and great sensitivity for pH detection as a pH sensor.
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http://dx.doi.org/10.1021/acs.inorgchem.2c02742 | DOI Listing |
ChemSusChem
September 2025
Soochow Institute for Energy and Materials Innovations (SIEMIS), Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, College of Energy, Soochow University, Suzhou, 215006, P. R. China.
The electrochemical reduction of CO to CH offers a promising pathway for renewable energy storage, yet remains limited by sluggish kinetics, poor catalyst stability, and competing hydrogen evolution reactions (HER). Herein, a host-guest strategy is reported for engineering metal-organic frameworks (MOFs) through the encapsulation of conductive polymers to stabilize reticular skeletons and regulate interfacial water for efficient CO-to-CH conversion. Specifically, polypyrrole (PPy) and polyaniline (PANI) are confined within Cu-anchored UiO-67 frameworks, resulting in hybrid catalysts-PPy@Cu-UiO-67 and PANI@Cu-UiO-67-with preserved crystallinity and enhanced electronic conductivity.
View Article and Find Full Text PDFPhys Chem Chem Phys
September 2025
Department of Chemistry, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India.
We have investigated the effects of varying salt concentrations on the structure of the liquid/vapor interfaces of aqueous solutions of NaNO, Mg(NO), and Ca(NO) salts using molecular dynamics simulations and vibrational sum frequency generation (VSFG) spectral calculations. The current study reveals a weak interfacial propensity of the nitrate ions and formation of an ionic double-layer at the interfaces. The tetrahedral hydrogen bond network is disrupted more by ions in the bulk phase compared to the interface, with the extent of disruption increasing with concentration.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
August 2025
Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi 445000, PR China. Electronic address:
Thorium (Th) has a wide range of applications in industries such as medicine and the nuclear industry, so it is critical to develop effective detection technologies to avoid the hazards they pose to the environment and human health. In this study, we used 4, 4', 4″-(1, 3, 5-triazine-2,4,6-triyl)tribenzoic acid (HTATB) as the starting material to form a hydrogen-bonded organic framework (TATB-HOF) at room temperature by hydrogen-bonding self-assembly. We then functionalized it with Eu using a post-synthesis modification approach to produce a red-fluorescent HOF(Eu@TATB-HOF).
View Article and Find Full Text PDFNat Commun
August 2025
State Key Laboratory of Advanced Separation Membrane Materials, School of Chemistry, Tiangong University, Tianjin, P. R. China.
Chiral nanostructures hold transformative potential across diverse fields, yet their assembly construction remains hindered by the high entropic barrier of dissymmetric building units. Inspired by biological structural dynamics, we construct two chiral copper-based hydrogen-bonded frameworks [D(L)-Cu-crystals] via hydrogen-bonded assembly using chiral metal-organic helical as the building unit. Single-crystal X-ray diffraction elucidates hierarchical chirality evolution from asymmetric coordinations to helical chains and framework packing.
View Article and Find Full Text PDFInorg Chem
August 2025
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
The development of nonlinear optical (NLO) crystal materials with short ultraviolet cutoff edges is of great significance to laser applications and industrial development. Based on acentric AE-M-F (SrZrF (), CaZrF (), and CaHfF (), with AE = alkaline earth metal and M = Zr, Hf), a novel hydrated zirconium-based fluoride, KNaZrF(HO) (), was obtained through a cosubstitution strategy involving mixed alkali metal cations. KNaZrF(HO) crystallizes in the 2 space group and presents a unique three-dimensional {[ZrF(HO)]} anion framework composed of hydrogen-bonded {[ZrF(HO)]} chains.
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