Results 141 to 150 of about 173,394 (296)

Efficient Solar‐Driven Interfacial Steam‐Electricity Co‐Generation by Modular Design of CAU‐23/Graphene Hybrid Evaporator

open access: yesCarbon Energy, EarlyView.
A dual‐functional evaporator based on CAU‐23/graphene hybrid is acquired through a modular design strategy. Owing to superior broadband light absorption, optimal wettability, and porous architecture that synergistically integrates nanoconfined ionic channels with photothermal conversion, it exhibits a high evaporation rate of 2.71 kg m−2 h−1 with the ...
Hangyuan Du   +8 more
wiley   +1 more source

SORPTION ISOTHERM OF PYRIDOXINE HYDROCHLORIDE ON GLAUCONITE

open access: yesКонденсированные среды и межфазные границы, 2017
Natural aluminosilicates are promising sorbents that can be used to separate and isolate biologically active substances, namely vitamins. Hydrochloride pyridoxine (vitamin B6) is an important biologically active compound necessary for the normal ...
Kotova Diana L.   +4 more
doaj   +1 more source

Linker Symmetry Lowering as a Strategy to Tune Electronic Properties in Two‐Dimensional Conductive MOFs

open access: yesChemistry – A European Journal, EarlyView.
We present a two‐dimensional conductive metal‐organic framework (2D cMOF) constructed from an organic linker with lower symmetry than those commonly used in related systems. The resulting reduction in lattice symmetry lifts band degeneracies, reshapes the electronic structure, and opens a larger band gap.
Bowen Tan   +4 more
wiley   +1 more source

Rapid and Reusable Amino Acid–Derived MOFs for the Removal of Estrogenic Hormones From Real Water Matrices

open access: yesChemistry – A European Journal, EarlyView.
A family of amino‐acid–derived MOFs enables ultrafast (>90–95% in 30 s) simultaneous removal of four estrogenic contaminants from water under SPE conditions. A leucine‐based MOF shows excellent regenerability and robustness in real samples, with structural evidence revealing efficient hormone encapsulation.
Lidia García   +7 more
wiley   +1 more source

Impact of A‐Site Sr Substitution in LaFeO3 on Syngas Selectivity During Chemical Looping Dry Reforming of Methane (CL‐DRM)

open access: yesChemistry – A European Journal, EarlyView.
Sr doping regulates oxygen exchange and methane activation in LaFeO3, suppressing nonselective CH4 cracking and coke formation during CL‐DRM. La0.7Sr0.3FeO3 provides the optimal balance, delivering ∼40% CH4 conversion, an H2/CO ratio of 2, and >95% carbon balance.
Ganesh Jabotra   +8 more
wiley   +1 more source

Assessing ZIF‐8 Stability for Biomedical Applications Using Fluorescent Probes: Impact of Covalent Conjugation

open access: yesChemistry – A European Journal, EarlyView.
Using fluorescein as a probe, we compare PEG (polyethylene glycol) surface coatings of ZIF‐8 (zeolitic imidazolate framework‐8) based on coordinative versus covalent attachment and show that PEG coatings provide only limited protection in phosphate‐buffered saline.
Michael B. Stammler, Hana Bunzen
wiley   +1 more source

Extended batch adsorber analogue model (e‐BAAM) for rapid evaluation of CO2 capture pressure swing adsorption cycles

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This work presents a simplified extended‐batch adsorber analogue model (e‐BAAM) to quantify key performance metrics such as purity, recovery, and energy trends for various pressure swing adsorption (PSA) process cycles for CO2$$ {\mathrm{CO}}_2 $$ capture.
Gwyneth Liske, Arvind Rajendran
wiley   +1 more source

Application of artificial neural network and general machine learning modelling on CO2 adsorption in moisture equilibrated South African high and medium rank coals

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the effect of moisture on CO2 adsorption in South African coals using both experimental and machine learning approaches. Three coal samples (SL, TN, and EM) with varying ranks (RoVmr: 3.49%, 1.26%, and 0.64%, respectively) were collected from different regions of South Africa.
Kasturie Premlall   +3 more
wiley   +1 more source

Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2$$ {\mathrm{O}}_2 $$, air, or less commonly N2O$$ {\mathrm{N}}_2 ...
Gholamreza Roohollahi   +7 more
wiley   +1 more source

Tailoring phosphate mining waste into high‐performance geopolymers: A sustainable process for selective CO2/N2 separation

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Overview of the synthesis, structural features, and CO2 capture performance of geopolymer‐based adsorbents prepared from phosphate mining waste, including granular and spherical materials with high surface area, CO2 capture capacity, and CO2/N2 selectivity.
Alisson Lopes Freire   +7 more
wiley   +1 more source

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