Quinoline-Based Organic Frameworks with Divergent Photocatalytic Properties for Hydrogen Production and Furfuryl Alcohol Oxidation.

The Sonogashira coupling reaction between 1,3,5-triethynylbenzene and two quinoline-based building units6-iodo-2-(4-iodophenyl)-4-phenylquinoline or 6-bromo-2-(5-bromopyridin-2-yl)-4-phenylquinolineresulted in the synthesis of conjugated materials designated as quinoline-based organic frameworks (QOFs), specifically and . These materials exhibited comparable structural and photophysical properties and demonstrated their utility in photocatalysis, including hydrogen evolution reactions (HER) and the selective oxidation of furfuryl alcohol to 5-hydroxy-2-(5)-furanone. Interestingly, outperformed in the photocatalytic oxidation of furfuryl alcohol via singlet oxygen (O), whereas exhibited superior efficiency in HER.

The contrasting impacts of polyethylene glycol on electrochemical behaviors of Fe and Zn metal anodes in aqueous batteries.

Polyethylene glycol (PEG) is considered an electrolyte additive to improve the performance of aqueous batteries. Here, we report that PEG enhances the Coulombic efficiency (CE) of an Fe metal anode (FeMA) in aqueous FeCl electrolytes but surprisingly lowers the CE of Zn metal anode (ZMA) in concentrated ZnCl electrolytes. We observed that the PEG addition raises the corrosion potential of FeMA but decreases that for ZMA.

Enhanced Reversibility of Iron Metal Anode with a Solid Electrolyte Interphase in Concentrated Chloride Electrolytes.

Iron is a promising candidate for a cost-effective anode for large-scale energy storage systems due to its natural abundance and well-established mass production. Recently, Fe-ion batteries (FeIBs) that use ferrous ions as the charge carrier have emerged as a potential storage solution. The electrolytes in FeIBs are necessarily acidic to render the ferrous ions more anodically stable, allowing a wide operation voltage window.

What Up with MOFs in Photocatalysis (?): Exploring the Influence of Experimental Conditions on the Reproducibility of Hydrogen Evolution Rates.

Metal-organic frameworks (MOFs) are regarded as promising materials for energy applications, particularly in photocatalytic hydrogen (H) production. This is due to their structural architectures that facilitate charge transfer, and tunable porous and light absorption properties. However, the many characteristics of MOFs including crystal morphology and sizes, surface facets, porosity, light absorption properties, and optical band gaps, can significantly influence their photocatalytic activity, presenting challenges in achieving reproducibility.

Boosting Photocatalytic Hydrogen Production by MOF-Derived Metal Oxide Heterojunctions with a 10.0 % Apparent Quantum Yield.

Photocatalytic hydrogen production offers an alternative pathway to establish a sustainable energy economy, utilizing the Earth's natural sunlight and water resources to address environmental concerns associated with fossil fuel combustion. While numerous photoactive materials exhibit high potential for generating hydrogen from water, the synergy achieved by combining two different materials with complementary properties in the form of heterojunctions can significantly enhance the rate of hydrogen production and quantum efficiency. Our study describes the design and generation of the metal-organic framework-derived (MOF) metal oxide heterojunction herein referred to as RTTA, composed of RuO/N,S-TiO.

Elucidation of the role of metals in the adsorption and photodegradation of herbicides by metal-organic frameworks.

Here, four MOFs, namely Sc-TBAPy, Al-TBAPy, Y-TBAPy, and Fe-TBAPy (TBAPy: 1,3,6,8-tetrakis(p-benzoic acid)pyrene), were characterized and evaluated for their ability to remediate glyphosate (GP) from water. Among these materials, Sc-TBAPy demonstrates superior performance in both the adsorption and degradation of GP. Upon light irradiation for 5 min, Sc-TBAPy completely degrades 100% of GP in a 1.

Photoactive Organo-Sulfur Polymers for Hydrogen Generation.

Herein, we report the synthesis of photoactive polymeric organo-sulfur (POS) materials. These polymers absorb light in the ultraviolet/visible and near-infrared region of the solar spectrum, and upon irradiation, they reduce water to hydrogen (H ). The decoration of POS materials with nitrile (-CN) groups is found to be the critical factor for enhanced interactions with the co-catalyst, Ni P, leading to greater H evolution rates compared to the nitrile-free POS material.