Results 121 to 130 of about 1,732,621 (249)

Ammonia Oxidation for Energy Conversion and Environmental Remediation: Mechanism‐Guided Catalyst Design for Electrochemical, Photocatalytic, and Photoelectrochemical Systems

open access: yesSmall, EarlyView.
This review establishes a mechanism‐guided framework for catalyst design in electrochemical, photocatalytic, and photoelectrochemical ammonia oxidation. By correlating catalyst structure, reaction mechanisms, catalytic performance, and device‐level architectures, it highlights rational engineering strategies and future directions toward efficient ...
Dong Hyun Heo   +2 more
wiley   +1 more source

In Situ Derived Fe/FexOy Janus Electrocatalyst for Efficient Nitrate‐to‐Ammonia Conversion via Intensifying Nitrate Affinity and Active Hydrogen Supply

open access: yesSmall, EarlyView.
A Janus electrocatalyst, Fe/FexOy is facilely synthesized via in situ reconstruction of β‐FeOOH. In particular, the electronically coupled Fe crystal phase with FexOy exhibits high NO3RR performance through synergistic promotion of nitrate adsorption/activation and water activation, offering an alternative platform to conventional bi‐metallic catalyst ...
Sourav Chaule   +5 more
wiley   +1 more source

Advancing Biomass Valorization via Electrocatalytic Oxidation: Design Principles, Emerging Challenges, and Future Perspectives

open access: yesSusMat, EarlyView.
This review categorizes substrates for electrocatalytic biomass valorization by carbon chain length into C2–C3 alcohols, C5–C7 cyclic compounds, and Cn biopolymers. It identifies four universal catalyst design principles: optimizing intermediate adsorption, engineering synergistic multi‐type active sites, accelerating active‐site formation, and ...
Ruya Zhang, Shuaihu Jiang, Yijin Kang
wiley   +1 more source

Gallium Chloride Oxide: Structure Validation of a Direct Wide Bandgap Semiconductor

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
GaClO confirmed as an independent structure type, featuring a layer‐like structure and unoccupied flat bands right above the Fermi level. Gallium chloride oxide (GaClO) was synthesised, and its crystal structure was validated using powder X‐ray diffraction, UV/VIS, NMR, and quantum chemical calculations at the level of density functional theory under ...
Sven Völkel   +3 more
wiley   +1 more source

A comprehensive study on ferredoxin isoforms in the cyanobacterium Synechocystis sp. PCC 6803

open access: yesThe FEBS Journal, EarlyView.
Ferredoxins are small FeS cluster‐containing proteins that play a central role in distributing electrons within the cell. The cyanobacterium Synechocystis sp. PCC 6803 contains several ferredoxin isoforms and their biophysical properties (UV/Vis and EPR spectra, Em potential), expression patterns, and interactions with the electron donors photosystem I
Marko Boehm   +14 more
wiley   +1 more source

Activated hybrid zero-valent iron treatment system and methods for generation and use thereof

open access: yes, 2015
Activated iron media and methods for generating and using the activated iron media. The method involves aqueous suspension comprising a zero-valent iron, ferrous iron, and an iron oxide to provide a settled solid and re-suspending the settled solid to ...
Huang, Yongheng
core  

Factors affecting p-nitrophenol removal by microscale zero-valent iron coupling with weak magnetic field (WMF)

open access: yes, 2017
The effect of WMF on the kinetics of p-nitrophenol (PNP) removal by six commercial zero-valent iron (ZVI) samples from different origins were studied at pH 4.0.
Wanqian Guo   +4 more
core   +1 more source

Lignin, tannic acid and gallic acid reduce sulfolane miscibility in water with implications for pollutant migration and water treatment

open access: yesDiscover Water
Sulfolane is a groundwater and surface water pollutant. Phenolic and polyphenolic compounds are found in plants and are ubiquitous in natural environments.
Erica Pensini   +2 more
doaj   +1 more source

Hydrothermal origin of metabolic phosphorylation

open access: yesThe FEBS Journal, EarlyView.
Serpentinizing hydrothermal vents are candidate sites for biochemical origins. They generate extremely reducing conditions, depositing phosphite (HPO32−) and transition metals, including palladium, in the native (zero‐valent) state. Schlikker et al.
Manon L. Schlikker   +5 more
wiley   +1 more source

Metal–Organic Decomposition Ink‐Derived Cu Foams Enable High Formate Selectivity and Methanol Conversion

open access: yesChemElectroChem, Volume 13, Issue 22, 17 November 2026.
Particle‐free Cu MOD inks provide a solution‐based coating route for porous Cu foams, generating granular Cu structures after calcination. During methanol oxidation, the foams reconstruct into Cu(II)‐rich interfaces with electrochemical behavior consistent with access to high‐valent Cu species under anodic polarization, improving formate selectivity ...
Julian Neumann   +5 more
wiley   +1 more source

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