Results 151 to 160 of about 8,175 (209)

Material‐Dependent Functionalization of CVD‐Grown TMDC Monolayers Probed by Vibrational Nanospectroscopy

open access: yesSmall, EarlyView.
PiFM‐led investigation of material‐specific electrochemical aryl diazonium reduction on 2D transition metal dichalcogenide MoSe2‐WSe2 lateral heterostructure monolayers, with mechanisms explained by molecular dynamics simulations. ABSTRACT Understanding the molecular‐level mechanisms governing covalent functionalization of two‐dimensional ...
Maziar Jafari   +5 more
wiley   +1 more source

Synergistic Integration of SrFeO3 Nanoparticles With Exfoliated MXene (Ti3C2Tx/V2CTx) Nanosheets for High Performance Supercapacitors

open access: yesSmall, EarlyView.
A facile mechanical mixing, probe‐sonication, and annealing strategy was employed to intercalate SrFeO3 nanoparticles between Ti3C2Tx and V2CTx MXene sheets, constructing robust heterostructures for advanced supercapacitors. The inserted perovskite suppresses MXene restacking while contributing additional Faradaic redox activity.
Zulfqar Ali Sheikh   +8 more
wiley   +1 more source

High‐Efficiency Lithium Sulfur Cells With Suppressed Polysulfide Solubility Using a Cost‐Effective Ammonium‐Based Ionic Liquid Electrolyte

open access: yesSmall, EarlyView.
The cost‐effective ammonium‐based ionic liquid electrolyte, N₁₁₁3FSI, suppresses polysulfide dissolution to sub‐millimolar levels in lithium–sulfur batteries. The electrolyte promotes efficient FSI− anion reduction, forming a dense, LiF‐rich solid‐electrolyte interphase on both the lithium metal anode and sulfur cathode. This dual‐electrode passivation
Ajit Kumar   +9 more
wiley   +1 more source

Balancing Iridium Speciation in Ir/NiO Single‐Atom Catalysts for Overall Water Splitting

open access: yesSmall, EarlyView.
An Ir8%‐NiO electrocatalyst, containing almost equimolar amounts of embedded and surface‐adsorbed iridium single atoms, delivered outstanding bifunctional OER/HER activity in alkaline, neutral and acidic media. When applied as the anode and cathode catalysts in an anion exchange membrane water electrolyser (AEMWE), Ir8%‐NiO achieved 1.0 A cm−2 at 2.02 ...
Yongfang Zhou   +9 more
wiley   +1 more source

Electrocatalytically Amplified Immunosensing Enabled by Titanium Oxynitride‐Supported Ru Nanodots on Graphene Oxide Hybrid Architecture

open access: yesSmall, EarlyView.
A synergistic effect among the electrocatalytic Ru/TiON‐GO nanocomposite, biorecognition elements, and the [Fe(CN)6]3−/4− redox probe for highly sensitive and selective impedimetric detection of PSA protein in human serum was demonstrated. The immunosensor exhibited a limit of detection of only 0.06 ng mL−1 PSA protein, underscoring the importance and ...
Mitja Koderman   +8 more
wiley   +1 more source

Facile Sprayed and Electro‐Activated Ultra‐Low Pt Loading Catalyst for Hydrogen Evolution Reaction and PEM Water Electrolysis

open access: yesSmall, EarlyView.
A spray‐coating‐assisted electrochemical reduction strategy enables uniformly dispersed 2–3 nm Pt nanoparticles at an ultra‐low loading of 0.0178 mgPt cm−2 on rough gas diffusion electrode surfaces. The resulting architecture delivers exceptional hydrogen evolution activity and PEM water electrolysis performance comparable to commercial Pt/C while ...
Donggeun Eom   +4 more
wiley   +1 more source

Unraveling Structure‐Dependent Performance of Cu–N–C Molecular Catalysts for Electrocatalytic CO2 Methanation

open access: yesSmall, EarlyView.
Copper phthalocyanine (CuPc) and copper tetraphenylporphyrin (CuPr) both contain Cu–N4 sites, yet CuPc shows superior CO2‐to‐CH4 selectivity. Further analysis suggests that the Pc‐macrocycle tunes the electronic structure of Cu center and induces charge transfer, possibly via its π‐conjugated Pc‐ring and bridge‐N environment.
Tengyi Liu   +8 more
wiley   +1 more source

Ultrasonication‐Induced Iridium Single‐Atom Decoration on Anodized NiO Nanosponge Electrocatalyst for Enhanced Oxygen Evolution Reaction

open access: yesSmall, EarlyView.
A facile one‐pot sonochemical strategy generates Ir single‐atom catalysts on nanostructured NiO for enhanced oxygen evolution reaction performance. Surface defects enable strong anchoring of Ir single atoms on NiO. The NiO‐0.5 Ir catalyst exhibits significantly improved activity, supported by structural, spectroscopic, and electrochemical analyses ...
Nastaran Farahbakhsh   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy