Results 101 to 110 of about 2,310,149 (278)

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao   +6 more
wiley   +1 more source

Ion-selective carbon nanotube electrodes in capacitive deionisation

open access: yes, 2013
In the capacitive deionisation (CDI) process, counter-ions in the solution are adsorbed on the electrodes, and co-ions are expelled from the electrodes. This so-called co-ion effect hinders desalting performance of the electrodes.
Namita Roy Choudhury (18029617)   +2 more
core  

Construção de eletrodos Ag/Ag2S de configuração convencional, com membrana sinterizada e não sinterizada, para determinação potenciométrica de sulfeto em fluxo [PDF]

open access: yes, 2003
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matematicas. Programa de Pós-Graduação em Química.O comportamento dos eletrodos seletivos a íons sulfeto, construídos em laboratório, foi estudado e comparado ...
Silva, Alessandra Furtado da
core  

Measurement and Modeling of Mean Ionic Activity Coefficient in Aqueous Solution Containing NaNO3 and Poly Ethylene Glycol [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2013
Potentiometric investigation on {H2O+NaNO3+PEG1500} mixtures were made at T=308.15K, using electrochemical cells with two ion-selective electrodes, (Na+ glass) as the cation ion-selective electrode against (NO3- solvent-polymer PVC) as the anion ion ...
Siamak Modarresi   +4 more
doaj  

Noise‐Limited Bit Precision in Ferroelectric Synaptic Transistors for High‐Resolution Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park   +12 more
wiley   +1 more source

Two Coexisting Pathways to Volatility in Valence‐Change Memory Devices

open access: yesAdvanced Functional Materials, EarlyView.
Volatile VCM‐type memristive devices exhibit current relaxation after resistive switching, but their microscopic origin remains debated. Using pulsed measurements and a new Tunnel‐DLTS approach on Pt/SrTiO3/Nb:SrTiO3 devices, we show that post‐SET volatility is predominantly ionic, while electronic contributions—arising from quasi‐Fermi‐level ...
Johannes Hellwig   +3 more
wiley   +1 more source

Potentiometric Investigations on Cation-Selective Electrodes based on Macrocyclic and Acyclic Amides as Ionophores

open access: yes, 2009
Ph.D. ThesisThis Thesis describes fabrication of liquid membrane based ion selective electrodes for biological active metal ions like Ag+, Zn2+, Cu2+, Ni2+ and Co2+ ions using amide, amine, and imine macrocycles containing heteroatoms.
Gupta, Nidhi Rani
core  

Spatially Regulated Lithium Plating via Li2O‐Rich Interphase Enables Durable Fast‐Charging Hybrid Lithium Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A Li2O‐rich solid electrolyte interphase (SEI) is engineered on graphite through a propylene carbonate‐based electrolyte to spatially regulate Li plating. The homogeneous interphase lowers Li nucleation barriers, promotes conformal Li deposition around graphite particles, and suppresses dendritic accumulation, enabling durable hybrid Li‐ion/Li‐metal ...
Robert Kuphal   +8 more
wiley   +1 more source

Improved detection limits and unbiased selectivity coefficients obtained by using ion-exchange resins in the inner reference solution of ion-selective polymeric membrane electrodes

open access: yes, 2000
By using a high concentration of an interfering ion and a low one of the primary ion in the inner reference solution of polymeric membrane ion-selective electrodes (ISEs), the lower detection limit may be improved and unbiased thermodynamic selectivity ...
Ernö Pretsch, Titus Zwickl, Wei Qin
core  

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon   +6 more
wiley   +1 more source

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