Results 91 to 100 of about 41,874 (287)

Enhanced Li‐Ion Battery Performance with Hybrid MXene/GnR Electrodes: Heterojunctions and Engineered Architectures Supported by DFT Mechanistic Studies for Improved Rate Performance, Stability & Capacity

Advanced Functional Materials, EarlyView.
Lithium‐ion batteries (LIBs) remain central to energy storage but suffer from slow ion transport and degradation. Here, we present a binder‐free Ti3C2Tx MXene/GnR hybrid electrode with a porous 3D architecture formed via freeze casting. The structure enhances conductivity, ion transport, and stability, delivering 401 mAh/g, ∼97% efficiency, and 92 ...
Sara Mohseni Taromsari, Meysam Salari, Dipali Nayak, Saeed Habibpour, Ling Wei Hwang, Cristopher Carreiro, Carlos M. Da Silva, Aiping Yu, Chul B. Park, Cristina H. Amon, Hani E. Naguib   +10 more
wiley   +1 more source

A microfluidics-integrated impedance/surface acoustic resonance tandem sensor

Sensing and Bio-Sensing Research, 2019
We demonstrate a dual sensor concept for lab-on-a-chip in-liquid sensing through integration of surface acoustic wave resonance (SAR) sensing with electrochemical impedance spectroscopy (EIS) in a single device.
Kiryl Kustanovich, Ventsislav Yantchev, Baharan Ali Doosti, Irep Gözen, Aldo Jesorka   +4 more
doaj   +1 more source

Measuring individual overpotentials in an operating solid-oxide electrochemical cell

, 2010
We use photo-electrons as a non-contact probe to measure local electrical potentials in a solid-oxide electrochemical cell. We characterize the cell in operando at near-ambient pressure using spatially-resolved X-ray photoemission spectroscopy.
Adler, Ahn, Andújar, Anthony H. McDaniel, Appleby, Bessler, Bockris, Chigane, Ebel, Edgell, Fahlman, Farid El Gabaly, Garcia-Miquel, Goodwin, Grass, Grove, Haile, Hendrik Bluhm, Kevin F. McCarty, Kirubakaran, Ladas, Lewis, Mann, Mark A. Linne, Michael Grass, Ni, Noren, Nörskov, Ogletree, Roger L. Farrow, Rossmeisl, Rysselberghe, Salmeron, Siegbahn, Trasatti, Trasatti, Vogler, Whaley, Winter, Zahid Hussain, Zhi Liu   +40 more
core   +1 more source

Test of different sensitizing dyes in dye-sensitized solar cells based on Nb2O5 photoanodes [PDF]

, 2018
High-performance dyes routinely employed in TiO2-based dye-sensitized solar cells (DSSCs) were tested in cells assembled using Nb2O5 nanostructure-based photoanodes. The sensitizers were chosen among both metal-complex (two Ru-based, N749 and C106, and
Latini, Alessandro, Panetta, Riccardo
core   +1 more source

Shape‐Controlled Guanine Self‐Assemblies for Stable and Fast‐Ion Solid–Electrolyte Interphases in Sustainable Li Metal Batteries

Advanced Functional Materials, EarlyView.
The shape of guanine self‐assemblies is tuned by introducing alkyl (G8), fluoroalkyl (G8f), and oligoether (G8g) side chains into the G moiety. The scanning tunneling microscopy results and calculations show that the presence and type of the side chain strongly affect the G self‐assembly network.
So‐Huei Kang, So‐Dam Sohn, Kyung Min Lee, Seok‐Kyu Cho, Byongkyu Lee, Ji Eun Lee, Sang‐Young Lee, Sang Kyu Kwak, Hyung‐Joon Shin, Changduk Yang   +9 more
wiley   +1 more source

Estimating electrical properties and the thickness of skin with electrical impedance spectroscopy: Mathematical analysis and measurements

Journal of Electrical Bioimpedance, 2012
Electrical impedance spectroscopy (EIS) allows for the study and characterization of tissue alterations and properties associated with the skin. Here, the potential application of EIS to estimate the thickness of the stratum corneum is explored in the ...
Birgersson U., Birgersson E., Ollmar S.
doaj   +1 more source

Determination of Donepezil HCl Release from Electrospun Fiber by Electrochemical Impedance Spectroscopy

International Journal of Electrochemical Science, 2016
Electrospun fibers of polyurethane [PU] and [PU/HPC] with or without drug loaded were successfully fabricated by electrospinning technique. The structures of the PU/ hydroxypropyl cellulose (HPC) electrospun fiber loaded with Donepezil (DP) were ...
Asli Gencturk, A. Sezai Sarac
doaj   +1 more source

Photoelectrochemical properties of mesoporous NiOx deposited on technical FTO via nanopowder sintering in conventional and plasma atmospheres [PDF]

, 2015
Nanoporous nickel oxide (NiO x ) has been deposited with two different procedures of sintering (CS and RDS). Both samples display solid state oxidation at about 3.1 V vs Li+/Li.
A Hagfeldt, A Hagfeldt, A Nattestad, AG Marrani, AJ Bard, AJ Bard, B O’Regan, C Ho, CG Granqvist, D Dini, D Dini, D Dini, D Yohe, E Masetti, EA Gibson, F Decker, F Vera, F Švegl, FA Cotton, G Boschloo, G Boschloo, GB Smith, H Bode, H Gerischer, J Halme, J He, J He, J Rousset, L Chernyak, L D’Amario, M Awais, M Awais, M Awais, M Awais, M Awais, M Awais, MEG Lyons, PG Dickens, PR Bueno, S Passerini, S Powar, S Sheehan, SF Cogan, SP Mitoff, SR Morrison, V Novelli, VPS Perera, VPS Perera, W Estrada   +48 more
core   +2 more sources

In‐Situ Solution Complexation for n‐Type Surface‐Energetics Reconstruction in 2.0 eV Ultra‐Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A reactive in situ solution complexation strategy reconstructs the surface of 2.0 eV ultra‐wide‐bandgap perovskites via proton transfer. This chemical modulation eliminates metallic defects and induces a degenerate‐like n‐type surface, establishing an Ohmic tunneling contact.
Saemon Yoon, Han‐Gyun Lim, Jinyoung Kim, Gyu Min Kim, Seojun Lee, Jun Ryu, SungWon Cho, Jincheol Kim, Hyosung Choi, Jung Sang Cho, Jongsung Park, Dong‐Won Kang   +11 more
wiley   +1 more source

Exploring faradaic and non-faradaic electrochemical impedance spectroscopy approaches in Parkinson's disease diagnosis

Heliyon
Parkinson's disease is a neurodegenerative condition defined by the progressive death of dopaminergic neurons in the brain. The diagnosis of Parkinson's disease often uses time-consuming clinical evaluations and subjective assessments.
Hussaini Adam, Subash C.B. Gopinath, Tijjani Adam, Makram A. Fakhri, Evan T. Salim, Sreeramanan Subramaniam   +5 more
doaj   +1 more source