Results 101 to 110 of about 37,055 (297)

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

All-Solid-State Batteries Using Rationally Designed Garnet Electrolyte Frameworks [PDF]

, 2020
Functioning bulk-type all-solid-state batteries in a practical form factor with composite positive electrodes, using Al-substituted Li7La3Zr2O12 (LLZO) as the solid electrolyte, have been demonstrated for the first time.
Alvarado, J, Chen, G, Doeff, MM, Heywood, S, Parkinson, DY, Shen, H, Sofie, SW, Yi, E   +7 more
core   +1 more source

Trap‐Modified Inverted Organic Photodetectors via Layer‐by‐Layer Processing with Poly(N‐vinylcarbazole) Additives

Advanced Functional Materials, EarlyView.
Trap state engineering in inverted organic photodetectors (OPDs) is achieved via combined layer‐by‐layer (LbL) processing and poly(N‐vinylcarbazole) (PVK) incorporation. LbL reduces the trap density while PVK additives gradually shift trap states from shallow band‐edge to deep mid‐gap levels, tailoring the energy distribution.
Jingwei Yi, Yi Yang, Yusen Pei, Apurva Gadikar, Vahid Mahdikhah, Myratgeldi Kotyrov, Seung Hyun Kim, Kenan Gundogdu, Wei You, Harald Ade, Franky So   +10 more
wiley   +1 more source

A three‐way electrolyte with ternary solvents for high‐energy‐density and long‐cycling lithium–sulfur pouch cells

SusMat
Lithium–sulfur (Li–S) batteries promise high‐energy‐density potential to exceed the commercialized lithium‐ion batteries but suffer from limited cycling lifespan due to the side reactions between lithium polysulfides (LiPSs) and Li metal anodes.
Zheng Li, Legeng Yu, Chen‐Xi Bi, Xi‐Yao Li, Jin Ma, Xiang Chen, Xue‐Qiang Zhang, Aibing Chen, Haoting Chen, Zuoru Zhang, Li‐Zhen Fan, Bo‐Quan Li, Cheng Tang, Qiang Zhang   +13 more
doaj   +1 more source

Surface modification using heptafluorobutyric acid to produce highly stable Li metal anodes. [PDF]

Nat Commun, 2023
Xie Y, Huang Y, Zhang Y, Wu T, Liu S, Sun M, Lee B, Lin Z, Chen H, Dai P, Huang Z, Yang J, Shi C, Wu D, Huang L, Hua Y, Wang C, Sun S.   +17 more
europepmc   +1 more source

How Voltage Drops are Manifested by Lithium Ion Configurations at Interfaces and in Thin Films on Battery Electrodes

, 2015
Battery electrode surfaces are generally coated with electronically insulating solid films of thickness 1-50 nm. Both electrons and Li+ can move at the electrode-surface film interface in response to the voltage, which adds complexity to the "electric ...
Leenheer, Andrew, Leung, Kevin
core   +2 more sources

Pore Size Effects of Mesoporous N‐Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction

Advanced Functional Materials, EarlyView.
By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb, Christian Völker, Lars Guggolz, Anna Fischer   +3 more
wiley   +1 more source

Nanostructured ion beam-modified Ge films for high capacity Li ion battery anodes

, 2016
Nanostructured ion beam-modified Geelectrodes fabricated directly on Ni current collector substrates were found to exhibit excellent specific capacities during electrochemical cycling in half-cell configuration with Li metal for a wide range of cycling ...
Darby, B. L., Elliman, R. G., Jones, K. S., Rudawski, N. G., Volinsky, A. A., Yates, B. R.   +5 more
core   +1 more source

Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors

Advanced Functional Materials, EarlyView.
π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato, Soh Kushida, Nafees Umar Draz, Dan Kyotani, Emanuel Smarsly, Kyota Yoshinaga, Wenhao He, Uwe H. F. Bunz, Kazuhiro Marumoto, Tatsuya Mori, Yohei Yamamoto   +10 more
wiley   +1 more source

Metal Compound‐Based Heterostructures in Anodes Promote High Capacity and Fast Reaction Kinetic for Lithium/Sodium‐Ion Storage: A Review

ChemElectroChem
In recent years, metal compound‐based heterojunctions have received increasing attention from researchers as a candidate anode for lithium/sodium‐ion batteries, because heterojunction anodes possess unique interfaces, robust architectures, and ...
Dr. Mengmeng Zhang, Xina Mou, Xin Zhou, Jin Wang, Dr. Hui Li, Prof. Chunrui Wang   +5 more
doaj   +1 more source