Results 131 to 140 of about 152,699 (329)

Preparation and electrochemical properties of manganese dioxide flexible electrodes for zinc-ion batteries

工程科学学报
Manganese dioxide (MnO2), a commonly used cathode material for zinc-ion batteries (ZIBs), has attracted considerable attention owing to its abundant reserves in nature, safety, and high theoretical capacity.
Shuang XI, Ximing CHENG, Xingwei GAO, Huilong LIU   +3 more
doaj   +1 more source

Spatially Resolved Operando Synchrotron-Based X-Ray Diffraction Measurements of Ni-Rich Cathodes for Li-Ion Batteries

, 2022
Andrew S. Leach, Alice V. Llewellyn, Chao Xu, Chun Tan, Thomas M. M. Heenan, Alexander Dimitrijevic, Karin Kleiner, Clare P. Grey, Dan J. L. Brett, Chiu C. Tang, Paul R. Shearing, Rhodri Jervis   +11 more
openalex   +1 more source

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

Advanced Functional Materials, EarlyView.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange, Jinjie Zhu, Angus Pedersen, Joseph Parker, S. Esmael Balaghi, Shaohua Li, Silvia Favero, José Ignacio Martínez, Sarah Haigh, Maria‐Magdalena Titirici, Anna Fischer, Jesús Barrio   +11 more
wiley   +1 more source

Operando X-ray radiography of liquid water distribution in 100 mm polymer electrolyte fuel cell channels

Electrochemistry Communications
Preventing the accumulation of water in the gas diffusion layer (GDL) proves effective in enhancing the performance of polymer electrolyte fuel cells (PEFCs).
Akihiko Kato, Satoshi Yamaguchi, Wataru Yoshimune, Kazuhisa Isegawa, Masashi Maeda, Daisuke Hayashi, Takahisa Suzuki, Satoru Kato   +7 more
doaj   +1 more source

Practices and attitudes about cathode-ray tube-based and film-based image interpretation [PDF]

, 1992
Bret F. Coughlin, Steven E. Seltzer, Richard G. Swensson, Philip F. Judy   +3 more
openalex   +1 more source

‘Oxygen Bound to Magnesium’ as High Voltage Redox Center Causes Sloping of the Potential Profile in Mg‐Doped Layered Oxides for Na‐Ion Batteries

Advanced Functional Materials, EarlyView.
Na‐ion batteries ‐ Impact of doping on the oxygen redox: The sloping potential of NaMg0.1Ni0.4Mn0.5O2 above 4.0 V is caused by a new redox center (arising from the ‘O bound to Mg’), having a higher potential but being more irreversible compared to the ‘O bound to Ni’.
Yongchun Li, Konstantin Köster, Katherine A. Mazzio, Yanan Sun, Annica I. Freytag, Deniz Wong, Christian Schulz, Götz Schuck, Volodymyr Baran, Alba San Jose Mendez, Marcin Zając, Payam Kaghazchi, Philipp Adelhelm   +12 more
wiley   +1 more source

Influence of Transition-Metal Order on the Reaction Mechanism of LNMO Cathode Spinel: An Operando X-ray Absorption Spectroscopy Study

, 2022
Marcus Fehse, Naiara Etxebarria, Laida Otaegui, Marta Cabello, Silvia Martín-Fuentes, Maria Angeles Cabañero, Icíar Monterrubio, Christian Fink Elkjær, Óscar Fabelo, Nahom Asres Enkubari, Juan Miguel López del Amo, Montse Casas‐Cabanas, Marine Reynaud   +12 more
openalex   +1 more source

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

A Study on the Thermal Behavior of LiMnPO₄ Cathode for Li Secondary Battery by Using Synchrotron Based X-ray Techniques [PDF]

, 2012
Hyunchul Kim, Jaeyoon Kim, Sangwoo Lee, Donghyuk Jang, Shoaib Muhammad, Won‐Sub Yoon, Young‐Min Choi, Kyu‐Sung Park   +7 more
openalex   +1 more source

Powering the Future: A Cobalt‐Based Catalyst for Longer‐Lasting Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A novel N‐doped graphitic shell‐encapsulated Co catalyst reveals superior bifunctional ORR/OER activity in alkaline media, empowering outstanding liquid and quasi‐solid‐state ZAB activity. The system delivers long‐term durability, a peak power density of 127 mW cm−2 and successfully powers an LED and a mini fan.
Manami Banerjee, Peng Ren, Greesh Kumar, Lucie Lindenbeck, Byoung Joon Park, Anna Rokicińska, Piotr Kuśtrowski, Adam Slabon, Francesco Ciucci, Ramendra Sundar Dey, Shoubhik Das   +10 more
wiley   +1 more source