Results 161 to 170 of about 11,337 (309)

Hollow cathode life time model

, 2009
In this paper the latest advances in the hollow cathode lifetime modeling carried out at the University of Southampton will be presented. A barium oxide insert depletion model and a surface low work function compounds deposition/depletion model have been
Gabriel, Stephen B., Coletti, Michele
core  

Electronic Synergy in NiCo‐Embedded Nitrogen‐Doped Hollow Mesoporous Carbon Spheres for Bifunctional Oxygen Catalysis and Zinc–Air Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study employs a hard‐templating etching strategy to synthesize N‐doped hollow mesoporous carbon spheres embedded with NiCo nanoparticles (denoted as NiCo@N‐HMCS). The optimized catalyst exhibits exceptional bifunctional catalytic activity for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline media, achieving a ...
Pengyu Tan, Jianwei Lu, Yimin Chen, Kaiwen Yang, Kun Luo, Dan Liu, Weiwei Lei   +6 more
wiley   +1 more source

Generation of Ammonia in a Pulsed Hollow Cathode Discharge Operated in an Ar/H₂/N₂ Gas Mixture Detected by Fourier Transform Infrared. [PDF]

ACS Sustain Chem Eng
Hippler R, Cada M, Knizek A, Ferus M, Hubicka Z.   +4 more
europepmc   +1 more source

Enhancing Anode‐Free Lithium Metal Batteries: A Lightweight MPTS‐MXene Current Collector for Superior Performance and Energy Density

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study introduces an MPTS‐modified MXene current collector for anode‐free lithium metal batteries (AFLMBs). A key advantage of MPTS‐MXene is its ultralight weight, only 15% as heavy as standard copper per unit volume. Its special layered structure and Si‐O rich surface help lithium deposit smoothly and flat, while forming a protective layer that ...
Jiawei Ren, Jiayi Zhang, Jingchao Zhang, Jianbo Li, Yonas Tsegaye Megra, Jianchuan Wang, Yong Du, Rong Huang, Yi Cui, Chenguang Liu, Li Yang   +10 more
wiley   +1 more source

Tantalum-doped tin oxide thin films using hollow cathode gas flow sputtering technology. [PDF]

Heliyon
Huo F, Muydinov R, Seibertz BBO, Wang C, Hartig M, Alktash N, Gao P, Szyszka B.   +7 more
europepmc   +1 more source

Co-Flow Hollow Cathode Technology

, 2011
Hall thrusters utilize identical hollow cathode technology as ion thrusters, yet must operate at much higher mass flow rates in order to efficiently couple to the bulk plasma discharge.
Goebel, Dan M., Hofer, Richard R.
core   +1 more source

Heterogeneous Single/Dual‐Atom Electrocatalysts in Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes recent advances in single‐atom and dual‐atom electrocatalysts for high‐performance lithium–sulfur batteries. The text systematically covers the classification of catalysts by active metal centers, key synthesis methods, in situ characterization for mechanistic insights, and electrocatalytic mechanisms.
Wenbin Li, Ying Xin, Zhaoliang Zhang, Jin Wang   +3 more
wiley   +1 more source

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam, Sajjad Ali, Pir Muhammad Ismail, ABM Sharif Hossain   +3 more
wiley   +1 more source

Understanding hollow cathode thrust production mechanisms

, 2009
This paper reviews some of the design considerations for improving hollow cathode thrust efficiency and investigates propellant acceleration mechanisms based on experimental testing of a T5, T6 and ¼ inch cathode.
Grubisic, A.N., Gabriel, S.B.
core  

Modular Interfacial Engineering via Nanofiber‐Reinforced Hydrogels for Stabilizing Zn Anodes Toward High‐Performance Zn‐Based Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Inspired by reinforced concrete casting, a modular interfacial engineering strategy was developed by integrating a rigid polyacrylonitrile fiber skeleton with an ion‐regulating hydrogel matrix. This composite interface homogenizes Zn2+ flux, accelerates ion transport, and stabilizes Zn deposition while suppressing hydrogen evolution and corrosion ...
Zixuan Chen, Bo Xiang, Pengcheng Wang, Zixuan Yang, Chi‐Pong Tsui, Chak‐Yin Tang, Meifang Wang, Yunhai Zhu, Yingkui Yang   +8 more
wiley   +1 more source