Results 41 to 50 of about 262,231 (292)

Tailoring the Hollow Structure within CoSn(OH)₆ Nanocubes for Advanced Supercapacitors

Molecules, 2022
The enhanced application performance of hollow-structured materials is attributed to their large surface area with more active sites. In this work, the hollow CoSn(OH)6 nanocubes with increased surface area and mesopores were derived from dense CoSn(OH)6
Zhiyong Yang, Chunxia Li, Fangfang Liu, Xiaowei Lv, Lei Zhang, Yanli Fang, Hui Wang   +6 more
doaj   +1 more source

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

Advanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa, Frank Kaulfuß, Stefan Makowski, Volker Weihnacht   +3 more
wiley   +1 more source

In Vivo Monitoring of Thrombo‐Inflammatory Biomarkers via Molecularly Imprinted Polymer‐Integrated Hydrogel Microneedles

Advanced Materials, EarlyView.
A wearable electrochemical microneedle patch integrates Prussian Blue redox transduction with molecularly imprinted polymer recognition for reagent‐free sampling and detection of thrombo‐inflammatory biomarkers in dermal interstitial fluid. The platform tracks thrombin and inflammatory cytokines with sensitive in vitro, ex vivo, and in vivo performance,
Mahmoud Ayman Saleh, Peyman GhavamiNejad, Arash Khorrami Jahromi, Sanjana Srikant, Sripadh Guptha Yedire, Fatemeh Keyvani, Roozbeh Siavash Moakhar, Sajad Shiekh, Mackenzie Graham, Joe Quadrilatero, Mahla Poudineh, Sara Mahshid   +11 more
wiley   +1 more source

Hybrid Metal-Organic Framework-Derived Dual Active Site Catalysts Enabling Surface-Enriched Cathode and Modified Zinc Anode for Long-Life Zinc-Air Batteries. [PDF]

Adv Sci (Weinh)
This work demonstrates the implementation of MOF‐assisted anode and cathode materials for prolonged cycling of zinc‐air batteries with strong redox capability and structural stability. ABSTRACT The surface modification of zinc anodes and the development of effective cathode dual‐functional oxygen electrocatalysts remain of paramount interest for ...
Kumar RS, Kaviyarasu D, Sayfiddinov D, Kathiresan M, Mannu P, Dong CL, Stephan AM, Yoo DJ.   +7 more
europepmc   +2 more sources

Influence of the cathode material in the cathode fall characteristics of a hydrogen hollow cathode glow-discharge [PDF]

, 2018
Producción CientíficaIn this work, we present Doppler free two photon optogalvanic measurements to determine the local electric field strength (E-field) in the cathode fall region of a hollow cathode discharge, operated in pure hydrogen, via the Stark ...
C. Pérez, Pérez, Concha, de la Rosa, Mª Inmaculada, González Fernández, Verónica, M. I. de la Rosa, Rosa García, María Inmaculada de la, Grützmacher, Klaus, Grützmacher, K., V. Gonzalez-Fernandez, Pérez, C., K. Grützmacher   +10 more
core   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Hollow cathode chemical modelling

, 2008
In this paper the state of hollow cathode life time modelling at the University of Southampton will be reported. Two models have been developed: one for BaO depletion from the hollow cathode insert and another for low work function compounds deposition ...
Coletti, M., Gabriel, S.B.
core   +1 more source

High Power LiMn2O4 Hollow Microsphere Cathode Materials for Lithium Ion Batteries

International Journal of Electrochemical Science, 2013
Lithium manganese oxide (LiMn2O4) hollow microspheres have been synthesized by using MnCO3 precursor as a self-template. The microstructure of the hollow microspheres is characterized by X-ray diffraction and environmental scanning electron microscopy ...
Chen Wei, Jianqiu Deng, Liujiang Xi, Huaiying Zhou, Zhongmin Wang, C.Y. Chung, Qingrong Yao, Guanghui Rao   +7 more
doaj   +1 more source

Note: Coaxial-heater hollow cathode

Review of Scientific Instruments, 2017
The design and tests of a LaB6 hollow cathode with a novel heater are presented. In the new design, the heater wire is completely encapsulated around the cathode tube and a coaxial return electrode, thereby eliminating hot spots on the heater wire due to the free hanging regions. Since the new heater confines the Joule heating to the region of interest,
Kurt, Huseyin, Kokal, Ugur, Turan, Nazli, Celik, Murat   +3 more
openaire   +3 more sources

Sustainable and Multifunctional Natural Macromolecular Polymers for Aqueous Zn Metal Batteries

Advanced Materials, EarlyView.
We comprehensively review the structure‐function relationships and regulatory mechanism of natural macromolecular polymers in stabilizing zinc anodes at the microscopic and mesoscopic scales. The interactions among polymer structures, optimization strategies, and regulatory mechanisms are discussed systematically summarizing recent related research ...
Yunuo Shi, Bo Jiang, Jingcheng Zhang, Xiaodong Shao, Peixun Xiong, Lutong Shan, Shengyang Huang, Mengfang Liang, Mengyao Chang, Fangyan Liu, Wenwu Li, Baoyu Xia, Wei Ji, Ho Seok Park   +13 more
wiley   +1 more source