Results 91 to 100 of about 146,657 (301)

Ablation‐Immune Thermal Armor Via Microstructural‐Compatibility Design for Extreme Thermal Conditions

Advanced Science, EarlyView.
This study unveils a microstructural‐compatibility design strategy that integrates reactive melt infiltration with plasma spraying to fabricate carbon fiber‐reinforced ZrC‐SiC composites. The deliberate incorporation of SiC into the ZrC coating releases heat accumulation, suppresses detrimental lamellar ZrO2 formation, and reduces residual stress. This
Hongkang Ou, Lingxiang Guo, Bing Liu, Ziyi Yi, Yuyu Zhang, Jia Sun, Qiangang Fu   +6 more
wiley   +1 more source

Rhombohedral stacking-faults in exfoliated highly oriented pyrolytic graphite

Carbon Trends
The recent observation of possible granular superconductivity in highly oriented pyrolytic graphite (HOPG) has attracted significant research interest. Here we report a novel investigation on the structural-properties of exfoliated-HOPG.
Filippo Boi, Cheng-Yang Lee, Shanling Wang, Hansong Wu, Lei Li, Lin Zhang, Jiaxin Song, Yixin Dai, Ayoub Taallah, Omololu Odunmbaku, Anna Corrias, Aleksandra Baron-Wiechec, Shuping Zheng, Salvatore Grasso   +13 more
doaj   +1 more source

Friction and wear of metals in contact with pyrolytic graphite [PDF]

, 1975
Sliding friction experiments were conducted with gold, iron, and tantalum single crystals sliding on prismatic and basal orientations of pyrolytic graphite in various environments, including vacuum, oxygen, water vapor, nitrogen, and hydrogen bromide ...
Buckley, D. H., Brainard, W. A.
core  

Surface topography of pyrolytic graphite

, 1990
Measurements on highly oriented pyrolytic graphite (HOPG) have been performed with a high-resolution spot profile low-energy electron diffraction system (SPA-LEED).
Brongersma, H.H., Roosenbrand, A.G., van Beckhoven, M.W.C.   +2 more
core   +1 more source

Nanocluster‐Assisted OH Ligand Modification Optimizes Activity and Stability of Fe‐N‐C Catalysts

Advanced Science, EarlyView.
A nanocluster‐assisted ligand engineering stabilizes OH‐modified FeN4 active sites through strong electronic coupling between isolated Fe atoms and adjacent nanoclusters. This synergy optimizes oxygen‐intermediate adsorption, lowers ORR energy barriers, and breaks the conventional activity–stability trade‐off, enabling high ORR activity, exceptional ...
Xue Zhao, Junpeng Chen, Shice Wang, Zhao Yu, Jing Wang, Qiuming Peng, Ge Li   +6 more
wiley   +1 more source

Nickelferrite on Pnictogen Functionalized Carbon Nanohorns. Bifunctional ORR and OER Catalysts in Rechargeable Zinc‐Air Batteries

Advanced Science, EarlyView.
A systematic study on the performance of N,P‐doped NiFe2O4@CNH bi‐functional hybrid electrocatalysts for rechargeable zinc‐air batteries is presented. The importance of P, N‐doping and the intimate tethering of nickel‐ferrite nanocubes on the carbon nano‐horn (CNH) surface which are well dispersed on the surface of N,P doped CNHs.
Sudheer Kumar Yadav, Vanessa Trouillet, Jonas Lins, Torsten Gutmann, Jörg J. Schneider   +4 more
wiley   +1 more source

Differential pulse voltammetric determination of an immunosuppressive drug teriflunomide on an edge plane pyrolytic graphite electrode

, 2017
In the present work, sensitive and selective determination of teriflunomide (Trf) on an edge plane pyrolytic graphite electrode (EPPGE) using differential pulse voltammetry (DPV) is presented for the first time.
Sławomira Skrzypek, Andrzej Leniart, Kinga Kaczmarska, Mariola Brycht   +3 more
core   +1 more source

Synergistic Integration of Fe–N4 Single‐Atom Sites and Directionally Aligned Electrode Architecture for High‐Performance Lithium–Sulfur Batteries

Advanced Science, EarlyView.
A directionally ice‐templated sulfur cathode integrated with atomically dispersed Fe–N4 catalytic sites is developed for high‐performance lithium–sulfur batteries. The structure–catalysis synergy accelerates Li+ transport and polysulfide conversion, leading to high sulfur utilization and stable long‐term cycling performance.
Lin Shen, Yijia Zou, Yuming Wang, Erya Gao, Christopher S. Allen, Tianyi Zhang, Stephen J. Skinner, Nigel P. Brandon, Chun Huang   +8 more
wiley   +1 more source

Synthesis and properties of mirror-like large-grain graphite films

Nature Communications
Graphite films with large grain sizes have been reportedly obtained by using metal as catalysts, but the obtained graphite is mostly heavily wrinkled, thus containing defects that degrade its properties.
Liyuan Zhang, Meihui Wang, Dongho Jeon, Yongqiang Meng, Sun Hwa Lee, Myeonggi Choe, Yunqing Li, Mengran Wang, Sherilyn J. Lu, Zonghoon Lee, Won Kyung Seong, Rodney S. Ruoff   +11 more
doaj   +1 more source

A Facile and Novel Synthetic Route to Gold Nanoparticles Using Cefazolin as a Template for a Sensor

International Journal of Electrochemical Science, 2013
Electrochemical synthesis of gold nanoparticles on the surface of pyrolytic graphite electrode and preparation of GNPs using cefazolin as a template in aqueous solution was proposed.
Yan Zhang, Shaohong Wei, Songtao Chen
doaj   +1 more source