Results 71 to 80 of about 4,376,110 (259)

Graphene-coated rayleigh SAW resonators for NO2 detection [PDF]

, 2014
This paper describes the development of a novel low-cost Rayleigh Surface Acoustic Wave Resonator (SAWR) device coated with a graphene layer that is capable of detecting PPM levels of NO2 in air.
Udrea, F., Torrisi, F., Cole, M., Ferrari, A.C., Thomas, S., De Luca, A., Gardner, J. W., Gardner, J.W., DE LUCA, ANDREA, Thomas, Stephen M., Cole, Marina, Ferrari, A. C., Udrea, Florin, Gardner, Julian W   +13 more
core   +1 more source

Effect of thermal and gold nanoparticles on the optoelectronic properties of graphene oxide

Scientific Reports
In this study, the effects of thermal reduction and gold nanoparticles on the optoelectronic properties of thin graphene oxide films was systematically investigated. Thermal annealing partially reduced graphene oxide to reduced graphene oxide, leading to
Majid Taheri, Zohreh Feizabadi
doaj   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

Advanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang, Xuelin Wu, Yinding Chi, Qingya Huang, Yaoye Hong, Antonio Proctor Martinez, Jingxian Wu, Bingzhi He, Cynthia Sung, Shu Yang   +9 more
wiley   +1 more source

Reduced Graphene Oxide Electrically Contacted Graphene Sensor for Highly Sensitive Nitric Oxide Detection

, 2011
We develop graphene-based devices fabricated by alternating current dielectrophoresis (ac-DEP) for highly sensitive nitric oxide (NO) gas detection. The novel device comprises the sensitive channels of palladium-decorated reduced graphene oxide (Pd-RGO ...
Gong, YP (龚佑品), Xu, JB (徐建宝), Cheng, GS (程国胜), Li, WW (李伟伟), Wu, LQ (吴丽琼), Sun, MT, Li, P (李鹏), Zhang, XM (张学敏), Rong, JZ (荣吉赞), Geng, XM (耿秀梅), Guo, YF (郭玉芬), Liu, LW (刘立伟)   +11 more
core  

Graphene-Oxide-Assisted Synthesis of Ga₂O₃ Nanosheets/Reduced Graphene Oxide Nanocomposites Anodes for Advanced Alkali-Ion Batteries

, 2018
Herein, we propose a practical way for direct preparation of gallium oxide nanosheets/reduced graphene oxide (Ga2O3 NSs/rGO) nanocomposites via oxygenic groups contained hydrophilic graphene oxide (GO) template with subsequent annealing treatment ...
Tailin Wang (3797860), Xiaopeng Hao, Lei Zhang (38117), Fuzhou Chen, Changlong Sun, Lei Zhang, Fuzhou Chen (5659496), Yongliang Shao, Mingzhi Yang (3663499), Tailin Wang, Changlong Sun (4329451), Yongzhong Wu, Minglei Sun (5333069), Minglei Sun, Yongliang Shao (1644658), Xiaopeng Hao (1644652), Yongzhong Wu (697252), Mingzhi Yang   +17 more
core   +1 more source

Anisotropic Phonon Dynamics and Directional Transport in Actinide Van der Waals Semiconductor Uranium Triselenide

Advanced Functional Materials, EarlyView.
USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll, Valentino Jadriško, Sourav Dey, Nassima Benchtaber, Kalyan Sarkar, Borna Radatović, Jan Luxa, Fedor Lipilin, Kseniia Mosina, Vojtěch Kundrát, Jakub Zalesak, Jana Vejpravová, Martin Žáček, Szymon J. Zelewski, Nikolas Antonatos, Christoph Gadermaier, José J. Baldoví, Zdeněk Sofer   +17 more
wiley   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

Advanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Nitrogen-doped reduced graphene oxide electrodes for electrochemical supercapacitors

, 2014
Herein we use Nitrogen-doped reduced Graphene Oxide (N-rGO) as the active material in supercapacitor electrodes. Building on a previous work detailing the synthesis of this material, electrodes were fabricated via spray-deposition of aqueous dispersions ...
Mendoza-Sanchez, Beatriz, O'Brien, Sean, Kumar, Nanjundan Ashok, Nicolosi, Valeria, Duesberg, Georg S., Nolan, Hugo, McEvoy, Niall   +6 more
core   +1 more source

Electrically Induced Phase Transition and Synaptic Functionality in MoTe2/Graphene Memristors

Advanced Functional Materials, EarlyView.
An electrically induced reversible 2H ↔ 1T′ phase transition is demonstrated in a vertical Au/Ti/MoTe2/graphene memristor with a laterally contacted graphene electrode. Resistive switching proceeds through a compositionally invariant amorphous/2H ↔ amorphous/1T′ transformation, in which a self‐formed amorphous MoTe2 interfacial region is proposed to ...
Chien‐Hua Wang, Mu‐Pai Lee, Jhen‐Dong Tsai, Liang‐Ying Hsieh, Jui‐Yuan Chen, Chun‐Wei Huang, Yen‐Fu Lin, Wen‐Wei Wu   +7 more
wiley   +1 more source