Results 91 to 100 of about 5,095 (238)

Effect of Vinylene Carbonate Electrolyte Additive on the Surface Chemistry and Pseudocapacitive Sodium-Ion Storage of TiO₂ Nanosheet Anodes

Batteries, 2020
Although titanium dioxide has gained much attention as a sodium-ion battery anode material, obtaining high specific capacity and cycling stability remains a challenge. Herein, we report significantly improved surface chemistry and pseudocapacitive Na-ion
Rudi Ruben Maça, Vinodkumar Etacheri
doaj   +1 more source

Super‐capacitive carbon materials with large micropores and rich mesopores synthesized using N, S co‐doped carbon dots as self‐templates

Responsive Materials, EarlyView.
Nitrogen‐sulfur co‐doped carbon dots are employed as self‐templates to fabricate hierarchical porous carbon material with a concentrated micropore size distribution of 1.1–1.6 nm and a high mesopore volume ratio up to 47.2%, which shows good capacity and excellent responsive ability as electrodes in electrochemical supercapacitors.
Xi‐Rong Zhang, Hao‐Wen Sun, Ling Xiao, Zhao‐Fan Wu, Huan‐Ming Xiong   +4 more
wiley   +1 more source

3D‐Printed Crosslinked Nanocellulose‐MXene Hydrogels and Aerogels with High Strength and Conductivity

Small, EarlyView.
This study presents a robust strategy for 3D printing conductive, mechanically resilient MXene–CNF composite structures using a single‐step freeze‐induced crosslinking method. The printed architectures remain stable in both wet and dry states, exhibit high electrical conductivity and mechanical strength, and demonstrate practical application in fully ...
Nuzhet Inci Kilic, Kyle Matthews, Giovanni Marco Saladino, Yury Gogotsi, Per A. Larsson, Mahiar Max Hamedi   +5 more
wiley   +1 more source

Pseudocapacitance phenomena and applications in biosensing devices

Electrochimica Acta, 2019
Abstract The concept of electrochemical capacitance comprises both double-layer grounded capacitive (non-faradaic charging) and pseudocapacitive (faradaic charging) behaviours, as has been recently demonstrated [1–3]. In this paper, we demonstrate that nanostructured compounds possessing electrochemical capacitance can be used to design suitable ...
Oliveira, Raphael M.B., Fernandes, Flávio C.B., Bueno, Paulo R.   +2 more
openaire   +2 more sources

Surface Engineering of Ti3C2Tx MXenes via Silanol Functionalization for Improved Electrochemical Performance

Small, EarlyView.
This study explores the covalent functionalization of Ti3C2Tx using 5,5′‐bis(triisopropoxysilyl)‐2,2′‐bipyridine in different solvents, revealing that only m‐xylene enables effective covalent bonding, ensuring structural stability and preventing layer swelling.
Abelardo Sánchez‐Oliva, Verónica Montes‐García, Ke Li, Kaitlyn Prenger, Xuyun Guo, Iwona Janica, Wojciech Kukułka, Adrián Tamayo, Pilar Prieto, Paolo Samorì, Valeria Nicolosi, Artur Ciesielski   +11 more
wiley   +1 more source

Nanoengineering S‑Doped TiO₂ Embedded Carbon Nanosheets for Pseudocapacitance-Enhanced Li-Ion Capacitors

, 2018
Li-ion capacitors, comprising a battery anode and a supercapacitor cathode, have been expected to bridge the gap between batteries and supercapacitors.
Libin Wang (1758748), Xianluo Hu (1418611), Xue Chen (127892), Yue Xin (110607), Yuyu Li (3939137), Huiling Yang (87939), Ting Shu (776395), Heng Li (6476)   +7 more
core   +1 more source

Correlation of electron delocalisation with pseudocapacitance in nanostructured carbon [PDF]

The unique electronic structure - partial electron delocalisation (PED) -has been for the first time correlated with pseudocapacitance in graphene-based electrode materials in this study.
Li, Junfu
core   +3 more sources

Electrochemical and Biological Evaluation of Patterned TiO2@TiC‐Nanowires for Bio‐Interface Electrode

Small, EarlyView.
This study introduces a room‐temperature process to fabricate patterned TiO2@TiC core–shell nanowires, merging the biocompatibility of TiO2‐NWs with the high conductivity of TiC. Through sputtering pressure and time modulation, the nanowires morphology and electrochemical properties are tuned, enabling enhanced capacitance, stability, and guided ...
Roaa Sait, Shofarul Wustoni, Nabeel Aslam, Camelia Florica, Andrea Diaz‐Gaxiola, Valentina‐Elena Musteata, Mohammed K. Drad, Stephen Ghandour, Georgian Melinte, Yaping Zhang, Mohammed Nejib Hedhili, Ahad Ali Syed, Menouer Saidani, Shahryar Khattak, Imed Eddine‐Gallouzi, Sahika Inal, Hala Aljawhari   +16 more
wiley   +1 more source

Pseudocapacitance of amorphous TiO2@nitrogen doped graphene composite for high rate lithium storage

, 2015
The high rate applications such as electric vehicles of the traditional lithium ion batteries (LIBs) are commonly limited by their insufficient electron conductivity and slow mass transport of lithium ions in bulk electrode materials. In order to address
Ling, Min, Lai, Chao, Qiu, Jingxia, Li, Sheng, Xue, Pan, Zhang, Shanqing   +5 more
core   +1 more source

Boosting of Redox-Active Polyimide Porous Organic Polymers with Multi-Walled Carbon Nanotubes towards Pseudocapacitive Energy Storage

Nanomaterials
Redox-active porous organic polymers (POPs) demonstrate significant potential in supercapacitors. However, their intrinsic low electrical conductivity and stacking tendencies often lead to low utilization rates of redox-active sites within their ...
Tian Zhou, Yu Yuan, Luyi Xiao, Wei Ding, Yong Wang, Li-Ping Lv   +5 more
doaj   +1 more source