Results 131 to 140 of about 1,632,952 (351)

Nano-Structural Ni Matrix Films Synthesized by Electrochemical/Chemical Composite Depositions

, 2014
In this study, the chemical deposition was introduced into the electrochemical deposition system to tailor the micro-structures of Ni matrix films. The structures and micro-hardness of films were characterized by transmission electron microscopy and nano-
Zhang, Yingxin, Zeng, Zhixiang
core  

Balancing Hydrophobicity and Hydrophilicity: Dual Filler‐Engineered Proton Exchange Membranes for Durable, High‐Power Fuel Cells

Advanced Functional Materials, EarlyView.
Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho, Yunseong Ji, Minkyu Choi, Junsu Kim, Yejin Kim, Su Jeong Lee, Wooyoung Choi, Choong Hoo Lee, Ju Yeon Kim, Ohchan Kwon, Hanim Kim, Du Yeol Ryu, Ki Chul Kim, Dae Woo Kim   +13 more
wiley   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Evaluation of Several Carbon-Supported Nanostructured Ni-Doped Manganese Oxide Materials for the Electrochemical Reduction of Oxygen

, 2011
Physical and electrochemical properties of nanostructured Ni-doped manganese oxides (MnO(x)) catalysts supported on different carbon powder substrates were investigated so as to characterize any carbon substrate effect toward the oxygen reduction ...
GARCIA, Amanda C., POINSIGNON, Christiane, CHATENET, Marian, TICIANELLI, Edson A., Christiane Poinsignon, HERRERA, Alberto Diaz, Marian Chatenet, Alberto Diaz Herrera, Edson A. Ticianelli, Amanda C. Garcia   +9 more
core   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

Advanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari, Jeppe Don, Lasse A. N. Pedersen, John Noee, Rassoul Tabassian   +4 more
wiley   +1 more source

Perspectives for electrochemical capacitors and related devices

Nature Materials, 2020
P. Simon, Y. Gogotsi
semanticscholar   +1 more source

Electrochemical Reduction Behavior of Soluble CaTiO3 in Na3AlF6-AlF3 Melt for the Preparation of Metal Titanium

, 2017
Direct preparation of metal titanium from soluble CaTiO3 in the Na3AlF6-AlF3 melt by electrolysis was confirmed, providing a short route for the high value utilization of CaTiO3 concentrates obtained from the titanium bearing blast furnace slag.
Mingyong Wang, Zhi Wang, Gong, Xuzhong, Dong Wang, Weng, Wei, Wang, Zhi, Wang, Dong, Wang, Mingyong, Zhancheng Guo, Wei Weng, Guo, Zhancheng, Xuzhong Gong   +11 more
core   +1 more source

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

Advanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash, Rituparna Mohanty, Jack Leber, David Nageb, Mirella Richard, Sharan Singh, Amin Reihani   +6 more
wiley   +1 more source

Battery electronification: intracell actuation and thermal management

Nature Communications
Electrochemical batteries – essential to vehicle electrification and renewable energy storage – have ever-present reaction interfaces that require compromise among power, energy, lifetime, and safety.
Ryan S. Longchamps, Shanhai Ge, Zachary J. Trdinich, Jie Liao, Chao-Yang Wang   +4 more
doaj   +1 more source