Results 111 to 120 of about 1,006,339 (254)

Decoupling the Size and Loading Effects in Silver Nanoparticles for Efficient Paired Carbon Dioxide and Formaldehyde Electrolysis

Advanced Functional Materials, EarlyView.
We investigate size‐dependent CO selectivity on Ag nanoparticles, where optimized Ag loading achieves nearly 100% Faradaic Efficiency for CO at −100 mA·cm−2. In situ SERS and XPS reveal the crucial role of optimized loading in catalytic performance. The Ag/C catalyst further exhibits bifunctional activity, enabling efficient electrolysis of CO2 and ...
Venkata S. R. K. Tandava, Clara Große, Debabrata Bagchi, Zhenye Zhu, Suptish Ghosh, J. Niklas Hausmann, Carsten Walter, Rosario Suarez Anzorena, Catalina Elena Jimenez, Yasmin Lucero Cobos‐Becerra, Jack C. Q. Fletcher, Tobias Sontheimer, Michael Schwarze, Holger Dau, Matthias Driess, Marcus Bär, Prashanth W. Menezes   +16 more
wiley   +1 more source

Carbon Material-Reinforced Polymer Composites for Bipolar Plates in Polymer Electrolyte Membrane Fuel Cells

Bipolar plates (BPs) are one of the most important components of polymer electrolyte membrane fuel cells (PEMFCs) because of their important role in gas and water management, electrical performance, and mechanical stability.
Alejandro Gomez-Sanchez, Heriberto Cruz-Martínez, Víctor A. Franco-Luján, Dora I. Medina, Hilda M. Alfaro-López, Laura Hernández-Sánchez   +5 more
core   +1 more source

Fluorine-free gel polymer electrolyte for lithium oxide-rich solid electrolyte interphase and stable Li metal batteries

Nature Communications
The development of stable solid-electrolyte interphases (SEI) represents a fundamental challenge for Li-metal batteries. Although fluorinated reagents improve cycling performance through LiF-rich SEI formation, their associated costs and environmental ...
Weijian Xu, Lingxi Zhou, Songxin Lu, Jiahui He, Yongbin Xu, Lei Tian   +5 more
doaj   +1 more source

Architecting precise and ultrathin nanolayer interface on 4.5V LiCoO2 cathode to realize poly (ethylene oxide) cycling stability

Next Materials
The poly (ethylene oxide) (PEO) solid polymer electrolytes suffer from narrow electrochemical stability window and cannot match high voltage lithium cobalt oxide (LCO) cathode.
Keding Chen, Zidong Zhang, Zelin Liu, Jin Gong, Haoyu Xiao, Li Yang, Jingchao Chai, Yun Zheng, Yuyu Li, Zhihong Liu, Ming Xie, Wei Zhang   +11 more
doaj   +1 more source

Stereometric Molecular Engineering for Ultra‐Stable Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
Stereochemical configuration of molecular additives greatly influences interfacial adsorption at the Zn surface. The optimal tilted dual‐anchored adsorption geometry of myo‐inositol constructs a water‐deficient interface and regulates the solvation structure.
Cunxin Liu, Peng Yang, Mohamed H. Helal, Jiang Zhou, Eero Kontturi   +4 more
wiley   +1 more source

Polymer-clay Nanocomposites [PDF]

, 2004
PhDPolymer-clay nanocomposites are attracting global interest principally because property enhancements are obtained at low clay particle loadings (1-5 wt%). However there is lack of fundamental understanding of such composites.
Chen, Biqiong
core   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

A numerical study on liquid water exhaust capabilities of flow channels in polymer electrolyte membrane fuel cells

, 2009
Computational fluid dynamics (CFD) simulations were conducted to study the liquid water transport behaviors in flow channels of polymer electrolyte membrane fuel cells (PEMFCs).
김현일, 남진현, 정태용, 김영규, 신동훈   +4 more
core  

A Homogeneous Hexagonal-Structured Polymer Electrolyte Framework for High-Performance Polymer-Based Lithium Batteries Applicable at Room Temperature

In polymer-based lithium batteries, polymer electrolytes (PEs) exhibit limited ionic conductivity at room temperature (25 °C). To address this issue, this paper describes a hexagonal-structure-based single-ion conducting gel polymer electrolyte (h-SICGPE)
Joonhyeon Jeon, Changseop Kim, Gyungmin Hwang, Yun, Deokhee, Kim, Changseop, Changseong Kim, Kim, Changseong, Hwang, Gyungmin, Ilhyeon Cho, Lee, Seungjin, Jeon, Joonhyeon, Kim, Suyeon, Seungjin Lee, Suyeon Kim, Cho, Ilhyeon, Deokhee Yun   +15 more
core   +1 more source