Results 51 to 60 of about 99 (97)

Sulfonated Polystyrene/Polybenzimidazole Bilayer Membranes for Vanadium Redox Flow Batteries

Advanced Energy Materials, EarlyView.
PBI‐coated sulfonated polystyrene membranes are prepared, and the performance of the various possible assemblies of two such membranes is tested. A 52 µm thick PSSP assembly can be fabricated with a materials cost of just 1.84 USD m−2, and shows an energy efficiency of 89.7% at 80 mA cm−2.
Muhammad Mara Ikhsan, Saleem Abbas, Xuan Huy Do, Heung Yong Ha, Kobra Azizi, Dirk Henkensmeier   +5 more
wiley   +1 more source

Impact of Transition Metals and Electrocatalyst Layer Thickness on the Pt‐Based Cathodes of Proton Exchange Membrane Fuel Cells – Do Multimetallic Electrocatalysts Necessarily Yield an Improved Performance?

Advanced Energy Materials, EarlyView.
Nonnoble transition‐metals (TMs) in PtCuNi/C catalysts have a dual influence in proton‐exchange membrane fuel cell cathode catalyst layer. While TMs act as a “sacrificial component” of PtCuNi/C, inhibiting Pt dissolution from the PtMx nanoparticles bearing the active sites, they promote the formation of separate catalysts and ionomer domains in the ...
Ricardo Sgarbi, William Ait Idir, Quentin Labarde, Camille Jourdin, Vincent Martin, Daniele Andreetta, Peizhe Wu, Enrico Negro, Fabio Bassetto, Julia Mainka, Jérôme Dillet, Clémence Marty, Fabrice Micoud, Vito Di Noto, Pawel Kulesza, Olivier Lottin, Marian Chatenet   +16 more
wiley   +1 more source

Confining Surface Oxygen Redox in Double Perovskites for Enhanced Oxygen Evolution Reaction Activity and Stability

Advanced Energy Materials, EarlyView.
The double perovskite BaSrNiWO6 is developed as an oxygen evolution reaction catalyst. B‐site W6+ dissolution drives in situ reconstruction of the surface to a disordered, NiO‐like layer. Consequently, local oxygen species are activated for a surface lattice oxygen evolution mechanism (sLOEM).
Natasha Hales, Jinzhen Huang, Benjamin Heckscher Sjølin, Alvaro Garcia‐Padilla, Camelia Nicoleta Borca, Thomas Huthwelker, Ivano E. Castelli, Radim Skoupy, Adam H. Clark, Michal Andrzejewski, Nicola Casati, Thomas J. Schmidt, Emiliana Fabbri   +12 more
wiley   +1 more source

Degradation of NiMo Catalyst Under Intermittent Operation of Anion Exchange Membrane Water Electrolyzer and its Mitigation by Carbon Encapsulation

Advanced Energy Materials, EarlyView.
Herein, by employing a reference electrode, the durability of anion exchange membrane water electrolyzer (AEMWE) under intermittent condition is demonstrated to be governed by the stability of the cathode catalyst. By encapsulating NiMo catalyst with carbon shells, the oxidation‐induced irreversible transformation to inactive hydroxide is prevented ...
Sun Seo Jeon, Yunji Choi, Jae Won Lee, Robert Haaring, Wonjae Lee, Hyeseong Jeon, Jeonghyun Nam, Eunchong Lee, Seungwoo Lee, Minjoon Kim, Yeon Sik Jung, Yousung Jung, Yun Jeong Hwang, Hyunjoo Lee   +13 more
wiley   +1 more source

Zero‐Valent Iron Nanoparticles Supported on Si/N Codoped Carbon Materials: From Biomass to Oxygen Reduction Electrocatalysts and Supercapacitors

Advanced Energy and Sustainability Research, EarlyView.
Zero‐valent iron nanoparticles on Si/N codoped carbon support are prepared from hydrothermal carbonization and pyrolysis of biomass, silica, and iron salt. The Fe nanoparticles are evenly distributed on the support and encapsulated in graphitic or iron oxide shells.
Lilian Moumaneix, Oktay Safarov, Tanja Kallio   +2 more
wiley   +1 more source

Sustainable and Simple Water‐Induced Separation of Ionic Liquid Mixtures

Angewandte Chemie, EarlyView.
The cover image illustrates an innovative method for recovering ionic liquids (ILs) from their mixtures. This approach enables the recovery of over 99% of the IL by simply adding water–abundant, and safe solvent–under mild conditions, all while preserving the integrity of the ILs.
Beatriz R. de Moraes, Agilio Pádua, Rômulo A. Ando, Margarida Costa Gomes   +3 more
wiley   +2 more sources

Hydrogel‐Based Smart Materials for Wound Healing and Sensing

Aggregate, EarlyView.
The graphical abstract illustrates the role of hydrogel‐based flexible materials in advancing biomedical applications, including wound healing, point‐of‐care diagnostics, smart patches, and wearable devices. Hydrogels are particularly promising in modern wound care due to their high‐water content, flexibility, and biocompatibility.
Thi Kim Ngan Duong, Thi Thuy Truong, Thi Nhat Linh Phan, Thi Xuan Nguyen, Vu Hoang Minh Doan, Truong Tien Vo, Jaeyeop Choi, Umapada Pal, Prodyut Dhar, Byeongil Lee, Junghwan Oh, Sudip Mondal   +11 more
wiley   +1 more source

Asymmetric Aziridination of Allylic Carbamates Using Ion‐Paired Rhodium Complexes and Extrapolation to C─H Amination of Phenethyl Carbamates

Angewandte Chemie, EarlyView.
Aziridination of alkenes is an important route to chiral nitrogen‐containing building blocks. We report that carbamate‐functionalized allylic alcohols undergo highly enantioselective aziridination using achiral dimeric Rh complexes ion‐paired with cinchona alkaloid‐derived chiral cations.
Arthur R. Lit, Shotaro Takano, Christian Zachau, Ioana Băltărețu, Robert J. Phipps   +4 more
wiley   +2 more sources

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

A Robotic Hand with Soft Transmission Systems for Automated Operations of Computer Mouse

Advanced Intelligent Systems, EarlyView.
This article introduces a soft robotic hand designed to automate computer mouse operations. Inspired by the water vascular system, the bellows‐enclosed soft transmission system is proposed. This system can handle typical office and gaming tasks using vision and speech commands, holding the potential for applications in office scenes and gaming hardware
Yiming He, Dengfeng Yan, Kaiyuan Jin, Bin Fang, Shuguang Li   +4 more
wiley   +1 more source