Results 61 to 70 of about 150,264 (296)

A 3D‐Printed Electrochemical Water Splitting Cell

Advanced Materials Technologies, 2019
Abstract3D printing offers an attractive approach in fabricating complex designs across a wide range of materials to meet the functional requirements of targeted applications. In this study, the surface‐patterned metallic electrodes are printed and integrated with custom built reaction vessels produced via a polymer‐based 3D printing approach to create
Chong‐Yong Lee, Adam C. Taylor, Stephen Beirne, Gordon G. Wallace   +3 more
openaire   +3 more sources

Dual‐Atom Dopants Activated Ruthenium Single‐Atom Alloy Boosting Hydrogen Evolution Electrocatalysis in Proton Exchange Membrane Water Electrolyzer

Advanced Functional Materials, EarlyView.
Ni1‐Bi1 dual‐atom dopants are achieved for activating Ru lattices without blocking noble atoms. This model exhibits an ultralow overpotential of 11.4 mV and superb stability at 10 mA cm−2 toward hydrogen evolution reaction, enabling a proton exchange membrane water electrolyzer that needs only 2.233 V to reach 3.0 A cm−2 and operates stably at 1.0 A cm−
Shuiping Luo, Zhichao Yang, Xinyi Cai, Peiling Hu, Lei Xie, Junhao Qiu, Wen Chen, Tianou He, Yong Li, Tangting Li, Yuehan Li, Hong Zhu, Fenghao Jiang, Ke Liu, Jinliang Zhu, Shao‐Qing Liu, Xian‐Zhu Fu, Jing‐Li Luo   +17 more
wiley   +1 more source

Recent Advances in 1D Electrospun Nanocatalysts for Electrochemical Water Splitting

Small Structures, 2020
Electrochemical water splitting, as a promising sustainable‐energy technology, has been limited by its slow kinetics and large overpotential. This shortcoming necessitates the design of 1D nanocatalysts with large surface area, high electronic ...
Longcheng Zhang, Haitao Zhao, Siran Xu, Qian Liu, Tingshuai Li, Yonglan Luo, Shuyan Gao, Xifeng Shi, Abdullah M. Asiri, Xuping Sun   +9 more
semanticscholar   +1 more source

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

Advanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng, Chunyan Xiang, Wenbiao Zhang, Dahai Zeng, Bing Du, Bao Zhong, Yue Jiang, Damien Voiry, Qingsheng Gao   +8 more
wiley   +1 more source

Photo-Electrochemical Production of H₂ Using Solar Energy

Chemical Engineering Transactions, 2014
Ti | SnIV-Fe2O3 photo-anodes are implemented in a photo-electrochemical reactor for photo-assisted splitting of water into hydrogen and oxygen. Attention is focused on the issues concerning electrode scale-up with the aim of addressing the present need ...
A. Hankin, G. Kelsall, C.K. Ong, F. Petter   +3 more
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Mechanistic Insights into a Synergistic FeOx/Fe‐N4 System for Practical Nitrate Abatement with Value‐Added Ammonia Recovery

Advanced Functional Materials, EarlyView.
This work provides a novel interpretation of the nitrate reduction mechanism on iron oxides (FeOx) by employing constant‐potential density functional calculations and reports the design and synthesis of a robust and high‐performance Fe3O4/Fe‐N4‐C catalyst with remarkable Faradaic efficiency, current density, and stability under practical reaction ...
Qiang Zhou, Hongzhi Liu, Shenglin Liu, Yuwei Liu, Mamiko Nakabayashi, Yunlong Xie, Naoya Shibata, Feng Gong, Jean‐Jacques Delaunay   +8 more
wiley   +1 more source

Nanostructured Electrochemical Devices for Sensing, Energy Conversion and Storage

Chemical Engineering Transactions, 2016
Nanostructured materials are attracting growing interest for improving performance of devices and systems of large technological interest. In this work, the principal results about the use of nanostructured materials in the field of electrochemical ...
C. Sunseri, C. Cocchiara, F. Ganci, A. Moncada, R.L. Oliveri, B. Patella, S. Piazza, R. Inguanta   +7 more
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

NiO@conducting polymer electrocatalyst for hydrazine-assisted oxygen evolution reaction through water splitting

Scientific Reports
The energetic suitability of electrochemical water splitting is hindered by the sluggish kinetics of oxygen evolution reaction (OER). The electrochemical oxidation of hydrazine (HyzOR) preceding OER is a straightforward approach to generate H2 with lower
Ekram H. El-Ads, Moshira M. Khalil, Mahmoud A. Abd El-Ghaffar, Ahmed Galal   +3 more
doaj   +1 more source