Results 41 to 50 of about 11,051 (289)

Effects of machine learning models and spatial resolution on land cover classification accuracy in Dali County, Shaanxi, China

Nano Research
The alkaline anion exchange membrane (AEM) water electrolysis technology has advantages of low cost, high current density, and fast dynamic response, and it has attracted more attention from researchers in the last few years.
Qichen Lu, Xupeng Yan, Weiqi Guo, Guangshan Li, Jinyi Wang, Nan Jiang, Xiaolong Wang, Teer Ba, Peng Liu, Jianing Zhou, Ju Wang, Lin Hu, Tianyi Zhou, Ruling Huang, Bo Hu, Kexin Zhang, Zhibo Ren   +16 more
doaj   +1 more source

Stable overall water splitting in an asymmetric acid/alkaline electrolyzer comprising a bipolar membrane sandwiched by bifunctional cobalt‐nickel phosphide nanowire electrodes

Carbon Energy, 2020
Water splitting has been proposed to be a promising approach to producing clean hydrogen fuel. The two half‐reactions of water splitting, that is, the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), take place kinetically fast in ...
Junyuan Xu, Isilda Amorim, Yue Li, Junjie Li, Zhipeng Yu, Bingsen Zhang, Ana Araujo, Nan Zhang, Lifeng Liu   +8 more
doaj   +1 more source

Hydrogen Production System Using Alkaline Water Electrolysis Adapting to Fast Fluctuating Photovoltaic Power

Energies, 2023
Using photovoltaic (PV) energy to produce hydrogen through water electrolysis is an environmentally friendly approach that results in no contamination, making hydrogen a completely clean energy source.
Xing Cao, Jingang Wang, Pengcheng Zhao, Haiting Xia, Yun Li, Liming Sun, Wei He   +6 more
doaj   +1 more source

Non-Precious Electrodes for Practical Alkaline Water Electrolysis [PDF]

Materials, 2019
Water electrolysis is a promising approach to hydrogen production from renewable energy sources. Alkaline water electrolyzers allow using non-noble and low-cost materials. An analysis of common assumptions and experimental conditions (low concentrations, low temperature, low current densities, and short-term experiments) found in the literature is ...
Alejandro N. Colli, Hubert H. Girault, Alberto Battistel   +2 more
openaire   +4 more sources

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

Advanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner, Peter Förster, Alexander Limper, Anselm Brodersen, Matthias Wessling, John Linkhorst   +5 more
wiley   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

Analysis of the effect of surface wettability on hydrogen evolution reaction in water electrolysis using micro-patterned electrodes

Electrochemistry Communications, 2019
The hydrogen evolution reaction (HER) was investigated using Ni catalytic electrodes with micro-patterned surfaces. The present aim was to correlate HER efficiency with the surface wettability of Ni cathodes produced with different micropatterns. Regular
Tatsuki Fujimura, Wakana Hikima, Yasuhiro Fukunaka, Takayuki Homma   +3 more
doaj   +1 more source

A high-performance capillary-fed electrolysis cell promises more cost-competitive renewable hydrogen

Nature Communications, 2022
Renewable, or green, hydrogen will play a critical role in the decarbonisation of hard-to-abate sectors and will therefore be important in limiting global warming. However, renewable hydrogen is not cost-competitive with fossil fuels, due to the moderate
Aaron Hodges, Anh Linh Hoang, George Tsekouras, Klaudia Wagner, Chong-Yong Lee, Gerhard F. Swiegers, Gordon G. Wallace   +6 more
doaj   +1 more source

Benchmarking and crossover in Alkaline Water Electrolysis

, 2023
see ...
Lohmann-Richters, Felix, Ritz, Lukas, Karacan, Cinar, Pape, Sharon, Müller, Martin   +4 more
openaire   +2 more sources

Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition

Advanced Engineering Materials, EarlyView.
AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley   +1 more source