Results 81 to 90 of about 6,776 (217)

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

Advanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh, Madhusudhana M Devadiga, Santosh K. Tiwari, AS Dhaliwal, Gurpreet Singh Selopal   +4 more
wiley   +1 more source

On the expansion of renewable energies in Germany and the problems related to fluctuation in the German electricity grid

Discover Energy
The expansion of renewables energies in Germany especially in the solar and wind sector are key factors for the transformation to net zero carbon emissions. Both sources have significant seasonal fluctuations in production.
Sönke Gößling, Florian Dennewitz
doaj   +1 more source

Wood Cellulosic Membrane With Abundant Nanochannels for Stabilizing Aqueous Zn‐Ion Batteries

Advanced Functional Materials, EarlyView.
A wood‐derived cellulosic membrane separator is developed to suppress dendrite growth in aqueous zinc‐ion batteries. Its aligned nanochannels and hydroxyl‐rich surfaces enable uniform Zn2+ flux, water immobilization, and interfacial stabilization. Zn||Zn cells achieve 1920 h of cycling, Zn||Cu cells maintain 99.5% Coulombic efficiency over 1000 cycles,
Song Wei, Yunpeng Zhong, Ruwei Chen, Shanshan Jia, Hongping Dong, Zhen Zhang, Lei Li, Yiqiang Wu, Guanjie He   +8 more
wiley   +1 more source

Integration of wind farm, energy storage and demand response for optimum management of generation and carbon emission

The Journal of Engineering
The optimal operation of power systems is one of the most critical issues for operators. Optimizing the operation of power systems while accommodating the increasing penetration of RES, owing to the intermittent and variable nature of these resources ...
Kasra Shafiei, Mehrdad Tarafdar Hagh, Ali Seifi   +2 more
doaj   +1 more source

Problematic Aspects of Energy Systems with a High Penetration of Renewable Energy Sources

Energies
This article considers various aspects of the functioning of electric power systems (EPSs) with a high proportion of available renewable energy sources (RES).
Anatolijs Mahnitko, Tatjana Lomane, Inga Zicmane   +2 more
doaj   +1 more source

All‐Solution‐Processed HgTe Quantum Dot Photodetectors for Extended Short‐Wavelength Infrared Range Enhanced by Plasmonic ITO Nanocrystals

Advanced Functional Materials, EarlyView.
All‐solution‐processed, low‐cost extended short‐wavelength infrared photodetectors are realized by coupling colloidal HgTe quantum dots to plasmonic In2O3:Sn,F nanocrystals. Localized surface plasmon resonances boost and spectrally tailor light absorption between 1500 and 3000 nm, enabling responsivities above 40 A W−1.
Kseniia A. Sergeeva, Anastasiia V. Sokolova, Chenxi Guo, Yuanfei Huo, Yulia V. Kuznetsova, Ran An, Aleksandr A. Sergeev, Kam Sing Wong, Tianshuo Zhao, Andrey L. Rogach   +9 more
wiley   +1 more source

Optimal Design Of Stand Alone Hybrid PV / WTGS / Battery for Health Center Electricity System in Timor Leste

JAREE (Journal on Advanced Research in Electrical Engineering), 2018
—The use of renewable energy sources as a power plant has become an alternative option to provide electrical energy sources in a health center in Timor Leste. In this study a standalone hybrid generator system design consisting of Photovoltaic (PV), Wind
Alfredo Gusmao
doaj  

Atomic Layer Deposition Processes: Versatile Platforms for Engineering ZnO‐Chitosan Biointerfaces

Advanced Healthcare Materials, EarlyView.
Vapour phase metalation (VPM), multiplied pulsed vapour phase infiltration (MPI), and O2 plasma‑enhanced atomic layer deposition (PEALD) tailor Zn–chitosan (Zn‑CS) films. PEALD improves wettability and biocompatibility. MPI enhances semiconductor behavior. Antiseptic selectivity: VPM → E. coli; MPI → H. pylori.
Mabel Moreno, Anjana Devi, David Zanders, Miryam Arredondo, Davide Mariotti, Ruairi McGlynn, Sindy Devis, Simón Guerrero, Eglantina Benavente, Matias Alegría, Yusser Olguin, Lorena Lobos‐Gonzalez, Kevin Guzmán, Elizabeth Rivas‐Yañez, Paula Solar, Valentin Cepus, Michael Krause, Luis Velásquez   +17 more
wiley   +1 more source

Modeling of Battery Storage of Photovoltaic Power Plants Using Machine Learning Methods

Energies
The massive integration of variable renewable energy sources (RESs) poses the gradual necessity for new power system architectures with wide implementation of distributed battery energy storage systems (BESSs), which support power system stability ...
Rad Stanev, Tanyo Tanev, Venizelos Efthymiou, Chrysanthos Charalambous   +3 more
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source