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Advanced Material Green Energy Technologies
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Advanced Material Green Energy Technologies

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Physics General".

Deadline for manuscript submissions: closed (31 January 2021) | Viewed by 3831

Special Issue Editor

Prof. Dr. Alberto Rivera-Calzada

E-Mail Website
Guest Editor
Department of Materials Physics, Universidad Complutense de Madrid, 28040 Madrid, Spain
Interests: applied physics; materials physics; transition metal oxides; interfaces; ionic transport; solid electrolytes; ionic liquids; impedance spectroscopy

Special Issue Information

Dear Colleagues,

The beneficial rapid evolution of our civilization during last century came together with side effects. Global demand for energy is steeply raising due to the continuous increase in world population and the intense use of the energy nowadays associated to industry, transport, entertainment, etc. Historical energy production is based on the burning of fossil fuels, which emit carbon dioxide and other pollutant gases, affecting the equilibrium of our home planet. The tip of the iceberg of this imbalance is global warming; average surface temperatures have increased faster in the last 40 years than ever before, because of human related activities. Each day more people realize the importance to live on our planet in a sustainable way, and environmental concerns are becoming a strong force. A shift towards renewable energy technologies is gaining momentum, so that the future energy model will be overwhelmingly clean.

In this framework, scientific research will drive the unavoidable change of paradigm. Specifically, advanced materials and the establishment of new or improved technologies for clean energy processes are to play a leading role. This Special Issue is dedicated to compile recent results, findings, new insights and reviews of advanced materials and technologies that are involved in the green energy production. A broad scope is intended, therefore any topic related to renewable technologies that generate energy without the pollutants emission of fossil fuels is welcome.

Prof. Dr. Alberto Rivera-Calzada
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Renewable energy
  • Materials for clean energy
  • Sustainable energy applications
  • Environmental materials
  • Solar energy
  • Wind energy
  • Biomass and biofuel
  • Geothermal energy
  • Hydropower

Published Papers (2 papers)

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Research

16 pages, 4977 KiB  
Article
The Simulation of Different Combustion Stages of Micron-sized Aluminum Particles
by Zejun Hu, Tao Yang, Zhixun Xia, Likun Ma, Mingtai Li and Yunchao Feng
Appl. Sci. 2021, 11(4), 1774; https://doi.org/10.3390/app11041774 - 17 Feb 2021
Cited by 6 | Viewed by 2099
Abstract
In this study, a quasi-steady combustion model of an aluminum particle is established, which is more accurate to simulate the physical combustion process. Detailed gas-phase reaction mechanism and surface reaction mechanism are considered. Moreover, the particle temperature is not constant in this work, [...] Read more.
In this study, a quasi-steady combustion model of an aluminum particle is established, which is more accurate to simulate the physical combustion process. Detailed gas-phase reaction mechanism and surface reaction mechanism are considered. Moreover, the particle temperature is not constant in this work, which is calculated in different combustion stages. The judgement standard of each combustion stage is from observational data in the experiment and the simulation results of combustion durations of each stage, and distribution of ambient temperature and gas-phase species profiles are in good agreement with experimental results. The calculation results show that in the first stage, burning rate of the particle is the fastest, and in the second stage, particle temperature can drop to more than 100 K below the boiling point for the large particles, which is slightly below the boiling point for small ones. As the combustion stage changes, Da number is going to keep going down, which will lead to the transition of combustion method from diffusion-limited control to kinetic-limited control for an aluminum particle. Full article
(This article belongs to the Special Issue Advanced Material Green Energy Technologies)
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12 pages, 4635 KiB  
Article
Microstructure and Photothermal Conversion Performance of Ti/(Mo-TiAlN)/(Mo-TiAlON)/Al2O3 Selective Absorbing Film for Non-Vacuum High-Temperature Applications
by Haibin Geng, Hanzhe Ye, Xingliang Chen and Sibin Du
Appl. Sci. 2021, 11(1), 124; https://doi.org/10.3390/app11010124 - 24 Dec 2020
Viewed by 1351
Abstract
This paper aims to clarify the phase composition in each sub-layer of tandem absorber TiMoAlON film and verify its thermal stability. The deposited multilayer Ti/(Mo-TiAlN)/(Mo-TiAlON)/Al2O3 films include an infrared reflectance layer, light interference absorptive layers with different metal doping amounts, [...] Read more.
This paper aims to clarify the phase composition in each sub-layer of tandem absorber TiMoAlON film and verify its thermal stability. The deposited multilayer Ti/(Mo-TiAlN)/(Mo-TiAlON)/Al2O3 films include an infrared reflectance layer, light interference absorptive layers with different metal doping amounts, and an anti-reflectance layer. The layer thicknesses of Ti, Mo-TiAlN, Mo-TiAlON, and Al2O3 are 100, 300, 200, and 80 nm, respectively. Al content increases to 12 at.% and the ratio of N/O is nearly 0.1, which means nitride continuously changes to oxide. According to X-ray Diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) results, the diffraction peak that appears at 2θ = 40° demonstrates that Mo element aggregates in the substitutional solid solution (Ti,Al)(O,N) columnar grain. TiMoAlON films have low reflectivity in the spectrum range of 300–900 nm. When Al content is more than 10 at.%, absorptivity is almost in the spectrum range from visible to infrared, but absorptivity decreases in the ultraviolet spectrum range. When Al content is increased to 12 at.%, absorptivity α decreases by 0.05 in the experimental conditions. After baking in atmosphere at 500 °C for 8 h, the film has the highest absorptivity when doped with 2 at.% Mo. In the visible-light range, α = 0.97, and in the whole ultraviolet-visible-light near-infrared spectrum range, α = 0.94, and emissivity ε = 0.02 at room temperature and ε = 0.10 at 500 °C. Full article
(This article belongs to the Special Issue Advanced Material Green Energy Technologies)
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