New Horizons in Experimental Synthesis and Characterization of Advanced Metallic Nanomaterials and Nanocomposites for Energy Storage and Conversion

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 1485

Special Issue Editor

School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Interests: metal-based nanomaterials; metal-based nanocomposites; metal batteries; electrocatalysis; advanced characterization techniques
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Special Issue Information

Dear Colleagues,

Ever-increasing environmental problems and energy challenges call for the urgent utilization of green, efficient, and sustainable energy production to promote the development of new technologies associated with energy storage and conversion. The past decade has witnessed the rapid and widespread development of metal-based energy conversion and storage technologies, such as Li/Na/K/Zn/Mg/Al metal and metal-air batteries, solar cells, hydrogen production, etc. Meanwhile, with the upsurge in electronic products, smart devices, and electric vehicles, both academic and industrial communities are devoting increasing efforts to designing and manufacturing more advanced energy-related devices, modules, and power source systems with high energy density, high power density, high capacity, long life cycle, and high security. However, the development of advanced power sources relies heavily on advances in material chemistry innovation. Exploring new metallic electrode materials with high performance is highly desirable to satisfy widespread energy storage/conversion applications.

The rapid development of materials science and nanotechnology has led to significant advances in understanding the controllable synthesis, mechanisms, and structure–performance relationships of metallic electrode materials, which have inspired this Research Topic. We cordially invite investigators to contribute original research articles and reviews that will stimulate further research activities in this area and improve our understanding of the key scientific and technological problems in advanced metallic nanomaterials and nanocomposites for energy storage/conversion. In this Special Issue, we welcome articles that focus on describing advanced materials for energy storage devices (Li/Na/K/Zn/Mg/Al metal batteries, metal-air batteries, supercapacitors) and energy conversion (solar cells, fuel cells).

Dr. Yong Liu
Guest Editor

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Keywords

  • metallic nanomaterials and nanocomposites
  • metals and alloys
  • metal properties
  • experimental synthesis
  • advanced characterization methods
  • energy storage technology
  • energy conversion technology

Published Papers (1 paper)

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Research

15 pages, 15324 KiB  
Article
Improved Discharge Performance of AZ72-0.05La Alloy Anode via Refining Mg17Al12 Phase
by Junqing Guo, Bo Wang and Shizhong An
Metals 2024, 14(3), 344; https://doi.org/10.3390/met14030344 - 17 Mar 2024
Viewed by 846
Abstract
The morphology of phases in magnesium alloys is vitally important for their performance. It is found that improved discharge performance is achieved in AZ72-0.05La alloy via a refining Mg17Al12 phase by means of hot rolling. Before rolling, as-cast AZ72-0.05La alloy [...] Read more.
The morphology of phases in magnesium alloys is vitally important for their performance. It is found that improved discharge performance is achieved in AZ72-0.05La alloy via a refining Mg17Al12 phase by means of hot rolling. Before rolling, as-cast AZ72-0.05La alloy has a relatively coarse and strip-like Mg17Al12 phase. After rolling, the Mg17Al12 phase becomes much finer, showing a granulated shape. Due to the refinement of the Mg17Al12 phase, the discharge voltage and energy density of an Mg-air battery with as-rolled AZ72-0.05La alloy as the anode increases by 6% and 3% under a discharge current density of 20 mA·cm−2 in a 3.5% NaCl solution, respectively. The corrosion rate of the as-rolled AZ72-0.05La alloy is slightly larger than the as-cast AZ72-0.05La alloy, but still much lower than as-cast AZ72 alloy. The as-rolled AZ72-0.05La alloy possesses a discharge voltage of 0.74 V and an energy density of 918 mWh·g−1 under a discharge current density of 20 mA·cm−2, and a relatively low corrosion rate of 0.51 mg·cm−2·h−1, demonstrating good overall discharge performance. This work provides a method for improving the discharge performance of Mg-air batteries. Full article
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