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Том 26, № 3 (2017)
- Год: 2017
- Статей: 6
- URL: https://journals.rcsi.science/1061-3862/issue/view/12284
Article
Combustion and materials synthesis
Аннотация
The current issue of International Journal of Self-Propagating High-Temperature Synthesis is dedicated to the 50th anniversary of the ‘solid flame’ discovery, by A.G. Merzhanov, V.M. Shkiro, and I.P. Borovinskaya in 1967, which led to the development of rapid synthesis methods based on exothermic reactions in condensed systems. Today, Self-propagating High-temperature Synthesis (SHS) and Solution Combustion Synthesis (SCS) are very popular preparation techniques for numerous simple and complex compounds including oxygen-free ceramics, oxides, chalcogenides, metals, alloys, and composites in the form of nanoscale powders, porous items, thin films, etc. The present issue consists of brief topical review articles by active researchers in the field. The articles cover principles and some recent developments in SHS and SCS.
143-144
Kinetics of SHS reactions: A review
Аннотация
The current state of chemical kinetics for self-propagating high-temperature non-catalytic reactions has been reviewed for results over the past 50 years. Five different characterization techniques are primarily considered: differential thermal analysis (DTA), electrothermal explosion (ETE), electrothermography (ET), combustion velocity/temperature analyses (Merzhanov–Khaikin and Boddington–Laye approaches), and other advanced in-situ diagnostics, including time-resolved X-ray diffraction (TRXRD). Based on the summary of results thus far, recommendations are given for the future of SHS kinetic research.
145-165
Solution combustion synthesis for preparation of structured catalysts: A mini-review on process intensification for energy applications and pollution control
Аннотация
Solution combustion synthesis (SCS) is a preparation technique that can be used to synthesize a variety of inorganic nanomaterials and structured catalysts. It is based on a self-propagating exothermic redox reaction between organic salts and a fuel mixed together in an aqueous solution, which results in the formation of nanocrystalline and highly pure solid nanomaterials. SCS can be considered as an attractive synthesis method for catalysts due to the simple nature of the synthetic route and short reaction times. The process is easily scaled up to any kind of application which makes it economically attractive. This mini-review provides a short overview on the synthesis of structured catalysts by SCS and their recent utilization for energy applications and pollution control.
166-186
Solution-combustion synthesis of nanomaterials for lithium storage
Аннотация
Solution-combustion synthesis (SCS) is an effective method for mass production of electrode materials, in particular metal oxides, for electrochemical energy storage owing to its simplicity and energy/time effectiveness. The present mini-review aims at summarizing the recent data on the SCS of nano-structured anode and cathode materials for lithium-ion batteries. The advantages of electrode materials prepared by SCS are discussed in detail, with special emphasis on morphology control during the SCS process.
187-198
Combustion synthesis and the electric field: A review
Аннотация
This brief review discusses principles and some latest developments in electrically activated combustion synthesis. Processes discussed include field-activated combustion synthesis (FACS), field-activated pressure-assisted synthesis (FAPAS), reactive spark plasma sintering (R-SPS), electrothermal explosion (ETE), and electrostatic-field-activated combustion synthesis (EFACS). These processes have demonstrated clear benefits to the process of combustion synthesis through the application of electric field. Although a significant amount of works have been published in the area, there still remain some directions within the field where sustained research may provide even more scientific reward.
199-209
SHS as a new approach to synthesizing hierarchical inorganic structures
Аннотация
We applied SHS method (also known as combustion synthesis) to create hierarchically structured porous hollow carbon nanospheres, mesoporous carbon nanosheets, and AlN stellar and multi-storey dendrite microcrystals. Our method utilizes the heat of combustion reaction for generating liquid and gaseous reactive species that promote the nucleation and growth of hierarchical microstructures. The studies on the electrochemical characteristics of carbon hierarchical structures revealed that these materials have potential application to fabrication of functional materials for use in supercapacitors and Li–S battery electrodes.
210-220