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Chemistry (ISSN 2624-8549) is a peer-reviewed open access journal of chemistry published quarterly online by MDPI.
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Recent Progress in Two-Dimensional Nanomaterials for Laser Protection
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Chemistry 2019, 1(1), 17-43; https://doi.org/10.3390/chemistry1010004 - 16 January 2019
Abstract
The Nobel Prize in Physics 2018, “For groundbreaking inventions in the field of laser physics”, went to Arthur Ashkin and Gérard Mourou and Donna Strickland. Their inventions have revolutionized laser physics and greatly promoted the development of laser instruments, which have penetrated into
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The Nobel Prize in Physics 2018, “For groundbreaking inventions in the field of laser physics”, went to Arthur Ashkin and Gérard Mourou and Donna Strickland. Their inventions have revolutionized laser physics and greatly promoted the development of laser instruments, which have penetrated into many aspects of people’s daily lives. However, for the purpose of protecting human eyes or optical instruments from being damaged by both pulsed and continuous wave laser radiation, the research on laser protective materials is of particular significance. Due to the intriguing and outstanding physical, chemical, and structural properties, two-dimensional (2D) nanomaterials have been extensively studied as optical limiting (OL) materials owing to their broadband nonlinear optical (NLO) response and fast carrier relaxation dynamics that are important for reducing the laser intensity. This review systematically describes the OL mechanisms and the recent progress in 2D nanomaterials for laser protection.
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Advantages of Yolk Shell Catalysts for the DRM: A Comparison of Ni/[email protected]2 vs. Ni/CeO2 and Ni/Al2O3
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Chemistry 2019, 1(1), 3-16; https://doi.org/10.3390/chemistry1010003 - 28 December 2018
Abstract
Encapsulation of metal nanoparticles is a leading technique used to inhibit the main deactivation mechanisms in dry reforming of methane reaction (DRM): Carbon formation and Sintering. Ni catalysts (15%) supported on alumina (Al2O3) and ceria (CeO2) have
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Encapsulation of metal nanoparticles is a leading technique used to inhibit the main deactivation mechanisms in dry reforming of methane reaction (DRM): Carbon formation and Sintering. Ni catalysts (15%) supported on alumina (Al2O3) and ceria (CeO2) have shown they are no exception to this analysis. The alumina supported catalysts experienced graphitic carbonaceous deposits, whilst the ceria showed considerable sintering over 15 h of DRM reaction. The effect of encapsulation compared to that of the performance of uncoated catalysts for DRM reaction has been examined at different temperatures, before conducting longer stability tests. The encapsulation of Ni/ZnO cores in silica (SiO2) leads to advantageous conversion of both CO2 and CH4 at high temperatures compared to its uncoated alternatives. This work showcases the significance of the encapsulation process and its overall effects on the catalytic performance in chemical CO2 recycling via DRM.
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9 January 2019
Open Access Agreement between the Austrian Academic Library Consortium (KEMÖ), the Austrian Science Fund (FWF), and MDPI
Open Access Agreement between the Austrian Academic Library Consortium (KEMÖ), the Austrian Science Fund (FWF), and MDPI
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CO2, a Carbon Source for Chemicals and Fuels
Guest Editors: José Odriozola, Luis F. Bobadilla, Oscar H. LagunaDeadline: 31 March 2019
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