The electronic structure of transition metal oxides for oxygen
Abstract. Electrolysis of water to produce hydrogen and oxygen is a promising pathway for the storage of renewable energy in form of chemical fuels. The
Photoactivated cycloaddition can store solar energy for decades
A new class of molecular ''photoswitch'' – stable in the solid state – can store solar energy upon excitation with visible light. This overcomes some critical challenges of conventional energy storage structures, such as thermal stability and optical sensitivity beyond the UV spectrum – both attractive properties towards scale-up and commercialisation.
Victor Antonio de la Peña O''Shea
Solar fuels production is a cornerstone in the development of emerging sustainable energy conversion and storage technologies. Light-induced H2 production from water represents one of the most
Photochemical Energy Conversion with Artificial Molecular
Since all molecular machines are fueled by an energy source, the management of energy─for example, its storage, retrieval, and conversion between different forms─is an obvious and most desirable function. Biomolecular machines beautifully accomplish this goal at both molecular (e.g., ATP synthase) and macroscopic (e.g., muscle myosin) scales.
Solar‐Photoactivated Nanoporous Graphene Aerogel Flowers for
Supercapacitors are gaining popularity as potential energy-storage devices due to their efficiency and environmentally sustainable features. Among the extensive range of 2D materials utilized in energy storage, graphene is particularly noteworthy for its exceptional physicochemical properties.
Molecular solar thermal energy storage in photoswitch
Molecular photoswitches can be used for solar thermal energy storage by photoisomerization into high-energy, meta-stable isomers; we present a molecular
Tomasz Kowalewski
Porous nanographenes for energy storage This work relies on the use of macromolecular carbon precursors, which through the process of self-assembly and directed self-assembly organize into well-defined nanoscale morphologies. 1-5 After their nanostructure is fixed through chemical crosslinking, these materials are converted into porous
Photoactivated Artificial Molecular Motors
Photoactivated Artificial Molecular Motors JACS Au. 2023 May 8 long-range motion at the molecular scale holds great potential for the development of ground-breaking applications in energy storage and bionanotechnology. The past decade has seen tremendous development in this area, with a focus on the directional operation away
Kinetic and energetic insights into the dissipative non
The cycling rate, quantum yield, energy storage and power conversion efficiency were derived from the experimental concentrations at different incident photon flows.
Energies | Free Full-Text | Mechanistic Approach towards
Covalent organic frameworks (COFs) have unique features, including intrinsic porosity, crystallinity, and tunability, making them desirable materials for diverse applications ranging from environmental remediation to energy harvesting. Among these applications, COFs are extensively studied for their photocatalytic hydrogen evolution by
Hybrid materials based on conjugated polymers and inorganic
1 Photoactivated Processes Unit, IMDEA Energía, Ramón de la Sagra, 3, 28935, Móstoles, Madrid, Spain. marta.liras@imdea Victor lapenya@imdea . Photocatalysts provide a sustainable way to remove pollutants or store energy in the form of solar fuels by processes such as water splitting and CO2 photoreduction (artificial
Molecular solar thermal energy storage in photoswitch oligomers
Introduction. Solar energy is a viable and inexhaustible source of energy for both electricity and heat production. In this context energy storage is a major challenge due to strong daily and seasonal variations in the availability of sunlight 1.Molecular solar thermal (MOST) systems represent a promising avenue for harvesting and storing solar
Photoactivated p-Doping of Organic Interlayer Enables
S1 Supporting Information Photoactivated p-Doping of Organic Interlayer Enables Efficient Perovskite/Silicon Tandem Solar Cells Xiaopeng Zheng, ∥1,5 Jiang Liu,2∥ Tuo Liu,4∥ Erkan Aydin,2∥ Min Chen,5 Wenbo Yan,2 Michele De Bastiani,2,8 Thomas G. Allen,2 Shuai Yuan,6 Ahmad R. Kirmani,5 Kyle N. Baustert,4 Michael F. Salvador,2 Bekir Turedi,1
Recent Advances on Transition Metal
Simultaneously, the underlying mechanisms for improved electrochemical activities are highlighted. Finally, the strategic evaluation on further research directions of TMDCs in-plane activation is featured. This work would shed some light on future design trends of TMDCs-based functional materials for electrochemical energy-related
Recent Advances Towards Sustainable Materials and Processes for
Special Issue: Sustainable Materials for Solar Energy Conversion and Storage. November 18, 2021. 2102874
Experimental Evidence for Photoactivated BiVO4 Anodes with
Photoactivated bismuth vanadate (BiVO 4) anodes are highly promising candidates for solar-driven water splitting. Extant research has shown that prolonged
Photoactivated Artificial Molecular Motors
Second, the photoactivated mechanism allows for autonomous cycling, whereas the chemically driven operation requires an alternate supply of reductant and oxidant species. Third, the use of light as the energy source has important consequences in the potential use of these architectures for energy conversion and storage. 96
Journal of Energy Storage | ScienceDirect by Elsevier
The Journal of Energy Storage focusses on all aspects of energy storage, in particular systems integration, electric grid integration, modelling and analysis, novel energy storage technologies, sizing and management strategies, business models for operation of storage systems and energy storage . View full aims & scope.
Unidades de Procesos Fotoactivados
Development of photoactivated processes for energy and environment: solar fuels production by artificial photosynthesis (including CO2 photoreduction and H2 production from H2 O and biomass-derived products), NOx and VOCs remediation. Design and synthesis of multifunctional materials: inorganic, organic and hybrid thereof.
Photoswitches and photochemical reactions for optically
Introduction. Molecular solar thermal (MOST) energy-storage materials are a class of compounds that store photon energy in chemical bonds upon photoconversion, which releases as heat during reversion when triggered by external stimulation. 1, 2, 3 MOST materials typically consist of photoswitches that isomerize
Experimental Evidence for Photoactivated BiVO4 Anodes
photoactivation effectrecurred via repeated light irradiation and dark storage. The PEC technique was used to show that the intraband gap states reduced after photoactivation, and hole accumulation increased on the photoactivated BiVO 4 surface during the subsequent water oxidation reaction.
Photoactivated p-Doping of Organic Interlayer Enables
Photoactivated p-Doping of Organic Interlayer Enables Efficient A D-doped PTAA solution was formed by storage in the dark, and an LS-doped PTAA solution was formed by light soaking. PTAA, as hole transport layer, was spin-coated on the silicon and the pass energy was 5.85 eV. To minimize the light-soaking effect observed in D-doped PTAA
Copper‐Doped CdSe/ZnS Quantum Dots: Controllable Photoactivated
The use of quantum dots (QDs) for optical devices, 1 – 3 bio-imaging agents, 4, 5 and energy materials 6 has been the subject of intensive research, but their photoactivated properties have been largely overlooked as vectors for the controlled release of catalytic metals. 7 Herein we demonstrate that Cu-doped CdSe/ZnS QDs act as vectors for the
A solar storable fuel cell with efficient photo-degradation of organic
1. Introduction. Increasing concerns over the future availability of global fossil energy resources and the environmental contamination by pollutant emission produced massively in modern society have stimulated the development of new energy technologies with minimal ecological footprint [1] such a pursuit of clean energy and
Laser Synthesis and Microfabrication of Micro/Nanostructured
Nanomaterials are known to exhibit a number of interesting physical and chemical properties for various applications, including energy conversion and storage, nanoscale electronics, sensors and actuators, photonics devices and even for biomedical purposes. In the past decade, laser as a synthetic technique and laser as a
Photoactivated Fuel Cells (PhotoFuelCells). An alternative
Solar energy can be converted into electricity or chemical energy by various techniques, photovoltaics being the most direct. Large scale production of electricity by solar energy conversion should, however, be supported by procedures of energy storage. One way to store energy is to convert it into chemical energy, in particular, hydrogen.
A high power density photoactive thermal energy storage material
This work develops a promising Azo F-rGO photoactive chemical heat storage material, which not only has high heat storage density and power density but
Photoswitches and photochemical reactions for optically
In recent years, the photo-induced crystal-to-liquid phase transition (Figure 1 A) of various azobenzene and azoheteroarene derivatives has been reported, which allows for the storage of ΔH iso and the phase transition energy, i.e., crystallization energy (ΔH c).This strategy culminates in a functionalized derivative with a maximum storage
Phosphorescence resonance energy transfer from purely organic
Phosphorescence energy transfer systems have been applied in encryption, biomedical imaging and chemical sensing. These systems exhibit ultra-large Stokes shifts, high quantum yields and are
Kinetic and energetic insights into the dissipative non
The cycling rate, quantum yield, energy storage and power conversion efficiency were derived from the experimental concentrations at different incident photon
Efficient photocatalytic hydrogen evolution through reverse
A facile method is developed for the preparation of mesoporous TiO 2 spheres doped with transition metals.. The hydrogen evolution on photoactivated Cu-mTiO 2 is through a reverse hydrogen spillover process.. The photoactivation-induced enhancement of photocatalysis is major from the change of active sites instead of the
Solar-Photoactivated Nanoporous Graphene Aerogel Flowers for
Supercapacitors are gaining popularity as potential energy-storage devices due to their efficiency and environmentally sustainable features. Among the extensive range of 2D materials utilized in energy storage, graphene is particularly noteworthy for its exceptional physicochemical properties. Graphene aerogels (GAs) have great potential for
The electronic structure of transition metal oxides for oxygen
c Photoactivated Processes Unit, IMDEA Energy, Ramón de la Sagra, 3, 28935, Móstoles, Madrid, Spain Electrolysis of water to produce hydrogen and oxygen is a promising pathway for the storage of renewable energy in form of chemical fuels. The efficiency of the overall process is usually limited by the sluggish kinetics of the oxygen
Hot Topic: Batteries and Supercapacitors: Batteries & Supercaps
Supercapacitors are energy storage devices that enable enhanced charge storage capacity, fast charge-discharge rates, and high power density. Industrial applications require inexpensive materials with outstanding performance. This review provides an in-depth analysis of emerging bismuth-based perovskite ferrite materials for
The Effect of Variable Energy Input from a Novel Light Source on
Abstract. Although the combination of toluidine blue O (TBO) dye and laser light at a wavelength of 633 nm has a bactericidal effect, light from laboratory lasers can only be directed externally at a bacterial colony or suspension. In this study a novel delivery system guided the laser light to an 800-µm diameter spherical tip (an isotropic tip) from
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