Abstract: Over the past few decades, inorganic nitride materials have grown in importance in part due to their potential as catalysts for the synthesis of NH3, a key ingredient in fertilizer and precursor to industrial chemicals. Of particular interest are the ternary...
solar fuels
Sandia’s green ammonia research matters for a global shipping future
Green ammonia could be made sustainably using solar thermochemistry instead of the way it is made today in the fossil-fueled Haber-Bosch process, which taps fossil energy for the thermochemistry and the heat and the high pressure it requires, while emitting almost...
US DOE funds Synhelion to scale up its solar thermal hydrogen
Solar hydrogen is a component of the thermochemical solar fuels that Synhelion is developing commercially, such as aviation fuel The solar thermal green hydrogen technology beginning to be commercialized by Synhelion has now received a nod from the US DOE with funding...
AELIUS to champion green ammonia for China’s shipping
Xavier Lara’s consultancy AELIUS Energies SLU to champion green ammonia for shipping before an audience of major shipbuilders in Qingdao China
How solar fuels work: Concentrated solar and thermochemistry
Solar fuels are made using thermochemistry driven by direct heat from the sun In this process, solar thermal energy provides the heat for thermochemical reactions to produce new compounds such as green hydrogen or sustainable aviation fuel. Highly concentrated solar...
Heliogen gets first solar thermal hydrogen customer: City of Lancaster, CA
Press Release: Heliogen Collaboration to decarbonize America’s “First Hydrogen City” through Heliogen’s patented breakthrough CST technology PASADENA, Calif. & LANCASTER, Calif. (June 6, 2023) —Heliogen, Inc. (“Heliogen”) (NYSE: HLGN), a leading provider of...
Thermochemical energy storage to deliver Gen3 solar 365 days/yr
Solar even under grey skies 365 days a year: Typically, simplicity equals low costs. But the creators of a multi-technology thermochemical energy storage system for Gen3 concentrating solar power (CSP) claim that their complex design would bring costs down by enabling...
Published at Materials Today Energy – Strategic co-doping of ceria for improved oxidation kinetics in solar thermochemical fuel production
Abstract: La and Yb were incorporated as co-doping elements into Zr-doped ceria to investigate the influence of doping ions by means of ionic radius and valence on the ceria crystal lattice and potentially on thermodynamic and kinetic properties relevant to...
Published at Applied Energy – A novel high-efficiency solar thermochemical cycle for fuel production based on chemical-looping cycle oxygen removal
Abstract: Solar-driven two-step thermochemical cycling is a promising means to convert solar energy into storable and transportable chemical fuel, in which hydrogen or carbon monoxide is generated by continuous reduction and oxidation reactions. However, the high...
Solar reactor attains over 20% efficiency in hydrogen production
A new solar-radiation-concentrating device produces green hydrogen at a rate of more than 2 kilowatts while maintaining efficiencies above 20%. The pilot-scale device, which is already operational under real sunlight conditions, also produces usable heat and oxygen,...
Published at ACS – Compositionally Complex Perovskite Oxides for Solar Thermochemical Water Splitting
Abstract: Solar thermochemical hydrogen (STCH) generation is a promising approach for eco-friendly H2 production, but conventional STCH redox compounds cannot easily achieve desirable thermodynamic and kinetic properties and phase stability simultaneously due to a...
Published at Solar Energy – Potential of solar thermochemical water-splitting cycles: A review
Abstract: This article discusses several routes available to produce hydrogen fuel, with a special focus on solar thermochemical cycles for Water Splitting (WS). Solar thermochemical WS cycles are a potential technology to produce green hydrogen and CO in the future...
Published at Sustainable Energy and Fuels – Methane dry reforming via a ceria-based redox cycle in a concentrating solar tower
Abstract: Drop-in fuels produced using solar energy can provide a viable pathway towards sustainable transportation, especially for the long-haul aviation sector which is strongly dependent on jet fuel. This study reports on the experimental testing of a solar reactor...
Add nickel to ceria for solar syngas at just 700°C
Adding nickel to ceria can yield solar syngas at lower temperatures - at just 700°C Solar thermochemistry researchers at the University of Florida and Synhelion tried a new way to generate syngas, the precursor to hydrocarbon fuels like jet fuel or diesel. Solar...
Published at Applied Energy – High-temperature heat recovery from a solar reactor for the thermochemical redox splitting of H2O and CO2
Abstract: The solar splitting of H2O and CO2 via a thermochemical redox cycle offers a viable pathway for producing sustainable drop-in fuels for the transportation sectors. The key performance metric is its solar-to-fuel energy efficiency, which is strongly dependent...
Water-cooled window for hot solar receivers over 1500°C
Goal: ensure the quartz window never exceeds 300°C, despite solar receiver temperatures above 1500°C – keeping thermal efficiency over 50%
Published at Sustainable Energy & Fuels – Methane dry reforming via a ceria-based redox cycle in a concentrating solar tower
Abstract: Drop-in fuels produced using solar energy can provide a viable pathway towards sustainable transportation, especially for the long-haul aviation sector which is strongly dependent on jet fuel. This study reports on the experimental testing of a solar reactor...
DOE seeks stakeholder R&D advice to advance solar fuels
Source: U.S. Department of Energy (DOE) Solar Energy Technologies Office (SETO) The U.S. Department of Energy (DOE) Solar Energy Technologies Office (SETO) has issued a request for information (RFI) on the technology needs and cost targets for renewable fuels produced...
Green hydrogen shipping breakthrough: HySiLabs
HySiLabs has pioneered a low-cost, non-toxic, non-explosive green hydrogen storage method in a liquid at ambient pressures and temperatures
Published at Joule – A solar tower fuel plant for the thermochemical production of kerosene from H2O and CO2
Summary: Developing solar technologies for producing carbon-neutral aviation fuels has become a global energy challenge, but their readiness level has largely been limited to laboratory-scale studies. Here, we report on the experimental demonstration of a fully...
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