Emergent Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 16, 2024
Language: Английский
Fuel, Journal Year: 2023, Volume and Issue: 349, P. 128771 - 128771
Published: May 25, 2023
Language: Английский
Citations
11
Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(21), P. 7695 - 7706
Published: Jan. 1, 2024
A chemometric approach was used to investigate the phase stability and oxygen non-stoichiometry of two high entropy perovskites, namely La(CrMnFeCoNi)O 3 La(CrMnFeCoZn)O . This allows rapid screening predict desired material response.
Language: Английский
Citations
4
Energy Conversion and Management, Journal Year: 2025, Volume and Issue: 334, P. 119821 - 119821
Published: April 27, 2025
Language: Английский
Citations
0
Materials, Journal Year: 2023, Volume and Issue: 16(9), P. 3582 - 3582
Published: May 7, 2023
Redox materials have been investigated for various thermochemical processing applications including solar fuel production (hydrogen, syngas), ammonia synthesis, energy storage, and air separation/oxygen pumping, while involving concentrated as the high-temperature process heat source solid-gas reactions. Accordingly, these can be processed in two-step redox cycles from H2O CO2 splitting. In such cycles, metal oxide is first thermally reduced when heated under energy. Then, material re-oxidized with either or to produce H2 CO. The mixture forms syngas that used synthesis of hydrocarbon fuels. An alternative involves systems oxides/nitrides N2 based on chemical looping cycles. A nitride reacts steam form corresponding oxide. latter then recycled a nitridation reaction reducer. another process, reversible endothermal/exothermal reactions storage at high temperature. reduction corresponds charge reverse oxidation leads discharge supplying downstream process. Similar finally oxygen separation air, which results separate flows O2 both valorized, pumping absorb residual oxygen. This review deals different stoichiometric non-stoichiometric applied (H2, syngas, ammonia), gas purification. most relevant best performing acting carriers are identified described, well reactors suitable absorption, conversion, storage.
Language: Английский
Citations
9
Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 466, P. 142668 - 142668
Published: May 24, 2024
Language: Английский
Citations
3
ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(19), P. 14974 - 15013
Published: Sept. 25, 2024
Solar-driven thermochemical hydrogen (STCH) production represents a sustainable approach for converting solar energy into (H2) as clean fuel. This technology serves crucial feedstock synthetic fuel production, aligning with the principles of energy. The efficiency conversion process relies on meticulous tuning properties active materials, mostly commonly perovskite and fluorite oxides. Review conducts comprehensive review encompassing experimental, computational, thermodynamic kinetic property studies, primarily assessing utilization oxides in two-step reactions identifying essential attributes future research endeavors. Furthermore, this delves application machine learning (ML) density functional theory (DFT) predicting classifying materials. Through integration experimental investigations, computational modeling, ML methodologies, aspires to expedite screening optimization oxides, thus enhancing STCH processes. overarching objective is propel advancement practical systems, contributing significantly realization carbon-neutral landscape.
Language: Английский
Citations
3
Nanomaterials, Journal Year: 2024, Volume and Issue: 14(19), P. 1560 - 1560
Published: Sept. 27, 2024
Climatic changes are reaching alarming levels globally, seriously impacting the environment. To address this environmental crisis and achieve carbon neutrality, transitioning to hydrogen energy is crucial. Hydrogen a clean source that produces no emissions, making it essential in technological era for meeting needs while reducing pollution. Abundant nature as water hydrocarbons, must be converted into usable form practical applications. Various techniques employed generate from water, with solar production—using light split water—standing out cost-effective environmentally friendly approach. However, widespread adoption of challenged by transportation storage issues, requires compressed liquefied gas tanks. Solid offers promising solution, providing an effective low-cost method storing releasing hydrogen. Solar generation splitting more efficient than other methods, uses self-generated power. Similarly, solid also attractive many ways, including efficiency cost-effectiveness. This can achieved through chemical adsorption materials such hydrides forms. These methods seem costly initially, but once established, they will become considering rising fuel prices, depletion fossil resources, advancements science technology. oxide cells (SOFCs) highly converting electrical energy, producing electricity emissions. If proper established under ambient conditions, used utilization via efficient, safe, technique. With ongoing development techniques, expected soon feasible cost-effective. review comprehensively consolidates research on storage, focusing global standards 6.5 wt% gravimetric capacity at temperatures between −40 60 °C. It summarizes various discusses current challenges storage. includes material selection, structural modifications needed optimal performance potential
Language: Английский
Citations
3
ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 19, 2024
The development of multifunctional electrocatalysts with high performance for electrocatalyzing urea oxidation-assisted water splitting is great significance energy-saving hydrogen production. In this work, we demonstrate a novel heteroatom engineering strategy B-doped Co as electrocatalyst the evolution reaction (HER), oxygen (OER), and oxidation (UOR). Density functional theory (DFT) results suggest that B dopant can efficiently adjust electron reconstruction exposure sites nearby facilitate transfer, resulting in an optimal d-band center along lower Gibbs free energy barrier. Ultimately, obtained B–Co exhibits pH-universal HER properties various electrolytes. A highly efficient overpotentials low 27, 163, 430 mV to −10, −100, −500 mA cm–2 1.0 M KOH, respectively, observed electrode. More importantly, UOR-assisted electrolyzer only requires voltage input 1.55 V produce current densities 50 cm–2, 200 saving-energy potential compared electrolysis, demonstrating its efficiency production industrial applications.
Language: Английский
Citations
3
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(20), P. 14114 - 14127
Published: May 13, 2024
The van't Hoff method is a standard approach for determining reaction enthalpies and entropies, e.g., in the thermochemical reduction of oxides, which an important process solar fuels numerous other applications. However, by analyzing oxygen partial pressure
Language: Английский
Citations
2
Korean Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 17, 2024
Abstract Chemical looping processes are considered a promising pathway for the efficient production of various fuels and chemicals. Temporally or spatially separated reduction oxidation reaction in chemical can offer advantages such as enhancing energy efficiency, surpassing equilibrium limitations, eliminating need separation. However, efficiency process highly depends on performance oxygen carrier. Higher gas conversion increase separation higher solid reduce amount cycled The indicators related to thermodynamic properties carriers their redox kinetics. This review introduces some key articles recent achievements enhancement properties. different research strategies discussed stoichiometric non-stoichiometric carriers. Through rational design carrier material, an energy-efficient is possible.
Language: Английский
Citations
2