Publications by authors named "E M Pastor"
Article Synopsis
- The study introduces a new photochemical reactor paired with a mass spectrometer designed to measure hydrogen generation from photochemical water splitting.
- Sphalerite-type Zn Cd S catalysts were created using an eco-friendly method that avoids harmful solvents and high temperatures, ensuring safer production.
- The results demonstrated that the new reactor effectively measured hydrogen production rates, achieving a notable 29.5 mmol of hydrogen per gram after 100 minutes of visible light exposure, surpassing previous benchmarks for other materials.
Ni nanoparticles supported on graphene-based materials were tested as catalysts for the oxygen reduction reaction (ORR) to be used in anion exchange membrane fuel cells (AEMFCs). The introduction of N into the graphene structure produced an enhancement of electrocatalytic activity by improving electron transfer and creating additional active sites for the ORR. Materials containing both N and S demonstrated the highest stability, showing only a 3% performance loss after a 10 h stability test and therefore achieving the best overall performance.
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- Wastewater Treatment Plants produce a large amount of sludge, necessitating cost-effective and eco-friendly management methods.
- Sludge Treatment Wetlands (STW) have proven effective in converting sludge into agricultural biosolids, with this study focusing on optimizing the final rest period in the Mediterranean region.
- Monitoring two WWTPs in Spain over 9 months revealed that a 6-month rest period after ceasing sludge feeding in summer is effective for producing high-quality biosolids with low contamination levels for agricultural reuse.
The oxygen evolution reaction is the bottleneck to energy-efficient water-based electrolysis for the production of hydrogen and other solar fuels. In proton exchange membrane water electrolysis (PEMWE), precious metals have generally been necessary for the stable catalysis of this reaction. In this work, we report that delamination of cobalt tungstate enables high activity and durability through the stabilization of oxide and water-hydroxide networks of the lattice defects in acid.
View Article and Find Full Text PDFThe development of nanoribbon-like structures is an effective strategy to harness the potential benefits of graphenic materials due to their excellent electrical properties, advantageous edge sites, rapid electron transport, and large specific area. Herein, parallel and connected magnetic nanostructured nanoribbons are obtained through the synthesis of reduced graphene oxide (rGO) using NiCl as a precursor with potential applications in nascent electronic and magnetic devices. Several analytical techniques have been used for the thorough characterization of the modified surfaces.
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