ORCID Profile
0000-0003-3564-2380
Current Organisation
University College London
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Publisher: Springer Science and Business Media LLC
Date: 14-02-2023
DOI: 10.1038/S41467-023-35973-8
Abstract: Proton exchange membrane fuel cells, consuming hydrogen and oxygen to generate clean electricity and water, suffer acute liquid water challenges. Accurate liquid water modelling is inherently challenging due to the multi-phase, multi-component, reactive dynamics within multi-scale, multi-layered porous media. In addition, currently inadequate imaging and modelling capabilities are limiting simulations to small areas ( mm 2 ) or simplified architectures. Herein, an advancement in water modelling is achieved using X-ray micro-computed tomography, deep learned super-resolution, multi-label segmentation, and direct multi-phase simulation. The resulting image is the most resolved domain (16 mm 2 with 700 nm voxel resolution) and the largest direct multi-phase flow simulation of a fuel cell. This generalisable approach unveils multi-scale water clustering and transport mechanisms over large dry and flooded areas in the gas diffusion layer and flow fields, paving the way for next generation proton exchange membrane fuel cells with optimised structures and wettabilities.
Publisher: Elsevier BV
Date: 04-2020
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 2016
Publisher: Elsevier BV
Date: 09-2018
Publisher: Elsevier BV
Date: 07-2017
Publisher: Wiley
Date: 16-01-2019
Publisher: Elsevier BV
Date: 06-2019
Publisher: Elsevier BV
Date: 11-2014
Publisher: Proceedings of the National Academy of Sciences
Date: 22-02-2016
Abstract: New information from the ANDRILL-2A drill core and a complementary ice sheet modeling study show that polar climate and Antarctic ice sheet (AIS) margins were highly dynamic during the early to mid-Miocene. Changes in extent of the AIS inferred by these studies suggest that high southern latitudes were sensitive to relatively small changes in atmospheric CO 2 (between 280 and 500 ppm). Importantly, reconstructions through intervals of peak warmth indicate that the AIS retreated beyond its terrestrial margin under atmospheric CO 2 conditions that were similar to those projected for the coming centuries.
Publisher: American Geophysical Union (AGU)
Date: 03-2019
DOI: 10.1029/2018JB016865
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3TA02508J
Abstract: 3D printed electrodes of 1T′/1T MoS 2 /TiS 2 nanosheets without conductive additives have been demonstrated to perform for durable supercapacitors.
Publisher: Elsevier BV
Date: 03-2019
Publisher: The Electrochemical Society
Date: 2018
DOI: 10.1149/2.0051806JES
Publisher: American Association for the Advancement of Science (AAAS)
Date: 15-04-2022
Abstract: The oldest putative fossils occur as hematite filaments and tubes in jasper-carbonate banded iron formations from the 4280- to 3750-Ma Nuvvuagittuq Supracrustal Belt, Québec. If biological in origin, these filaments might have affinities with modern descendants however, if abiotic, they could indicate complex prebiotic forms on early Earth. Here, we report images of centimeter-size, autochthonous hematite filaments that are pectinate-branching, parallel-aligned, undulated, and containing Fe 2+ -oxides. These microstructures are considered microfossils because of their mineral associations and resemblance to younger microfossils, modern Fe-bacteria from hydrothermal environments, and the experimental products of heated Fe-oxidizing bacteria. Additional clusters of irregular hematite ellipsoids could reflect abiotic processes of silicification, producing similar structures and thus yielding an uncertain origin. Millimeter-sized chalcopyrite grains within the jasper-carbonate rocks have 34 S- and 33 S-enrichments consistent with microbial S-disproportionation and an O 2 -poor atmosphere. Collectively, the observations suggest a erse microbial ecosystem on the primordial Earth that may be common on other planetary bodies, including Mars.
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Francesco Iacoviello.