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Showing 1–9 of 9 results
Advanced filters: Author: Alexander C. Forse Clear advanced filters

  • Supercapacitors are fast-charging energy-storage devices. However, an understanding of how structure impacts high-power energy storage is still lacking. Here pulsed-field-gradient nuclear magnetic resonance measurements show that the pore network tortuosity, rather than traditional porosity analyses, in porous carbon dictates the speed of supercapacitor charging.

    • Thomas Kress
    • Xinyu Liu
    • Alexander C. Forse
    ResearchOpen Access
    Nature Materials
    P: 1-7

  • It is challenging to probe ion dynamics in supercapacitor electrodes, which has significant implications in optimizing their performance. Here, the authors develop in situ diffusion NMR spectroscopy to measure and illustrate the diffusion of the charge-storing ions in working supercapacitors.

    • Alexander C. Forse
    • John M. Griffin
    • Clare P. Grey
    Research
    Nature Energy
    Volume: 2, P: 1-7

  • Charged-sorbents are a new class of designer sorbent materials for the capture of carbon dioxide from the atmosphere, and can be regenerated at low temperatures with direct heating generation using renewable electricity.

    • Huaiguang Li
    • Mary E. Zick
    • Alexander C. Forse
    ResearchOpen Access
    Nature
    Volume: 630, P: 654-659

  • Supercapacitors are emerging as energy-efficient devices for CO2 capture. This work investigates the effects of charging protocols and electrode structures on electrochemical CO2 capture and explores the potential of devices for practical CO2 capture, especially in the presence of O2.

    • Zhen Xu
    • Grace Mapstone
    • Alexander C. Forse
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-11

  • Defects in metal-organic frameworks impact their structure and properties. Here authors uncover formate defects in MOF-74 that originate from decomposed DMF solvent. NMR shows that the defects partially eliminate open metal sites and lead to a decrease of gas adsorption; the adsorption mechanism of CO2 in defective MOF is also elucidated.

    • Yao Fu
    • Yifeng Yao
    • Xueqian Kong
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-9

  • A hurdle for designing improved capture materials is the lack of adequate tools to characterise how carbon dioxide adsorbs. Here the authors developed a method to understand how carbon dioxide is captured by materials. Their 17O solid-state NMR spectroscopy reveals clear signatures for different capture products.

    • Astrid H. Berge
    • Suzi M. Pugh
    • Alexander C. Forse
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-11

  • Nitrogenases use transition metals to selectively capture weak π acids such as N2 by employing backbonding interactions. Here, a metal–organic framework with exposed vanadium sites is presented that uses this approach for selective capture of N2 from CH4, with impressive selectivity and capacity.

    • David E. Jaramillo
    • Douglas A. Reed
    • Jeffrey R. Long
    Research
    Nature Materials
    Volume: 19, P: 517-521