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Title: Rational design of efficient electrode–electrolyte interfaces for solid-state energy storage using ion soft landing

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms11399· OSTI ID:1253857

Here, the rational design of improved electrode-electrolyte interfaces (EEI) for energy storage is critically dependent on a molecular-level understanding of ionic interactions and nanoscale phenomena. The presence of non-redox active species at EEI has been shown to strongly influence Faradaic efficiency and long-term operational stability during energy storage processes. Herein, we achieve substantially higher performance and long-term stability of EEI prepared with highly-dispersed discrete redox-active cluster anions (50 ng of pure ~0.7 nm size molybdenum polyoxometalate anions (POM) anions on 25 mg (≈ 0.2 wt%) carbon nanotube (CNT) electrodes) by complete elimination of strongly coordinating non-redox species through ion soft-landing (SL). For the first time, electron microscopy provides atomically-resolved images of individual POM species directly on complex technologically relevant CNT electrodes. In this context, SL is established as a versatile approach for the controlled design of novel surfaces for both fundamental and applied research in energy storage.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1253857
Report Number(s):
PNNL-SA-113159; ncomms11399
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 71 works
Citation information provided by
Web of Science

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Cited By (11)

Atomic‐ and Molecular‐Level Design of Functional Metal–Organic Frameworks (MOFs) and Derivatives for Energy and Environmental Applications journal August 2019
Flexible Li-CO 2 Batteries with Liquid-Free Electrolyte journal April 2017
Von isolierten Ionen zu mehrschichtigen funktionellen Materialien durch sanfte Landung von Ionen journal November 2018
Jenseits von Ladungsausgleich: Gegenkationen in der Polyoxometallat‐Chemie journal October 2019
From Isolated Ions to Multilayer Functional Materials Using Ion Soft Landing journal November 2018
Beyond Charge Balance: Counter‐Cations in Polyoxometalate Chemistry journal January 2020
Formation Mechanism and Reversible Expansion and Shrinkage of Magnesium-Based Homochiral Metal-Organic Nanotubes journal December 2016
Self-organizing layers from complex molecular anions journal May 2018
Electron microscopy of polyoxometalate ions on graphene by electrospray ion beam deposition journal January 2018
Observing the colloidal stability of iron oxide nanoparticles in situ journal January 2019
Flexible Li-CO 2 Batteries with Liquid-Free Electrolyte journal April 2017

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