Hydrous Nickel–Iron Turnbull’s Blue as a High-Rate and Low-Temperature Proton Electrode
Journal Article
·
· ACS Applied Materials and Interfaces
- Oregon State Univ., Corvallis, OR (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States). Advanced Photon Source (APS)
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Illinois, Chicago, IL (United States)
- Univ. of Illinois, Chicago, IL (United States)
Proton batteries are emerging as a promising solution for energy storage; however, their development has been hindered by the lack of suitable cathode materials. Herein, a hydrous Turnbull’s blue analogue (TBA) of Ni[Fe(CN)6]2/3·4H2O has been investigated as a viable proton cathode. Particularly, it shows an extremely high rate performance up to 6000 C (390 A g–1) at room temperature and delivers good capacity values at a low temperature of -40 °C in an aqueous electrolyte. The excellent rate capability is also amenable to high mass loadings of 10 mg cm–2. Such fast and low-temperature rate behavior likely stems from the fast proton conduction that is afforded by the Grotthuss mechanism inside the TBA structure. Furthermore, advanced characterization, including in operando synchrotron X-ray diffraction (XRD), and X-ray absorption near-edge structure (XANES) were employed to understand the changes of crystal structures and the oxidation-states of metal elements of the electrodes.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office; USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1756187
- Journal Information:
- ACS Applied Materials and Interfaces, Journal Name: ACS Applied Materials and Interfaces Journal Issue: 8 Vol. 12; ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Phase transition and equation of state of dense hydrous silica up to 63 GPa
Diffusion-free Grotthuss topochemistry for high-rate and long-life proton batteries
A Structural Investigation of Hydrous and Anhydrous Rare-Earth Phosphates
Journal Article
·
Mon Jul 31 20:00:00 EDT 2017
· Journal of Geophysical Research. Solid Earth
·
OSTI ID:1409086
Diffusion-free Grotthuss topochemistry for high-rate and long-life proton batteries
Journal Article
·
Sun Jan 27 19:00:00 EST 2019
· Nature Energy
·
OSTI ID:1504249
A Structural Investigation of Hydrous and Anhydrous Rare-Earth Phosphates
Journal Article
·
Tue Sep 13 20:00:00 EDT 2016
· Inorganic Chemistry
·
OSTI ID:1332570