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- Title
Back Cover: Superior electric storage in de-alloyed and anodic oxidized Ti-Ni-Si glassy alloy ribbons (Phys. Status Solidi RRL 7/2013).
- Authors
Fukuhara, M.; Yoshida, H.; Sato, M.; Sugawara, K.; Takeuchi, T.; Seki, I.; Sueyoshi, T.
- Abstract
Supercapacitor: Mikio Fukuhara et al. (see pp. 477–480) discovered Ti–Ni–Si glassy alloy supercapacitors that can store electric charge on TiO2 surfaces that contain many nanometer‐sized cavities. In contrast to the traditional electrochemical reactions, the supercapacitors do not require solutions with ions but directly charge/discharge electrons in wide temperature (∼193–453 K) and voltage (∼200 V) regions under DC and AC applications. The device consists in a distributed constant equivalent circuit of R and C. The cover picture shows de‐alloyed and anodic oxidized amorphous TiO2 surface, where canyons of ca. 7 nm in size with higher work functions, Φ, of 5.53 eV can directly store electrons. Further gains could be attained with surface optimization.
- Subjects
PHYSICAL sciences; PHYSICAL sciences research
- Publication
Physica Status Solidi - Rapid Research Letters, 2013, Vol 7, Issue 7, pn/a
- ISSN
1862-6254
- Publication type
Article
- DOI
10.1002/pssr.201370439