The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Hollow TiO2@Co9S8 Core–Branch Arrays as Bifunctional Electrocatalysts for Efficient Oxygen/Hydrogen Production
Open accessAbstract
Designing ever more efficient and cost‐effective bifunctional electrocatalysts for oxygen/hydrogen evolution reactions (OER/HER) is greatly vital and challenging. Here, a new type of binder‐free hollow TiO 2@Co 9 S 8 core–branch arrays is developed as highly active OER and HER electrocatalysts for stable overall water splitting. Hollow core–branch arrays of TiO 2@Co 9 S 8 are readily realized by the rational combination of crosslinked Co 9 S 8 nanoflakes on TiO 2 core via a facile and powerful sulfurization strategy. Arising from larger active surface area, richer/shorter transfer channels for ions/electrons, and reinforced structural stability, the as‐obtained TiO 2@Co 9 S 8 core–branch arrays show noticeable exceptional electrocatalytic performance, with low overpotentials of 240 and 139 mV at 10 mA cm−2 as well as low Tafel slopes of 55 and 65 mV Dec−1 for OER and HER in alkaline medium, respectively. Impressively, the electrolysis cell based on the TiO 2@Co 9 S 8 arrays as both cathode and anode exhibits a remarkably low water splitting voltage of 1.56 V at 10 mA cm−2 and long‐term durability with no decay after 10 d. The versatile fabrication protocol and smart branch‐core design provide a new way to construct other advanced metal sulfides for energy conversion and storage.
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Metadata
- Authors
- Deng, S., Zhong, Y., Zeng, Y., Wang, Y., Wang, X., Lu, X., Xia, X., & Tu, J.
- Venue
- Advanced Science
- Publisher
- Wiley
- Published
- 2017-12-19
- Volume
- 5
- Issue
- 3
- Pages
- 1700772-1700772
- ISSN
- 2198-3844 (ISSN-L)
- OpenAlex
- W2781103706
- Cited by
- 216
- References
- 8
- FWCI
- 8.11
- Type
- journal article
- Language
- en
- Open access
- gold
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