journal article·2019-09-23

Excellent Oxygen Reduction Reaction Performance in Self-Assembled Amyloid-β/Platinum Nanoparticle Hybrids with Effective Platinum–Nitrogen Bond Formation

Amandeep Jindal, Kentaro Tashiro, Hiroaki Kotani, Toshiaki Takei, Sven Reichenberger, Galina Marzun, Stephan Barcikowski, Takahiko Kojima, Yohei Yamamoto

ACS Applied Energy Materials· Volume 2· Issue 9
Publisher page

Abstract

The development of highly efficient catalysts for electrochemical oxygen reduction reactions (ORRs) is crucial for energy applications such as metal–air batteries and fuel cells. Here, we show an enhanced electrocatalytic activity of a new functional material composed of Pt nanoparticles (PtNPs) and self-assembled β-sheet peptides (βPs). The PtNP/βP hybrids, under an optimized assembly condition, display an ORR electrocatalytic activity that is higher than that of a commercially available benchmark Pt/C electrocatalyst in terms of the onset potential and reaction kinetics. Moreover, the PtNP/βP hybrids show one order of magnitude higher ORR mass activity than previously reported peptide-based ORR electrocatalysts. The superb ORR activity with high durability is derived from the well-dispersed PtNPs on βPs, where 50% of the amine groups on the side chain bound with Pt to form Pt–N bonds that function as active sites for the catalytic reaction. This work opens new avenues for efficient ORR electrocatalysts using self-assembled peptides.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Electrochemical Analysis and Applications · Advanced Memory and Neural Computing

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan

International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan

Nanotechnology Innovation Station, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

Technical Chemistry I, Department of Chemistry, and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitätstraße 7, 45141 Essen, Germany

Tsukuba Research Centre for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan

Funding

Japan Society for the Promotion of Science · University of Tsukuba Pre-strategic initiative · TIA Kakehashi

References (36)

Show source-provided references
1. 10.1002/adma.20180479910.1002/adma.201804799 ↗
2. 10.1021/acsenergylett.7b0011910.1021/acsenergylett.7b00119 ↗
3. 10.1002/aenm.20170273410.1002/aenm.201702734 ↗
4. 10.1002/adma.20180429710.1002/adma.201804297 ↗
5. 10.1016/j.jpowsour.2016.12.04710.1016/j.jpowsour.2016.12.047 ↗
6. 10.1039/c0cp00609b10.1039/c0cp00609b ↗
7. 10.1126/science.113456910.1126/science.1134569 ↗
8. 10.1038/s41929-018-0118-110.1038/s41929-018-0118-1 ↗
9. 10.1016/j.jpowsour.2007.07.00410.1016/j.jpowsour.2007.07.004 ↗
10. 10.1016/j.carbon.2010.08.04510.1016/j.carbon.2010.08.045 ↗
11. 10.1021/acs.langmuir.7b0064210.1021/acs.langmuir.7b00642 ↗
12. 10.1021/acs.langmuir.8b0394710.1021/acs.langmuir.8b03947 ↗
13. 10.1016/j.apsusc.2018.10.06110.1016/j.apsusc.2018.10.061 ↗
14. 10.1039/c1cc14261e10.1039/c1cc14261e ↗
15. 10.1039/C5RA10884E10.1039/C5RA10884E ↗
16. 10.1002/adma.20180561710.1002/adma.201805617 ↗
17. 10.1002/adma.20120446110.1002/adma.201204461 ↗
18. 10.1002/adma.20160248510.1002/adma.201602485 ↗
19. 10.1039/c3nr33998j10.1039/c3nr33998j ↗
20. 10.1021/bi800061610.1021/bi8000616 ↗
21. 10.1016/j.bpc.2008.08.00710.1016/j.bpc.2008.08.007 ↗
22. 10.1038/ncomms1593810.1038/ncomms15938 ↗
23. 10.1016/j.apsusc.2018.10.14510.1016/j.apsusc.2018.10.145 ↗
24. 10.1021/acs.chemrev.6b0046810.1021/acs.chemrev.6b00468 ↗
25. 10.1016/j.jcat.2015.07.03310.1016/j.jcat.2015.07.033 ↗
26. 10.1021/acsami.6b1676510.1021/acsami.6b16765 ↗
27. 10.1016/j.msec.2005.09.06210.1016/j.msec.2005.09.062 ↗
28. 10.1039/c1nr10453e10.1039/c1nr10453e ↗
29. 10.1016/B978-0-08-100737-2.00004-210.1016/B978-0-08-100737-2.00004-2 ↗
30. 10.1021/ie400376610.1021/ie4003766 ↗
31. 10.1016/j.electacta.2014.07.13810.1016/j.electacta.2014.07.138 ↗
32. 10.1021/jp044442z10.1021/jp044442z ↗
33. 10.1039/C6CP05361K10.1039/C6CP05361K ↗
34. 10.1039/c1ee01041g10.1039/c1ee01041g ↗
35. 10.1016/j.elecom.2010.10.00210.1016/j.elecom.2010.10.002 ↗
36. 10.1021/acssuschemeng.8b0500010.1021/acssuschemeng.8b05000 ↗