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Direct H2S Decomposition by Plasmonic Photocatalysis: Efficient Remediation plus Sustainable Hydrogen Production

Publication ,  Journal Article
Lou, M; Bao, JL; Zhou, L; Naidu, GN; Robatjazi, H; Bayles, AI; Everitt, HO; Nordlander, P; Carter, EA; Halas, NJ
Published in: ACS Energy Letters
October 14, 2022

Plasmonic metal nanostructures have garnered rapidly increasing interest as heterogeneous photocatalysts, facilitating chemical bond activation and overcoming the high energy demands of conventional thermal catalysis. Here we report the highly efficient plasmonic photocatalysis of the direct decomposition of hydrogen sulfide into hydrogen and sulfur, an alternative to the industrial Claus process. Under visible light illumination and with no external heat source, up to a 20-fold reactivity enhancement compared to thermocatalysis can be observed. The substantially enhanced reactivity can be attributed to plasmon-mediated hot carriers (HCs) that modify the reaction energetics. With a shift in the rate-determining step of the reaction, a new reaction pathway is made possible with a lower apparent reaction barrier. Light-driven one-step decomposition of hydrogen sulfide represents an exciting opportunity for simultaneous high-efficiency hydrogen production and low-temperature sulfur recovery, important in many industrial processes.

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Published In

ACS Energy Letters

DOI

EISSN

2380-8195

Publication Date

October 14, 2022

Volume

7

Issue

10

Start / End Page

3666 / 3674

Related Subject Headings

  • 40 Engineering
  • 34 Chemical sciences
 

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Lou, M., Bao, J. L., Zhou, L., Naidu, G. N., Robatjazi, H., Bayles, A. I., … Halas, N. J. (2022). Direct H2S Decomposition by Plasmonic Photocatalysis: Efficient Remediation plus Sustainable Hydrogen Production. ACS Energy Letters, 7(10), 3666–3674. https://doi.org/10.1021/acsenergylett.2c01755
Lou, M., J. L. Bao, L. Zhou, G. N. Naidu, H. Robatjazi, A. I. Bayles, H. O. Everitt, P. Nordlander, E. A. Carter, and N. J. Halas. “Direct H2S Decomposition by Plasmonic Photocatalysis: Efficient Remediation plus Sustainable Hydrogen Production.” ACS Energy Letters 7, no. 10 (October 14, 2022): 3666–74. https://doi.org/10.1021/acsenergylett.2c01755.
Lou M, Bao JL, Zhou L, Naidu GN, Robatjazi H, Bayles AI, et al. Direct H2S Decomposition by Plasmonic Photocatalysis: Efficient Remediation plus Sustainable Hydrogen Production. ACS Energy Letters. 2022 Oct 14;7(10):3666–74.
Lou, M., et al. “Direct H2S Decomposition by Plasmonic Photocatalysis: Efficient Remediation plus Sustainable Hydrogen Production.” ACS Energy Letters, vol. 7, no. 10, Oct. 2022, pp. 3666–74. Scopus, doi:10.1021/acsenergylett.2c01755.
Lou M, Bao JL, Zhou L, Naidu GN, Robatjazi H, Bayles AI, Everitt HO, Nordlander P, Carter EA, Halas NJ. Direct H2S Decomposition by Plasmonic Photocatalysis: Efficient Remediation plus Sustainable Hydrogen Production. ACS Energy Letters. 2022 Oct 14;7(10):3666–3674.
Journal cover image

Published In

ACS Energy Letters

DOI

EISSN

2380-8195

Publication Date

October 14, 2022

Volume

7

Issue

10

Start / End Page

3666 / 3674

Related Subject Headings

  • 40 Engineering
  • 34 Chemical sciences