Jana B, Reva Y, Scharl T, Strauss V, Cadranel A, Guldi DM (2021)
Publication Type: Journal article
Publication year: 2021
Book Volume: 143
Pages Range: 20122-20132
Journal Issue: 48
DOI: 10.1021/jacs.1c07049
Carbon nanodots (CNDs) were photochemically altered to produce dihydrogen under light irradiation. Within the complex structure of CNDs, photo-oxidation takes place at citrazinic acid molecular fluorophore sites. Important is the fact that the resulting CND materials have a dual function. On one hand, they absorb light, and on the other hand, they photo- and electrocatalytically produce dihydrogen from water and seawater, without any external photosensitizer or cocatalyst. Record HER activities of 15.15 and 19.70 mmol(H2) g(catalyst)-1 h-1 were obtained after 1 h of 75 mW/cm2 Xe lamp illumination, from water and seawater, respectively. This impressive performance outweighs the remaining structural uncertainties. A full-fledged physicochemical investigation based on an arsenal of steady-state and time-resolved spectroscopic characterizations together with microscopy enabled a comprehensive look into the reaction mechanism. For an efficient dihydrogen formation, a precatalytic activation by means of reduction with a sacrificial electron donor is imperative.
APA:
Jana, B., Reva, Y., Scharl, T., Strauss, V., Cadranel, A., & Guldi, D.M. (2021). Carbon Nanodots for All-in-One Photocatalytic Hydrogen Generation. Journal of the American Chemical Society, 143(48), 20122-20132. https://doi.org/10.1021/jacs.1c07049
MLA:
Jana, Bikash, et al. "Carbon Nanodots for All-in-One Photocatalytic Hydrogen Generation." Journal of the American Chemical Society 143.48 (2021): 20122-20132.
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