Issue 7, 2023

Enhancement of C5+ selectivity in photothermal Fischer–Tropsch synthesis by an inorganic heteropoly acid catalyst promotor

Abstract

Photothermal catalytic Fischer–Tropsch synthesis (FTS) enhances the catalytic efficiency of thermal-driven FTS reaction using a mild strategy, which is in line with the future trends in the chemical industry. However, constructing catalytic systems with high C5+ product selectivity is a challenge for photothermal FTS, since the hydrocracking reaction involving photogenerated electrons would decrease the long carbon chain product selectivity. In this work, the C5+ product selectivity of FTS was significantly improved from 65% to 93% under photothermal conditions by using heteropoly acid (H3PW12O40) as a catalyst promotor. Further characterization revealed that the enhancement mechanism of the C5+ product selectivity was that the as-designed Co/T-PW catalyst inhibited the hydrocracking reaction involving photoelectrons, promoted carbon chain growth, and directly participated in the cracking of C20+ products. This work provided a simple and efficient strategy to improve the C5+ product selectivity of photothermal FTS, making the photothermal FTS reaction more attractive.

Graphical abstract: Enhancement of C5+ selectivity in photothermal Fischer–Tropsch synthesis by an inorganic heteropoly acid catalyst promotor

Article information

Article type
Paper
Submitted
01 Jan 2023
Accepted
20 Feb 2023
First published
20 Feb 2023

Catal. Sci. Technol., 2023,13, 2092-2100

Enhancement of C5+ selectivity in photothermal Fischer–Tropsch synthesis by an inorganic heteropoly acid catalyst promotor

Y. Zhang, R. Hu, H. Su and Y. Su, Catal. Sci. Technol., 2023, 13, 2092 DOI: 10.1039/D3CY00002H

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