Bai J, Qin C, Xu Y, Du Y, Ma G, Ding M. Biosugarcane-based carbon support for high-performance iron-based Fischer-Tropsch synthesis.
iScience 2021;
24:102715. [PMID:
34258552 PMCID:
PMC8253968 DOI:
10.1016/j.isci.2021.102715]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/06/2021] [Accepted: 06/07/2021] [Indexed: 11/15/2022] Open
Abstract
Exploiting new carbon supports with adjustable metal-support interaction and low price is of prime importance to realize the maximum active iron efficiency and industrial-scale application of Fe-based catalysts for Fischer-Tropsch synthesis (FTS). Herein, a simple, tunable, and scalable biochar support derived from the sugarcane bagasse was successfully prepared and was first used for FTS. The metal-support interaction was precisely controlled by functional groups of biosugarcane-based carbon material and different iron species sizes. All catalysts synthesized displayed high activities, and the iron-time-yield of Fe4/Cbio even reached 1,198.9 μmol gFe−1 s−1. This performance was due to the unique structure and characteristics of the biosugarcane-based carbon support, which possessed abundant C−O, C=O (η1(O) and η2(C, O)) functional groups, thus endowing the moderate metal-support interaction, high dispersion of active iron species, more active ε-Fe2C phase, and, most importantly, a high proportion of FexC/Fesurf, facilitating the maximum iron efficiency and intrinsic activity of the catalyst.
A kind of carbon support, derived from the sugarcane bagasse, is prepared
This biochar catalyst reaches an excellent FTY value in Fischer-Tropsch synthesis
Functional groups and Fe species sizes regulate metal-support interactions
Superior performance is due to abundant functional groups and ε-Fe2C
Collapse