Tuning reactivity of Fischer–Tropsch synthesis by regulating TiOx overlayer over Ru/TiO2 nanocatalysts

Yaru Zhang; Xiaoli Yang; Xiaofeng Yang; Hongmin Duan; Haifeng Qi; Yang Su; Binglian Liang; Huabing Tao; Bin Liu; De Chen; Xiong Su; Yanqiang Huang; Tao Zhang

doi:10.1038/s41467-020-17044-4

Tuning reactivity of Fischer–Tropsch synthesis by regulating TiO_x overlayer over Ru/TiO₂ nanocatalysts

Yaru Zhang
, Xiaoli Yang
, Xiaofeng Yang^*
, Hongmin Duan
, Haifeng Qi
, Yang Su
, Binglian Liang
, Huabing Tao
, Bin Liu
, De Chen
, Xiong Su^*
, Yanqiang Huang^*
, Tao Zhang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

225 Citations (Scopus)

28 Downloads (CityUHK Scholars)

Abstract

The activity of Fischer–Tropsch synthesis (FTS) on metal-based nanocatalysts can be greatly promoted by the support of reducible oxides, while the role of support remains elusive. Herein, by varying the reduction condition to regulate the TiO_x overlayer on Ru nanocatalysts, the reactivity of Ru/TiO₂ nanocatalysts can be differentially modulated. The activity in FTS shows a volcano-like trend with increasing reduction temperature from 200 to 600°C. Such a variation of activity is characterized to be related to the activation of CO on the TiO_x overlayer at Ru/TiO₂ interfaces. Further theoretical calculations suggest that the formation of reduced TiO_x occurs facilely on the Ru surface, and it involves in the catalytic mechanism of FTS to facilitate the CO bond cleavage kinetically. This study provides a deep insight on the mechanism of TiO_x overlayer in FTS, and offers an effective approach to tuning catalytic reactivity of metal nanocatalysts on reducible oxides. © 2020, The Author(s).

Original language	English
Article number	3185
Journal	Nature Communications
Volume	11
Online published	24 Jun 2020
DOIs	https://doi.org/10.1038/s41467-020-17044-4
Publication status	Published - 2020
Externally published	Yes

Funding

This work was supported by the National Key R&D Program of China (2016YFA0202804), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB36030200), the National Natural Science Foundation of China (21978286, 21925803, 21776269), the Youth Innovation Promotion Association CAS.

Publisher's Copyright Statement

This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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Cite this

@article{4e79e893b6724eeab44764bf4fe52870,

title = "Tuning reactivity of Fischer–Tropsch synthesis by regulating TiOx overlayer over Ru/TiO2 nanocatalysts",

abstract = "The activity of Fischer–Tropsch synthesis (FTS) on metal-based nanocatalysts can be greatly promoted by the support of reducible oxides, while the role of support remains elusive. Herein, by varying the reduction condition to regulate the TiOx overlayer on Ru nanocatalysts, the reactivity of Ru/TiO2 nanocatalysts can be differentially modulated. The activity in FTS shows a volcano-like trend with increasing reduction temperature from 200 to 600°C. Such a variation of activity is characterized to be related to the activation of CO on the TiOx overlayer at Ru/TiO2 interfaces. Further theoretical calculations suggest that the formation of reduced TiOx occurs facilely on the Ru surface, and it involves in the catalytic mechanism of FTS to facilitate the CO bond cleavage kinetically. This study provides a deep insight on the mechanism of TiOx overlayer in FTS, and offers an effective approach to tuning catalytic reactivity of metal nanocatalysts on reducible oxides. {\textcopyright} 2020, The Author(s).",

author = "Yaru Zhang and Xiaoli Yang and Xiaofeng Yang and Hongmin Duan and Haifeng Qi and Yang Su and Binglian Liang and Huabing Tao and Bin Liu and De Chen and Xiong Su and Yanqiang Huang and Tao Zhang",

year = "2020",

doi = "10.1038/s41467-020-17044-4",

language = "English",

volume = "11",

journal = "Nature Communications",

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TY - JOUR

T1 - Tuning reactivity of Fischer–Tropsch synthesis by regulating TiOx overlayer over Ru/TiO2 nanocatalysts

AU - Zhang, Yaru

AU - Yang, Xiaoli

AU - Yang, Xiaofeng

AU - Duan, Hongmin

AU - Qi, Haifeng

AU - Su, Yang

AU - Liang, Binglian

AU - Tao, Huabing

AU - Liu, Bin

AU - Chen, De

AU - Su, Xiong

AU - Huang, Yanqiang

AU - Zhang, Tao

PY - 2020

Y1 - 2020

N2 - The activity of Fischer–Tropsch synthesis (FTS) on metal-based nanocatalysts can be greatly promoted by the support of reducible oxides, while the role of support remains elusive. Herein, by varying the reduction condition to regulate the TiOx overlayer on Ru nanocatalysts, the reactivity of Ru/TiO2 nanocatalysts can be differentially modulated. The activity in FTS shows a volcano-like trend with increasing reduction temperature from 200 to 600°C. Such a variation of activity is characterized to be related to the activation of CO on the TiOx overlayer at Ru/TiO2 interfaces. Further theoretical calculations suggest that the formation of reduced TiOx occurs facilely on the Ru surface, and it involves in the catalytic mechanism of FTS to facilitate the CO bond cleavage kinetically. This study provides a deep insight on the mechanism of TiOx overlayer in FTS, and offers an effective approach to tuning catalytic reactivity of metal nanocatalysts on reducible oxides. © 2020, The Author(s).

AB - The activity of Fischer–Tropsch synthesis (FTS) on metal-based nanocatalysts can be greatly promoted by the support of reducible oxides, while the role of support remains elusive. Herein, by varying the reduction condition to regulate the TiOx overlayer on Ru nanocatalysts, the reactivity of Ru/TiO2 nanocatalysts can be differentially modulated. The activity in FTS shows a volcano-like trend with increasing reduction temperature from 200 to 600°C. Such a variation of activity is characterized to be related to the activation of CO on the TiOx overlayer at Ru/TiO2 interfaces. Further theoretical calculations suggest that the formation of reduced TiOx occurs facilely on the Ru surface, and it involves in the catalytic mechanism of FTS to facilitate the CO bond cleavage kinetically. This study provides a deep insight on the mechanism of TiOx overlayer in FTS, and offers an effective approach to tuning catalytic reactivity of metal nanocatalysts on reducible oxides. © 2020, The Author(s).

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U2 - 10.1038/s41467-020-17044-4

DO - 10.1038/s41467-020-17044-4

M3 - RGC 21 - Publication in refereed journal

C2 - 32581251

SN - 2041-1723

VL - 11

JO - Nature Communications

JF - Nature Communications

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