Microwave-accelerated hydrolysis for hydrogen production over a cobalt-loaded multi-walled carbon nanotube-magnetite composite catalyst

Chunlin Luo; Shuai Liu; Gang Yang; Peng Jiang; Xiang Luo; Yipei Chen; Mengxia Xu; Edward Lester; Tao Wu

doi:10.1016/j.apenergy.2022.120538

Microwave-accelerated hydrolysis for hydrogen production over a cobalt-loaded multi-walled carbon nanotube-magnetite composite catalyst

Chunlin Luo, Shuai Liu, Gang Yang, Peng Jiang, Xiang Luo, Yipei Chen, Mengxia Xu, Edward Lester, Tao Wu

Research output: Journal Publication › Article › peer-review

15 Citations (Scopus)

Abstract

Microwave (MW) irradiation is a promising option for the intensification of chemical reaction processes and has been applied in the promotion of many catalytic reactions. Herein, the (CNTs-Fe₃O₄)-Co nanocomposites were designed as microwave-responsive catalysts and was fabricated under a controlled manner. The experimental results showed that MW irradiation can lead to the hydrogen generation rate (HGR) of the (CNTs-Fe₃O₄)_(1:4)-Co (10 wt%) catalyst being boosted from 75.0 to 95.4% as compared with conventional heating under the temperature range of 40 to 60℃. Moreover, the evaluation of the catalytic performance of the (CNTs-Fe₃O₄)_(1:4) composite with different Co loadings and DFT calculations were carried out to verify the synergistic effect of cobalt and Fe₃O₄ sites of the (CNTs-Fe₃O₄)_(1:4)-Co (10 wt%) catalyst. Furthermore, the pre-exponential factor (A) of NaBH₄ hydrolysis under MW heating was found to be approximately 15 times higher than that of conventional heating, implying that MW irradiation significantly improved the effective collision frequency of the atoms at the reaction interface of the catalyst, resulting in a higher number of active sites on the surface of the (CNTs-Fe₃O₄)_(1:4)-Co (10 wt%) catalyst. Additionally, the existence of the non-thermal effect of MW irradiation was studied by using a specially designed experimental set-up. The results showed that MW thermal and non-thermal effects contributed to the enhancement of HGR.

Original language	English
Article number	120538
Journal	Applied Energy
Volume	333
DOIs	https://doi.org/10.1016/j.apenergy.2022.120538
Publication status	Published - 1 Mar 2023

Keywords

(CNTs-FeO)-Co catalysts
Hydrogen generation
Microwave irradiation
NaBH hydrolysis
Non-thermal effect

ASJC Scopus subject areas

Building and Construction
Mechanical Engineering
General Energy
Management, Monitoring, Policy and Law

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.apenergy.2022.120538

Cite this

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title = "Microwave-accelerated hydrolysis for hydrogen production over a cobalt-loaded multi-walled carbon nanotube-magnetite composite catalyst",

abstract = "Microwave (MW) irradiation is a promising option for the intensification of chemical reaction processes and has been applied in the promotion of many catalytic reactions. Herein, the (CNTs-Fe3O4)-Co nanocomposites were designed as microwave-responsive catalysts and was fabricated under a controlled manner. The experimental results showed that MW irradiation can lead to the hydrogen generation rate (HGR) of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst being boosted from 75.0 to 95.4% as compared with conventional heating under the temperature range of 40 to 60℃. Moreover, the evaluation of the catalytic performance of the (CNTs-Fe3O4)(1:4) composite with different Co loadings and DFT calculations were carried out to verify the synergistic effect of cobalt and Fe3O4 sites of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst. Furthermore, the pre-exponential factor (A) of NaBH4 hydrolysis under MW heating was found to be approximately 15 times higher than that of conventional heating, implying that MW irradiation significantly improved the effective collision frequency of the atoms at the reaction interface of the catalyst, resulting in a higher number of active sites on the surface of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst. Additionally, the existence of the non-thermal effect of MW irradiation was studied by using a specially designed experimental set-up. The results showed that MW thermal and non-thermal effects contributed to the enhancement of HGR.",

keywords = "(CNTs-FeO)-Co catalysts, Hydrogen generation, Microwave irradiation, NaBH hydrolysis, Non-thermal effect",

author = "Chunlin Luo and Shuai Liu and Gang Yang and Peng Jiang and Xiang Luo and Yipei Chen and Mengxia Xu and Edward Lester and Tao Wu",

note = "Funding Information: This research is partially sponsored by Ningbo Science and Technologies Innovation 2025 Major Special Project (2018B10027) and China Postdoctoral Science Foundation (2021M692220). The Zhejiang Provincial Department of Science and Technology is acknowledged for its financial support to the Provincial Key Laboratory (2020E10018). The University of Nottingham Ningbo China provides full scholarships to the first author. Publisher Copyright: {\textcopyright} 2022",

year = "2023",

month = mar,

day = "1",

doi = "10.1016/j.apenergy.2022.120538",

language = "English",

volume = "333",

journal = "Applied Energy",

issn = "0306-2619",

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TY - JOUR

T1 - Microwave-accelerated hydrolysis for hydrogen production over a cobalt-loaded multi-walled carbon nanotube-magnetite composite catalyst

AU - Luo, Chunlin

AU - Liu, Shuai

AU - Yang, Gang

AU - Jiang, Peng

AU - Luo, Xiang

AU - Chen, Yipei

AU - Xu, Mengxia

AU - Lester, Edward

AU - Wu, Tao

N1 - Funding Information: This research is partially sponsored by Ningbo Science and Technologies Innovation 2025 Major Special Project (2018B10027) and China Postdoctoral Science Foundation (2021M692220). The Zhejiang Provincial Department of Science and Technology is acknowledged for its financial support to the Provincial Key Laboratory (2020E10018). The University of Nottingham Ningbo China provides full scholarships to the first author. Publisher Copyright: © 2022

PY - 2023/3/1

Y1 - 2023/3/1

N2 - Microwave (MW) irradiation is a promising option for the intensification of chemical reaction processes and has been applied in the promotion of many catalytic reactions. Herein, the (CNTs-Fe3O4)-Co nanocomposites were designed as microwave-responsive catalysts and was fabricated under a controlled manner. The experimental results showed that MW irradiation can lead to the hydrogen generation rate (HGR) of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst being boosted from 75.0 to 95.4% as compared with conventional heating under the temperature range of 40 to 60℃. Moreover, the evaluation of the catalytic performance of the (CNTs-Fe3O4)(1:4) composite with different Co loadings and DFT calculations were carried out to verify the synergistic effect of cobalt and Fe3O4 sites of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst. Furthermore, the pre-exponential factor (A) of NaBH4 hydrolysis under MW heating was found to be approximately 15 times higher than that of conventional heating, implying that MW irradiation significantly improved the effective collision frequency of the atoms at the reaction interface of the catalyst, resulting in a higher number of active sites on the surface of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst. Additionally, the existence of the non-thermal effect of MW irradiation was studied by using a specially designed experimental set-up. The results showed that MW thermal and non-thermal effects contributed to the enhancement of HGR.

AB - Microwave (MW) irradiation is a promising option for the intensification of chemical reaction processes and has been applied in the promotion of many catalytic reactions. Herein, the (CNTs-Fe3O4)-Co nanocomposites were designed as microwave-responsive catalysts and was fabricated under a controlled manner. The experimental results showed that MW irradiation can lead to the hydrogen generation rate (HGR) of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst being boosted from 75.0 to 95.4% as compared with conventional heating under the temperature range of 40 to 60℃. Moreover, the evaluation of the catalytic performance of the (CNTs-Fe3O4)(1:4) composite with different Co loadings and DFT calculations were carried out to verify the synergistic effect of cobalt and Fe3O4 sites of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst. Furthermore, the pre-exponential factor (A) of NaBH4 hydrolysis under MW heating was found to be approximately 15 times higher than that of conventional heating, implying that MW irradiation significantly improved the effective collision frequency of the atoms at the reaction interface of the catalyst, resulting in a higher number of active sites on the surface of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst. Additionally, the existence of the non-thermal effect of MW irradiation was studied by using a specially designed experimental set-up. The results showed that MW thermal and non-thermal effects contributed to the enhancement of HGR.

KW - (CNTs-FeO)-Co catalysts

KW - Hydrogen generation

KW - Microwave irradiation

KW - NaBH hydrolysis

KW - Non-thermal effect

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U2 - 10.1016/j.apenergy.2022.120538

DO - 10.1016/j.apenergy.2022.120538

M3 - Article

AN - SCOPUS:85145983883

SN - 0306-2619

VL - 333

JO - Applied Energy

JF - Applied Energy

M1 - 120538

ER -

Microwave-accelerated hydrolysis for hydrogen production over a cobalt-loaded multi-walled carbon nanotube-magnetite composite catalyst

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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