Volume 39, Issue 7 pp. 1898-1904
Concise Report

Bioinspired Activation of N2 on Asymmetrical Coordinated Fe Grafted 1T MoS2 at Room Temperature

Jiaojiao Guo

Jiaojiao Guo

School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240 China

These authors contribute equally to this work.

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Maoyu Wang

Maoyu Wang

School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, 97331 USA

These authors contribute equally to this work.

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Liang Xu

Liang Xu

Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu, 215123 China

These authors contribute equally to this work.

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Xiaomin Li

Xiaomin Li

School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240 China

Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai, 200240 China

These authors contribute equally to this work.

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Asma Iqbal

Asma Iqbal

School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240 China

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George E. Sterbinsky

George E. Sterbinsky

Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 60431 USA

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Hao Yang

Hao Yang

Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu, 215123 China

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Miao Xie

Miao Xie

Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu, 215123 China

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Jiantao Zai

Corresponding Author

Jiantao Zai

School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Zhenxing Feng

Corresponding Author

Zhenxing Feng

School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, 97331 USA

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Tao Cheng

Corresponding Author

Tao Cheng

Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu, 215123 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Xuefeng Qian

Xuefeng Qian

School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240 China

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First published: 11 March 2021
Citations: 5

Dedicated to Professor Yitai Qian on the Occasion of His 80th Birthday.

Main observation and conclusion

Inspired by the nitrogen fixation process on MoFe nitrogenase, asymmetrical coordinated Fe grafted onto 1T MoS2 were successfully synthesized. The unique electron-rich structure with asymmetrical coordination made the 1T Fe0.1Mo0.9S2 layered material actively react with water and dinitrogen at room temperature and atmosphere pressure. Subsequently, ammonia can be produced with a yield of ~800 μmol (NH4+) g−1 (12.5% yield in mole). The activation, fixation and reduction of dinitrogen were confirmed by isotopically labeled experiments. The location and the specific coordination environment of grafted Fe in Fe-Mo-S were further determined by X-ray absorption spectroscopy analysis. Our work demonstrates that the nitrogen fixation and reduction for ammonia at room temperature without any chemical and electrochemical assistance is distinctly different from traditional bionic-inspired nitrogen fixation process. The mechanism of the activation and reduction of N2 was further investigated by density functional theory calculation and Raman spectra. Compared with 1T MoS2, the enriched electron nature and asymmetrical coordination of Fe in Fe-Mo-S materials play a critical role in the bioinspired activation of N2 at ambient condition.image

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