La                         2                         O                         3                          nanoplate: An efficient electrocatalyst for artificial N                         2                          fixation to NH                         3                          with excellent selectivity at ambient condition

Bo Xu; Zaichun Liu; Weibin Qiu; Qian Liu; Xuping Sun; Guanwei Cui; Yuping Wu; Xiaoli Xiong

doi:10.1016/j.electacta.2018.12.084

La ₂ O ₃ nanoplate: An efficient electrocatalyst for artificial N ₂ fixation to NH ₃ with excellent selectivity at ambient condition

Bo Xu, Zaichun Liu, Weibin Qiu, Qian Liu, Xuping Sun, Guanwei Cui, Yuping Wu, Xiaoli Xiong

School of energy science and engineering

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

Identification of new effective and selective N ₂ reduction electrocatalyst is still of critical importance for fundamental and application research. Here, we report La ₂ O ₃ nanoplate performing as an efficient metal oxide catalyst for electrochemical N ₂ fixation to NH ₃ , which exhibits excellent selectivity and stability with a high Faradaic efficiency of 4.76% and a NH ₃ yield rate of 17.04 μg h ⁻¹ mg ⁻¹ _cat. at −0.8 V vs. reversible hydrogen electrode (RHE) in 0.1 M Na ₂ SO ₄ solution under atmospheric pressure. Density functional theory (DFT) calculation results show that La atoms in La ₂ O ₃ act as the active sites for efficiently adsorbing N ₂ . The optimal adsorption approach of N ₂ molecule on the (011) face of La ₂ O ₃ is end-on-two configuration which is highly activated. Thus La ₂ O ₃ exhibits high performance for electrochemical reduction of N ₂ .

Original language	English
Pages (from-to)	106-111
Number of pages	6
Journal	Electrochimica Acta
Volume	298
DOIs	https://doi.org/10.1016/j.electacta.2018.12.084
State	Published - 1 Mar 2019

Keywords

Catalyst
Electrolysis
La O nanoplate
N reduction reaction

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10.1016/j.electacta.2018.12.084

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Xu, B., Liu, Z., Qiu, W., Liu, Q., Sun, X., Cui, G., Wu, Y., & Xiong, X. (2019). La ₂ O ₃ nanoplate: An efficient electrocatalyst for artificial N ₂ fixation to NH ₃ with excellent selectivity at ambient condition. Electrochimica Acta, 298, 106-111. https://doi.org/10.1016/j.electacta.2018.12.084

Xu, Bo ; Liu, Zaichun ; Qiu, Weibin et al. / La ₂ O ₃ nanoplate : An efficient electrocatalyst for artificial N ₂ fixation to NH ₃ with excellent selectivity at ambient condition. In: Electrochimica Acta. 2019 ; Vol. 298. pp. 106-111.

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title = "La 2 O 3 nanoplate: An efficient electrocatalyst for artificial N 2 fixation to NH 3 with excellent selectivity at ambient condition",

abstract = " Identification of new effective and selective N 2 reduction electrocatalyst is still of critical importance for fundamental and application research. Here, we report La 2 O 3 nanoplate performing as an efficient metal oxide catalyst for electrochemical N 2 fixation to NH 3 , which exhibits excellent selectivity and stability with a high Faradaic efficiency of 4.76% and a NH 3 yield rate of 17.04 μg h −1 mg −1 cat. at −0.8 V vs. reversible hydrogen electrode (RHE) in 0.1 M Na 2 SO 4 solution under atmospheric pressure. Density functional theory (DFT) calculation results show that La atoms in La 2 O 3 act as the active sites for efficiently adsorbing N 2 . The optimal adsorption approach of N 2 molecule on the (011) face of La 2 O 3 is end-on-two configuration which is highly activated. Thus La 2 O 3 exhibits high performance for electrochemical reduction of N 2 .",

keywords = "Catalyst, Electrolysis, La O nanoplate, N reduction reaction",

author = "Bo Xu and Zaichun Liu and Weibin Qiu and Qian Liu and Xuping Sun and Guanwei Cui and Yuping Wu and Xiaoli Xiong",

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doi = "10.1016/j.electacta.2018.12.084",

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Xu, B, Liu, Z, Qiu, W, Liu, Q, Sun, X, Cui, G, Wu, Y & Xiong, X 2019, 'La ₂ O ₃ nanoplate: An efficient electrocatalyst for artificial N ₂ fixation to NH ₃ with excellent selectivity at ambient condition', Electrochimica Acta, vol. 298, pp. 106-111. https://doi.org/10.1016/j.electacta.2018.12.084

La ₂ O ₃ nanoplate: An efficient electrocatalyst for artificial N ₂ fixation to NH ₃ with excellent selectivity at ambient condition. / Xu, Bo; Liu, Zaichun; Qiu, Weibin et al.
In: Electrochimica Acta, Vol. 298, 01.03.2019, p. 106-111.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - La 2 O 3 nanoplate

T2 - An efficient electrocatalyst for artificial N 2 fixation to NH 3 with excellent selectivity at ambient condition

AU - Xu, Bo

AU - Liu, Zaichun

AU - Qiu, Weibin

AU - Liu, Qian

AU - Sun, Xuping

AU - Cui, Guanwei

AU - Wu, Yuping

AU - Xiong, Xiaoli

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Identification of new effective and selective N 2 reduction electrocatalyst is still of critical importance for fundamental and application research. Here, we report La 2 O 3 nanoplate performing as an efficient metal oxide catalyst for electrochemical N 2 fixation to NH 3 , which exhibits excellent selectivity and stability with a high Faradaic efficiency of 4.76% and a NH 3 yield rate of 17.04 μg h −1 mg −1 cat. at −0.8 V vs. reversible hydrogen electrode (RHE) in 0.1 M Na 2 SO 4 solution under atmospheric pressure. Density functional theory (DFT) calculation results show that La atoms in La 2 O 3 act as the active sites for efficiently adsorbing N 2 . The optimal adsorption approach of N 2 molecule on the (011) face of La 2 O 3 is end-on-two configuration which is highly activated. Thus La 2 O 3 exhibits high performance for electrochemical reduction of N 2 .

AB - Identification of new effective and selective N 2 reduction electrocatalyst is still of critical importance for fundamental and application research. Here, we report La 2 O 3 nanoplate performing as an efficient metal oxide catalyst for electrochemical N 2 fixation to NH 3 , which exhibits excellent selectivity and stability with a high Faradaic efficiency of 4.76% and a NH 3 yield rate of 17.04 μg h −1 mg −1 cat. at −0.8 V vs. reversible hydrogen electrode (RHE) in 0.1 M Na 2 SO 4 solution under atmospheric pressure. Density functional theory (DFT) calculation results show that La atoms in La 2 O 3 act as the active sites for efficiently adsorbing N 2 . The optimal adsorption approach of N 2 molecule on the (011) face of La 2 O 3 is end-on-two configuration which is highly activated. Thus La 2 O 3 exhibits high performance for electrochemical reduction of N 2 .

KW - Catalyst

KW - Electrolysis

KW - La O nanoplate

KW - N reduction reaction

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U2 - 10.1016/j.electacta.2018.12.084

DO - 10.1016/j.electacta.2018.12.084

M3 - 文章

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SN - 0013-4686

VL - 298

SP - 106

EP - 111

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Xu B, Liu Z, Qiu W, Liu Q, Sun X, Cui G et al. La ₂ O ₃ nanoplate: An efficient electrocatalyst for artificial N ₂ fixation to NH ₃ with excellent selectivity at ambient condition. Electrochimica Acta. 2019 Mar 1;298:106-111. doi: 10.1016/j.electacta.2018.12.084

La ₂ O ₃ nanoplate: An efficient electrocatalyst for artificial N ₂ fixation to NH ₃ with excellent selectivity at ambient condition

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Keywords

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