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3 results on '"semi‐metal 1T′ phase"'

1. Semi‐metal 1T′ phase MoS2 nanosheets for promoted electrocatalytic nitrogen reduction

Author

Xuesong Xu, Yian Wang, Xiaoyue Chen, Xiu Qian, Zhangqian Liang, Hongzhi Cui, Jian Tian, and Minhua Shao

Subjects
electrocatalytic nitrogen reduction, MoS2, semi‐metal 1T′ phase, TiO2 hollow nanosphere, urchin‐like, Renewable energy sources, TJ807-830, Environmental sciences, GE1-350
Abstract

Abstract Herein, we constructed urchin‐like TiO2 hollow nanospheres (HNSs) by hydrothermal targeted etching, and used it as a substrate to load semi‐metal 1T′‐MoS2 nanosheets as effective nitrogen reduction reaction (NRR) electrocatalysts. 1T′‐MoS2/TiO2 HNSs composites display outstanding NRR activity with the highest NH3 yield of 29.62 μg h−1 mg−1cat. at −0.75 V versus RHE. Besides, the highest FE of 24.9% is obtained at −0.65 V. The remarkable NRR performance is attributed to the high conductivity of 1T′‐MoS2 and the urchin‐like structure of TiO2 hollow nanospheres. DFT calculations display that the 1T′‐MoS2 in 1T′‐MoS2/TiO2 makes the activation and further reduction of *N2 more thermodynamically favorable than pristine TiO2, contributing to better NRR catalytic activities. 15N isotopic labeling experiment reveals that N in produced NH3 comes from N2 of electrolyte.

Published
2021
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2. Semi-metal 1T' phase MoS2 nanosheets for promoted electrocatalytic nitrogen reduction

Author

Xu, Xuesong, Wang, Yian, Chen, Xiaoyue, Qian, Xiu, Liang, Zhangqian, Cui, Hongzhi, Tian, Jian, Shao, Minhua, Xu, Xuesong, Wang, Yian, Chen, Xiaoyue, Qian, Xiu, Liang, Zhangqian, Cui, Hongzhi, Tian, Jian, and Shao, Minhua

Abstract

Herein, we constructed urchin-like TiO2 hollow nanospheres (HNSs) by hydrothermal targeted etching, and used it as a substrate to load semi-metal 1T'-MoS2 nanosheets as effective nitrogen reduction reaction (NRR) electrocatalysts. 1T '-MoS2/TiO2 HNSs composites display outstanding NRR activity with the highest NH3 yield of 29.62 mu g h(-1) mg(cat)(.)(-1) at -0.75 V versus RHE. Besides, the highest FE of 24.9% is obtained at -0.65 V. The remarkable NRR performance is attributed to the high conductivity of 1T '-MoS2 and the urchin-like structure of TiO2 hollow nanospheres. DFT calculations display that the 1T'-MoS2 in 1T '-MoS2/TiO2 makes the activation and further reduction of {*}N-2 more thermodynamically favorable than pristine TiO2, contributing to better NRR catalytic activities. N-15 isotopic labeling experiment reveals that N in produced NH3 comes from N-2 of electrolyte.

Published
2021

3. Semi‐metal <scp>1T</scp> ′ phase <scp> MoS 2 </scp> nanosheets for promoted electrocatalytic nitrogen reduction

Author

Xiaoyue Chen, Jian Tian, Zhangqian Liang, Yian Wang, Hongzhi Cui, Xuesong Xu, Xiu Qian, and Minhua Shao

Subjects
Inorganic chemistry, TJ807-830, chemistry.chemical_element, Nitrogen, electrocatalytic nitrogen reduction, Renewable energy sources, Environmental sciences, Reduction (complexity), Metal, chemistry, Phase (matter), visual_art, visual_art.visual_art_medium, semi‐metal 1T′ phase, GE1-350, MoS2, TiO2 hollow nanosphere, urchin‐like
Abstract

Herein, we constructed urchin‐like TiO2 hollow nanospheres (HNSs) by hydrothermal targeted etching, and used it as a substrate to load semi‐metal 1T′‐MoS2 nanosheets as effective nitrogen reduction reaction (NRR) electrocatalysts. 1T′‐MoS2/TiO2 HNSs composites display outstanding NRR activity with the highest NH3 yield of 29.62 μg h−1 mg−1cat. at −0.75 V versus RHE. Besides, the highest FE of 24.9% is obtained at −0.65 V. The remarkable NRR performance is attributed to the high conductivity of 1T′‐MoS2 and the urchin‐like structure of TiO2 hollow nanospheres. DFT calculations display that the 1T′‐MoS2 in 1T′‐MoS2/TiO2 makes the activation and further reduction of *N2 more thermodynamically favorable than pristine TiO2, contributing to better NRR catalytic activities. 15N isotopic labeling experiment reveals that N in produced NH3 comes from N2 of electrolyte.

Published
2021
Full Text
View/download PDF

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