Green hydrogen ammonia synthesis in China under double carbon target: research on development basis and route |
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| HE Jingting, QI Guisheng, YANG Kun, JI Caili, JIA Yusheng, GUO Yujin, ZHANG Rongrong, LI Ning, WANG Yaning, ZENG Zhongyu, FAN Xiaolong. Low-crystallinity B-Co3O4 Nano-particles for Electrocatalytic Nitrate to Ammonia[J]. Journal of South China Normal University (Natural Science Edition), 2024, 56(1): 36-43. DOI: 10.6054/j.jscnun.2024005 |
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| Authors: | HE Jingting QI Guisheng YANG Kun JI Caili JIA Yusheng GUO Yujin ZHANG Rongrong LI Ning WANG Yaning ZENG Zhongyu FAN Xiaolong |
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| Affiliation: | 1.Shanxi Province Key Laboratory of Chemical Process Intensification/School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China;2.Department of Science, Taiyuan Institute of Technology, Taiyuan 030008, China |
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| Abstract: | A simple precipitation calcination process was used to synthesize B-Co3O4 NPs and apply them as electrocatalytic reduction of nitrate by ammonia. Research has found that B-Co3O4 NPs have high electrocatalytic activity and when the voltage is -0.8(V vs. RHE). It attains an impressive NH3 yield of 20 mg/(h ·cm2) and 94% (FE). In NaOH (1 mol/L) solution containing 0.1 mol/L NaNO3. When the voltage is -0.6 V (vs. RHE), it corresponds to a NH3 yield of 17.2 mg/(h ·cm2) and 95% FE. The excellent electrochemical performance of electrode material B-Co3O4 NPs is attributed to the effective inhibition of hydrogen evolution reaction by B—O in the electrocatalytic process. The low crystallinity and special porous structure of B-Co3O4 NPs effectively improve the adsorption and reduction activity of NO3-, promoting electron transfer and transfer. |
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| Keywords: | B-Co3O4 NPs electrocatalysis nitrate reduction ammonia synthesis |
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