| Noble metal aerogels rapidly synthesized by ultrasound for electrocatalytic reaction |
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| 作者姓名： | Yueyue Yuan Huan Zhao Wenxia Xv Dan Zhang Zuochao Wang Hongdong Li Yingnan Qin Shaoxiang Li Jianping Lai Lei Wang |
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| 作者单位： | 1. Key Laboratory of Eco-chemical Engineering, Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology;2. Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology |
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| 基金项目： | sponsored by the National Natural Science Foundation of China (Nos. 51772162, 22001143 and 52072197)；;Natural Science Foundation of Shandong Province(No. ZR2020YQ34)；;Major Basic Research Program of Natural Science Foundation of Shandong Province (No.ZR2020ZD09)； |
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| 摘 要： | Noble metal aerogels（NMAs）, belonging to the porous material, have exhibited excellent catalytic performance. Although the synthesis method continues to improve, it still exists some problems which hindered the experimental process, such as high concentration of noble metal precursors, long synthesis cycle, expensive production cost, and uncontrollable ligament length. In this work, ultrasonic wave and reducing agent Na BH4 were simultaneously applied to gelation process. With the cav...
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| 收稿时间： | 17 June 2021 |
Noble metal aerogels rapidly synthesized by ultrasound for electrocatalytic reaction |
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| Yueyue Yuan,Huan Zhao,Wenxia Xv,Dan Zhang,Zuochao Wang,Hongdong Li,Yingnan Qin,Shaoxiang Li,Jianping Lai,Lei Wang.Noble metal aerogels rapidly synthesized by ultrasound for electrocatalytic reaction[J].Chinese Chemical Letters,2022,33(4):2021-2025. |
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| Institution: | 1. Key Laboratory of Eco-chemical Engineering, Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;2. Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China |
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| Abstract: | Noble metal aerogels (NMAs), belonging to the porous material, have exhibited excellent catalytic performance. Although the synthesis method continues to improve, it still exists some problems which hindered the experimental process, such as high concentration of noble metal precursors, long synthesis cycle, expensive production cost, and uncontrollable ligament length. In this work, ultrasonic wave and reducing agent NaBH4 were simultaneously applied to gelation process. With the cavitation of ultrasound, it can generate huge energy with heating and stirring, thus gelation reaction proceeded quickly, and even completed the process in only a few seconds, that is much faster than the recorded. A wide concentration range was successfully expanded from 0.02 mmol/L to 62.5 mmol/L. Further, we extended this method to a variety of noble metal elements (Au, Ru, Rh, Ag, Pt, Pd), and this method is adaptive for the synthesis of single metal aerogels (Au, Ag, Ru, Rh, Pd), bimetal and trimetal aerogels (Au-Ag, Au-Rh, Au-Ru, Au-Pt, Au-Pd, Au-Pt-Pd). In addition, the ligament size of alloy aerogels are 10 nm or less. Moreover, their brilliant properties were demonstrated in hydrogen evolution reaction (HER) and ethanol oxidation reaction (EOR). |
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