Ultrafine palladium nanoparticles anchored on NH2-functionalized reduced graphene oxide as efficient catalyst towards formic acid dehydrogenation |
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| Affiliation: | 1. Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Jilin Province Key Laboratory of Low Carbon Chemical Power Sources, Changchun 130022, Jilin, China;4. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China;5. University of Science and Technology of China (USTC), Hefei 230026, Anhui, China;6. National Research Center Kurchatov Institute, Kurchatov sq., 1, Moscow, Russia |
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| Abstract: | The development of active and stable catalyst is of significance for hydrogen generation from formic acid. Herein, a novel palladium catalyst with ultrafine metallic nanoparticles anchored on NH2-functionalized reduced graphene oxide (NH2-rGO) was synthesized by a facile wet chemical reduction process using sodium borohydride as the reducing agent. The TEM and XPS characterization results confirmed the successful functionalization of rGO with 3-aminopropyltriethoxysilane (APTES), which plays a very important role in evenly dispersing ultrafine Pd nanoparticles with a small average size of about 2.3 nm. As a result, the as-prepared Pd/NH2-rGO catalyst exhibited excellent activity with a high initial turnover frequency of 767 h−1 and 100% hydrogen selectivity, which was predominant among the currently available pure Pd catalysts towards formic acid dehydrogenation under room temperature. |
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| Keywords: | Formic acid Dehydrogenation Graphene oxide 3-Aminopropyltriethoxysilane Pd catalyst |
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