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Updated: May 25, 2025
Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Defects-rich PtRhCoNiMn high-entropy alloyed nanodendrites: A high-performance and sustainable catalyst for
Lu Zhang1, Zuo-Feng Jiang1, Ya-Cheng Shi1
1Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
Abstract:
High-entropy alloy (HEA) represents innovative frontier in catalysis, which offers many advantages originated from its multiple metals and structural attributes. Herein, a PtRhCoNiMn nanodendritic HEA (NDHEA) was synthesized by a simplified one-pot oil-phased co-reduction method, as evidenced by a set of characterization techniques. The resulting catalyst significantly reduced the reliance on costly Pt while achieving exceptional catalytic performance, as certificated by hydrogenation of 4-nitrophenol (4-NP) and Cr (VI) as proof-of-concept models, showing normalized rate constant (knor) values of 5.38 × 103 and 1.06 × 102 min-1 g-1 for 4-NP and Cr(VI) reduction, respectively, along with the conversion rate of 96 % after seven consecutive cycles. Further, the corresponding catalytic mechanism was elaborated by thoroughly investigating the effects of the incorporated metals and unique structures within the alloyed catalyst. This work opens a valuable avenue for preparation of advanced HEAs catalysts for sustainable removal of pollutants in various chemical processes, particularly in wastewater treatments, where such high-performance and durable catalysts are sorely needed.
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