Single-atom tailoring of platinum nanocatalysts for high-performance multifunctional electrocatalysis
By Mufang Li, Kaining Duanmu, Chengzhang Wan, T. Cheng, Liang Zhang, S. Dai, Wenxin Chen, Zipeng Zhao, Peng Li, H. Fei and 14 more. Nature Catalysis, 2019
521 citations recorded by the source corpus.
Platinum-based nanocatalysts play a crucial role in various electrocatalytic systems that are important for renewable, clean energy conversion, storage and utilization. However, the scarcity and high cost of Pt seriously limit the practical application of these catalysts. Decorating Pt catalysts with other transition metals offers an effective pathway to tailor their catalytic properties, but often at the sacrifice of the electrochemical active surface area (ECSA). Here we report a single-atom tailoring strategy to boost the activity of Pt nanocatalysts with minimal loss in surface active sites. By starting with PtNi alloy nanowires and using a partial electrochemical dealloying approach, we create single-nickel-atom-modified Pt nanowires with an optimum combination of specific activity and ECSA for the hydrogen evolution, methanol oxidation and ethanol oxidation reactions. The single-atom tailoring approach offers an effective strategy to optimize the activity of surface Pt atoms and enhance the mass activity for diverse reactions, opening a general pathway to the design of highly efficient and durable precious metal-based catalysts.Platinum plays a crucial role in various electrocatalytic systems, but its scarcity and cost limit its practical application. Now, a single-atom tailoring strategy applied to platinum nanowires maximizes their specific and mass activities for the hydrogen evolution and methanol and ethanol oxidation reactions.
Subfields: Materials Chemistry, Organic Chemistry, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/27ab310008b6e4b9aecd03e02e6d8ff90fa0ab41
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- Chengna Dai
- Xin Liang
- Biaohua Chen
- Cong Zhang
- Xiaolei Wang
- Bin Wu
- Gangqiang Yu
- Ruinian Xu
Citations in the corpus
- H2 In Situ Inducing Strategy on Pt Surface Segregation Over Low Pt Doped PtNi5 Nanoalloy with Superhigh Alkaline HER Activity (2020, background): “36 To overcome these problems, considerable efforts have been devoted to making the Pt 37 electrocatalysts being less costly but more efficient, especially for the scenario of the alkaline38 HER due to its relatively mild reaction condition which allows the non-Pt group metals being 39 incorporated ”