Single-atom tailoring of platinum nanocatalysts for high-performance multifunctional electrocatalysis
- Univ. of California, Los Angeles, CA (United States). Dept. of Materials Science and Engineering, and Dept. of Chemistry
- Univ. of California, Los Angeles, CA (United States). Dept. of Chemical and Biomolecular Engineering
- Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry
- California Inst. of Technology (CalTech), Pasadena, CA (United States). Materials and Process Simulation Center; Soochow Univ., Suzhou, Jiangsu (China). Inst. of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Lab. for Carbon-Based Functional Materials & Devices, Joint International Research Lab. of Carbon-Based Functional Materials and Devices
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Univ. of California, Irvine, CA (United States). Dept. of Materials Science and Engineering
- Tsinghua Univ., Beijing (China). Dept. of Chemistry
- Univ. of California, Los Angeles, CA (United States). Dept. of Materials Science and Engineering
- Tsinghua Univ. Beijing (China). 9National Center for Electron; Microscopy in Beijing, School of Materials Science and Engineering
- Tianjin Univ. of Technology, Tianjin (China). Center for Electron Microscopy
- Soochow Univ., Suzhou, Jiangsu (China). Inst. of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Lab. for Carbon-Based Functional Materials & Devices, Joint International Research Lab. of Carbon-Based Functional Materials and Devices
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); Univ. of California, Irvine, CA (United States). Irvine Materials Research Institute (IMRI)
- California Inst. of Technology (CalTech), Pasadena, CA (United States). Materials and Process Simulation Center
- Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry, and Dept. of Chemical and Biomolecular Engineering; Univ. of California, Los Angeles, CA (United States). California NanoSystems Inst.
- Univ. of California, Los Angeles, CA (United States). Dept. of Materials Science and Engineering; Univ. of California, Los Angeles, CA (United States). California NanoSystems Inst.
- Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry; Univ. of California, Los Angeles, CA (United States). California NanoSystems Inst.
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.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1559808
- Journal Information:
- Nature Catalysis, Vol. 2, Issue 6; ISSN 2520-1158
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
Shaping electrocatalysis through tailored nanomaterials
In Situ X-ray Absorption Spectroscopy of PtNi-Nanowire/Vulcan XC-72R under Oxygen Reduction Reaction in Alkaline Media