@article{73ce77a99ce54ee4b6bfe151cf77b512,
title = "Local heterojunctions of atomic Pt clusters boost the oxygen reduction activity of Rucore@Pdshell nanocrystallites",
abstract = "Ru-Pd nanoparticles (NPs) with Pt atomic cluster modification were synthesized using polyol reactions with a sequence design. Such modification resulted in the formation of Ru in the inner core and Pd on the outer shell structure (Rucore-Pdshell) via transmetalation between the Pt ion and Pd atom followed by thermal reduction. The Pt modified Rucore-Pdshell NPs improve the on-set potential by 0.041 volt and reduce Pt loading to less than ∼2%, as compared with that of carbon supported Pt NPs. For the optimum case, the MA (current degradation) of Ru-Pd NPs is improved (suppressed) by ∼345% (18.1%) in the accelerated degradation test (ADT) at 0.85 volt (vs. RHE) for 5000 cycles by intercalating Pt clusters (2 to 9 at%) in the NP surface. These improvements are attributed to the electron localization and reinforcement by surface Pt clusters, which facilitated the oxygen reduction activity and chemical durability of NPs.",
author = "Wang, {Jeng Han} and Wang, {Kuan Wen} and Chen, {Tian Lin} and Wang, {Chia Hsin} and Huang, {Yu Ming} and Hsu, {Yang Yang} and Chen, {Tsan Yao}",
note = "Funding Information: The authors thank the staff of National Synchrotron Radiation Research Center (NSRRC), Hsinchu, Taiwan for helping in various synchrotron-based measurements. The VASP based DFT calculations were performed and the results were obtained by using the clusters at the National Center for High-Performance Computing, Taiwan. The EDX map and HAADF images were observed by using a TEM-FEI Osiris platform with a four detector EDS system (Oxford) at MSSCORP CO., LTD. T.-Y. Chen acknowledges the funding support from the National Tsing Hua University, Taiwan (N103K30211 and 103N1200K3) and the Ministry of Science and Technology, Taiwan (MOST 103-2112-M-007-022-MY3 and MOST 105-3113-E-006-019-CC2) Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",
year = "2016",
doi = "10.1039/C6TA06995A",
language = "English",
volume = "4",
pages = "17848--17856",
journal = "Journal of Materials Chemistry A",
issn = "2050-7488",
publisher = "Royal Society of Chemistry",
number = "45",
}
