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Intermetallic Pd3Pb ultrathin nanoplate-constructed flowers with low-coordinated edge sites boost oxygen reduction performance.
Nanoscale 2019; 11(37):17301-17307N

Abstract

Although tremendous efforts have been devoted to exploring non-Pt based electrocatalysts toward the oxygen reduction reaction (ORR), achievements in both catalytic activity and durability are still far from satisfactory. Here, we report a facile approach for the synthesis of intermetallic Pd3Pb ultrathin nanoplate-constructed flowers. Such highly opened hierarchical nanostructures with an ordered phase and low-coordinated edge sites exhibited a substantially enhanced activity toward the ORR. Especially, the intermetallic Pd3Pb nanoflowers achieved a record-breaking mass activity (1.14 mA μgPd-1) in an alkaline solution at 0.9 V vs. a reversible hydrogen electrode among the reported Pd-based ORR electrocatalysts to date, which was 1.8, 3.9 and 11.4 times higher than those of intermetallic Pd3Pb nanocubes, Pd3Pb dendrites and commercial Pt/C, respectively. More importantly, the intermetallic Pd3Pb nanoflowers also showed a higher durability with only 23.7% loss in mass activity after 10 000 cycles compared to the commercial Pt/C (35% loss in mass activity) due to their chemically stable intermetallic structures.

Authors+Show Affiliations

State Key Laboratory of Silicon Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China. msezhanghui@zju.edu.cn.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31513211

Citation

Luo, Sai, et al. "Intermetallic Pd3Pb Ultrathin Nanoplate-constructed Flowers With Low-coordinated Edge Sites Boost Oxygen Reduction Performance." Nanoscale, vol. 11, no. 37, 2019, pp. 17301-17307.
Luo S, Ou Y, Li L, et al. Intermetallic Pd3Pb ultrathin nanoplate-constructed flowers with low-coordinated edge sites boost oxygen reduction performance. Nanoscale. 2019;11(37):17301-17307.
Luo, S., Ou, Y., Li, L., Li, J., Wu, X., Jiang, Y., ... Yang, D. (2019). Intermetallic Pd3Pb ultrathin nanoplate-constructed flowers with low-coordinated edge sites boost oxygen reduction performance. Nanoscale, 11(37), pp. 17301-17307. doi:10.1039/c9nr04021h.
Luo S, et al. Intermetallic Pd3Pb Ultrathin Nanoplate-constructed Flowers With Low-coordinated Edge Sites Boost Oxygen Reduction Performance. Nanoscale. 2019 Sep 26;11(37):17301-17307. PubMed PMID: 31513211.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Intermetallic Pd3Pb ultrathin nanoplate-constructed flowers with low-coordinated edge sites boost oxygen reduction performance. AU - Luo,Sai, AU - Ou,Yang, AU - Li,Lei, AU - Li,Junjie, AU - Wu,Xingqiao, AU - Jiang,Yi, AU - Gao,Mingxi, AU - Yang,Xiaofang, AU - Zhang,Hui, AU - Yang,Deren, PY - 2019/9/13/pubmed PY - 2019/9/13/medline PY - 2019/9/13/entrez SP - 17301 EP - 17307 JF - Nanoscale JO - Nanoscale VL - 11 IS - 37 N2 - Although tremendous efforts have been devoted to exploring non-Pt based electrocatalysts toward the oxygen reduction reaction (ORR), achievements in both catalytic activity and durability are still far from satisfactory. Here, we report a facile approach for the synthesis of intermetallic Pd3Pb ultrathin nanoplate-constructed flowers. Such highly opened hierarchical nanostructures with an ordered phase and low-coordinated edge sites exhibited a substantially enhanced activity toward the ORR. Especially, the intermetallic Pd3Pb nanoflowers achieved a record-breaking mass activity (1.14 mA μgPd-1) in an alkaline solution at 0.9 V vs. a reversible hydrogen electrode among the reported Pd-based ORR electrocatalysts to date, which was 1.8, 3.9 and 11.4 times higher than those of intermetallic Pd3Pb nanocubes, Pd3Pb dendrites and commercial Pt/C, respectively. More importantly, the intermetallic Pd3Pb nanoflowers also showed a higher durability with only 23.7% loss in mass activity after 10 000 cycles compared to the commercial Pt/C (35% loss in mass activity) due to their chemically stable intermetallic structures. SN - 2040-3372 UR - https://www.unboundmedicine.com/medline/citation/31513211/Intermetallic_Pd3Pb_ultrathin_nanoplate-constructed_flowers_with_low-coordinated_edge_sites_boost_oxygen_reduction_performance L2 - https://doi.org/10.1039/c9nr04021h DB - PRIME DP - Unbound Medicine ER -