Journal article
Intermetallic Pd 3 Pb nanowire networks boost ethanol oxidation and oxygen reduction reactions with significantly improved methanol tolerance
Journal of materials chemistry. A, Materials for energy and sustainability, Vol.5(45), pp.23952-23959
2017
Abstract
Intermetallic nanocrystals are currently receiving extensive attention due to their well-defined crystal structures, highly ordered atomic distribution and superior structural stability that endow them with optimized catalytic activities, stabilities and high selectivity for use as electrocatalysts for fuel cells. Here, for the first time, we reported the facile synthesis of intermetallic Pd
3
Pb nanowire networks (IM-Pd
3
Pb NNs) with a one-step wet-chemical strategy at a relatively low temperature (
i.e.
170 °C) in 1 h. The as-prepared IM-Pd
3
Pb NNs exhibited superior bifunctional catalytic performances toward the oxygen reduction reaction (ORR) and the ethanol oxidation reaction (EtOR) compared to commercial Pt/C and Pd black, respectively. Significantly, IM-Pd
3
Pb NNs also showed excellent methanol- and CO-tolerant ability as ORR cathode and EtOR anode electrocatalysts, respectively. The electrochemically active surface area and mass activity of IM-Pd
3
Pb NNs are about 3.4 times and 2 times higher than those of Pd black toward the EtOR, respectively. As the Pt-free bifunctional electrocatalysts, 3D IM-Pd
3
Pb architectures with exceptional catalytic performances hold great promise in various applications such as energy conversion and storage devices, sensors, electronics, optics and so on.
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Details
- Title
- Intermetallic Pd 3 Pb nanowire networks boost ethanol oxidation and oxygen reduction reactions with significantly improved methanol tolerance
- Creators
- Qiurong Shi - Washington State UniversityChengzhou Zhu - Washington State UniversityCuixia Bi - Shandong UniversityHaibing Xia - Shandong UniversityMark H. Engelhard - Pacific Northwest National LaboratoryDan Du - Washington State UniversityYuehe Lin - Washington State University
- Publication Details
- Journal of materials chemistry. A, Materials for energy and sustainability, Vol.5(45), pp.23952-23959
- Academic Unit
- School of Mechanical and Materials Engineering
- Number of pages
- 8
- Identifiers
- 99901227848301842
- Language
- English
- Resource Type
- Journal article