Journal article
Core–shell PdPb@Pd aerogels with multiply-twinned intermetallic nanostructures: facile synthesis with accelerated gelation kinetics and their enhanced electrocatalytic properties
Journal of materials chemistry. A, Materials for energy and sustainability, Vol.6(17), pp.7517-7521
2018
Handle:
https://hdl.handle.net/2376/105720
Abstract
Delicately engineering well-defined noble metal aerogels with favorable structural and compositional features is of vital importance for wide applications. Here, we reported a one-pot and facile method for synthesizing core–shell PdPb@Pd hydrogels/aerogels with multiply-twinned grains and an ordered intermetallic phase using sodium hypophosphite as a multifunctional reducing agent. Due to the accelerated gelation kinetics induced by increased reaction temperature and the specific function of sodium hypophosphite, the formation of hydrogels can be completed within 4 h. Owing to their unique porous structure and favorable geometric and electronic effects, the optimized PdPb@Pd aerogels exhibit enhanced electrochemical performance towards ethylene glycol oxidation with a mass activity of 5.8 times higher than Pd black.
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Details
- Title
- Core–shell PdPb@Pd aerogels with multiply-twinned intermetallic nanostructures: facile synthesis with accelerated gelation kinetics and their enhanced electrocatalytic properties
- Creators
- Chengzhou Zhu - School of Mechanical and Materials Engineering, Washington State University, Pullman, USA, Key Laboratory of Pesticide and Chemical BiologyQiurong Shi - School of Mechanical and Materials Engineering, Washington State University, Pullman, USAShaofang Fu - School of Mechanical and Materials Engineering, Washington State University, Pullman, USAJunhua Song - School of Mechanical and Materials Engineering, Washington State University, Pullman, USADan Du - School of Mechanical and Materials Engineering, Washington State University, Pullman, USA, Key Laboratory of Pesticide and Chemical BiologyDong Su - Center for Functional Nanomaterials, Brookhaven National Laboratory, USAMark H Engelhard - Environmental Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland, USAYuehe Lin - School of Mechanical and Materials Engineering, Washington State University, Pullman, USA
- Publication Details
- Journal of materials chemistry. A, Materials for energy and sustainability, Vol.6(17), pp.7517-7521
- Academic Unit
- School of Mechanical and Materials Engineering; Department of Chemistry
- Identifiers
- 99900547061801842
- Language
- English
- Resource Type
- Journal article