Journal article
Ultrathin dendritic IrTe nanotubes for an efficient oxygen evolution reaction in a wide pH range
Journal of materials chemistry. A, Materials for energy and sustainability, Vol.6(19), pp.8855-8859
2018
Abstract
The shape control of Ir-based nanostructured materials, which are considered as the state-of-the-art anode electrocatalyst candidates toward the oxygen evolution reaction (OER), has been rarely reported. Here, we reported an efficient synthesis of ultrathin dendritic IrTe nanotubes (NTs) via a galvanic replacement reaction using Te nanowires as the template at 190 degrees C for 1 h. The as-obtained IrTe NTs exhibited improved electrocatalytic activity and stability toward the OER with a much smaller overpotential of 290 mV and Tafel slope of 60.3 mV dec(-1) to attain a current density of 10 mA cm(-2) in acidic medium, compared with commercial IrO2 nanoparticles. Moreover, IrTe NTs also demonstrated enhanced electrocatalytic performances in neutral and alkaline media. The outstanding electrochemical properties of IrTe NTs in a wide pH range hold great promise in energy storage and conversion devices.
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Details
- Title
- Ultrathin dendritic IrTe nanotubes for an efficient oxygen evolution reaction in a wide pH range
- Creators
- Qiurong Shi - Washington State UniversityChengzhou Zhu - Washington State UniversityDan Du - Washington State UniversityJin Wang - Shandong UniversityHaibing Xia - Shandong UniversityMark H. Engelhard - Pacific Northwest National LaboratoryShuo Feng - Washington State UniversityYuehe Lin - Washington State University
- Publication Details
- Journal of materials chemistry. A, Materials for energy and sustainability, Vol.6(19), pp.8855-8859
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Royal Soc Chemistry
- Number of pages
- 5
- Grant note
- China Scholarship Council Washington State University Department of Energy's Office of Biological and Environmental Research; United States Department of Energy (DOE)
- Identifiers
- 99901227842201842
- Language
- English
- Resource Type
- Journal article