It appears you don't have support to open PDFs in this web browser. To view this file, Open with your PDF reader
Abstract
Growing environmental problems along with the galloping rate of population growth have raised an unprecedented challenge to look for an ever-lasting alternative source of energy for fossil fuels. The eternal quest for sustainable energy production strategies has culminated in the electrocatalytic water splitting process integrated with renewable energy resources. The successful accomplishment of this process is thoroughly subject to competent, earth-abundant, and low-cost electrocatalysts to drive the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), preferably, in the same electrolyte. The present contribution has been dedicated to studying the synthesis, characterization, and electrochemical properties of newfangled electrocatalysts with the formal composition of Mg1−xTMxB2 (x = 0.025, 0.05, and 0.1; TM (transition metal) = Fe and Co) primarily in HER as well as OER under 1 M KOH medium. The electrochemical tests revealed that among all the metal-doped MgB2 catalysts, Mg0.95Co0.05B2 has the best HER performance showing an overpotential of 470 mV at − 10 mA cm−2 and a Tafel slope of 80 mV dec−1 on account of its high purity and fast electron transport. Further investigation shed some light on the fact that Fe concentration and overpotential for HER have adverse relation meaning that the highest amount of Fe doping (x = 0.1) displayed the lowest overpotential. This contribution introduces not only highly competent electrocatalysts composed of low-cost precursors for the water-splitting process but also a facile scalable method for the assembly of highly porous electrodes paving the way for further stunning developments in the field.
You have requested "on-the-fly" machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Show full disclaimer
Neither ProQuest nor its licensors make any representations or warranties with respect to the translations. The translations are automatically generated "AS IS" and "AS AVAILABLE" and are not retained in our systems. PROQUEST AND ITS LICENSORS SPECIFICALLY DISCLAIM ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES FOR AVAILABILITY, ACCURACY, TIMELINESS, COMPLETENESS, NON-INFRINGMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Your use of the translations is subject to all use restrictions contained in your Electronic Products License Agreement and by using the translation functionality you agree to forgo any and all claims against ProQuest or its licensors for your use of the translation functionality and any output derived there from. Hide full disclaimer
Details
1 Koç University Boron and Advanced Materials Application and Research Center (KUBAM), Sariyer, Turkey (GRID:grid.15876.3d) (ISNI:0000000106887552); Koç University, Graduate School of Sciences and Engineering, Sariyer, Turkey (GRID:grid.15876.3d) (ISNI:0000000106887552)
2 Koç University Boron and Advanced Materials Application and Research Center (KUBAM), Sariyer, Turkey (GRID:grid.15876.3d) (ISNI:0000000106887552)
3 University of Tabriz, Inorganic Chemistry Department, Faculty of Chemistry, Tabriz, Iran (GRID:grid.412831.d) (ISNI:0000 0001 1172 3536)
4 Koç University Surface Science and Technology Center (KUYTAM), Sariyer, Turkey (GRID:grid.15876.3d) (ISNI:0000000106887552); Koç University, Department of Chemistry, Sariyer, Turkey (GRID:grid.15876.3d) (ISNI:0000000106887552)
5 Koç University Boron and Advanced Materials Application and Research Center (KUBAM), Sariyer, Turkey (GRID:grid.15876.3d) (ISNI:0000000106887552); Koç University, Department of Chemistry, Sariyer, Turkey (GRID:grid.15876.3d) (ISNI:0000000106887552)