Date/Time: 04-04-2018 - Wednesday - 05:00 PM - 07:00 PM
Hyounmyung Park1

1, University of California, Riverside, Riverside, California, United States

Recently, as the concerns on the global warming and the depletion of fossil fuels, the most immediate scientific challenge is developing clean and renewable energy. Hydrogen has emerged as one of the promising alternatives to carbon-based fuels because hydrogen is eco-friendly energy.
There are lots of methods to produce hydrogen. One easy way to produce extremely pure hydrogen is water electrolysis, through hydrogen evolution reaction (HER).
Currently, noble metals such as platinum are generally regarded as the state-of-the-art electrocatalysts for improving the kinetics and efficiency of HER. However, their prohibitive price and scarcity limit their application industrially. It is therefore highly desirable to discover highly active and stable HER electrocatalysts composed of inexpensive and earth abundant elements.
In the last few years, boron based materials have been proposed as low-cost alternative electrocatalysts for HER. Recently, binary molybdenum borides (MoB, Mo2B, MoB2 and Mo2B4), iron boride (FeB2) and amorphous cobalt boride (Co2B) were reported to have excellent catalytic properties for the HER.
In this work, we have synthesized binary tungsten borides. The synthesized materials were characterized by X-ray power diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray analysis (EDX) and scanning electron microscope (SEM). Linear sweep voltammetry (LSV) was performed to determine the electrochemical properties by using a three electrodes system, and cyclic voltammetry (CV) was conducted in order to measure stability.

Meeting Program

5:00 PM–7:00 PM Apr 4, 2018 (America - Denver)

PCC North, 300 Level, Exhibit Hall C-E