Journal
CHEMOSPHERE
Volume 245, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2019.125607
Keywords
Graphene oxide; Graphene foam; Hydrogen evolution reaction; Hydrophobic/hydrophilic interface; Heterostructure
Categories
Funding
- National High Technology Research and Development Plan of China [2015AA043505]
- Natural Science Foundation of Guangdong Province [2018A030313182]
- Shenzhen Technology Research Funds [JSGG20170414094227487]
- Shenzhen Fundamental Research Funds [JCYJ20180508151910775]
- National Natural Science Foundation [11850410427]
- RMIT University
Ask authors/readers for more resources
The synergetic effect of hydrophilic and hydrophobic carbon can be used to obtain tunable hydrogen evolution reaction (HER) at the interface. Herein, graphene oxide (GO-Hummers method) was coated on graphene foam (GF) synthesized via chemical vapor deposition to develop mixed-dimensional heterostructure for the observation of HER. The porosity of GF not only provides an optimized diffusion co-efficient for better mass transport but also modified surface chemistry (GF/GO-hydrophobic/hydrophilic interface), which results in an onset potential 50 mV and overpotential of 450 mV to achieve the current density 10 mA/cm(2). The surface analysis shows that inherent functional groups at the surface played a key role in tuning the activity of hybrid, providing a pathway to introduce non-corrosive electrodes for water splitting. (C) 2019 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available