Journal
ACS APPLIED NANO MATERIALS
Volume 5, Issue 12, Pages 17673-17681Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.2c03211
Keywords
metallic glasses; hydrogen evolution reaction; high mixing entropy; electronic interaction; alkaline solution; nanoporous
Funding
- National Key R&D Program of China
- National Natural Science Foundation of China
- Youth Innovation Promotion Association CAS
- Zhejiang Provincial Natural Science Foundation of China
- [2018YFA0703604]
- [2018YFA0703602]
- [NSFC 51827801]
- [51922102]
- [52071327]
- [92163108]
- [2019296]
- [LR22E010004]
- [2022C01023]
Ask authors/readers for more resources
An effective method based on hybridization strategy and de-alloying nanoporosity is reported for increasing the electrocatalytic activity of metallic glasses (MGs) in hydrogen evolution reaction (HER). The study found that the electrochemical performance reaches the maximum at 3% Au addition, displaying superior catalytic performance.
An effective method based on hybridization strategy and de-alloying nanoporosity is reported for increasing the electrocatalytic activity of metallic glasses (MGs) in hydrogen evolution reaction (HER). Based on the alloying of noble Au, the electrochemical performance reaches the maximum at 3 at. % Au addition. An overpotential as low as 124 mV at 10 mA.cm(-2) and a Tafel slope of 69 mV.dec(-1) are achieved. Such a superior catalytic performance is attributed to the large specific surface area with abundant active sites and low charge-transfer resistance. It is interesting to note that the Au3 sample has large mixing entropy, which is derived from sluggish atomic diffusion, and forms thin nanoligaments during de-alloying and thus exhibits a large specific surface area. The present work could lead to an approach to further develop environmentally friendly amorphous electrocatalysts with high efficiency and excellent stability for HER in alkaline solution.
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