Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 8, Issue 37, Pages 19278-19282Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ta07757g
Keywords
-
Funding
- National Natural Science Foundation of China [21874079]
- Nature Science Foundation for Outstanding Young Scientists of Shandong Province [ZR2018JL011]
- Key R & D Project of Shandong Province [GG201809230180]
- Taishan Scholars Program of Shandong Province [tsqn201909088]
- Outstanding Youth Innovation Team of Universities in Shandong Province [2019KJA027]
- Science & Technology Fund Planning Project of Shandong Colleges and Universities [J16LA13, J18KA112]
Ask authors/readers for more resources
Electrochemical conversion of N(2)provides an eco-friendly approach for sustainable ammonia (NH3) production, but most electrocatalysts still suffer from low selectivity. Herein, a new three dimensional (3D) graphene aerogel-supported MoO(2)and FeS(2)nanocomposite (MoO2/FeS2/GA) was developed through mimicking the elemental composition and proportion of MoFe nitrogenase. Herein, MoO(2)and FeS(2)can both act as active sites for nitrogen fixation, while FeS(2)plays the role of suppressing the competitive hydrogen evolution activity simultaneously. Moreover, the graphene aerogels can promote the charge transfer and increase the specific surface area of the nanocomposites. Based on the synergistic effects of such a ternary architecture, the electrocatalyst exhibits a high NH(3)yield of 40.18 mu g h(-1)mg(cat.)(-1)and outstanding faradaic efficiency of 37.44% at -0.25 Vversusthe reversible hydrogen electrode (RHE) in 0.1 M HCl. The selectivity of the as-proposed nanocomposite is superior to those of GA, FeS2/GA, MoO2/GA and most previously reported NRR electrocatalysts. Such a bioinspired strategy provides a new avenue to develop more high-efficiency catalysts with controllable activity for the NRR under ambient conditions.
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