Coral-Shaped MoS2 Decorated with Graphene Quantum Dots Performing as a Highly Active Electrocatalyst for Hydrogen Evolution Reaction
Source abstract
Abstract
We report a new CVD method to prepare coral-shaped monolayer MoS 2 with a large amount of exposed edge sites for catalyzing hydrogen evolution reaction. The electrocatalytic activities of the coral-shaped MoS 2 can be further enhanced by electronic band engineering via decorated with graphene quantum dot (GQD) decoration. Generally, GQDs improve the electrical conductivity of the MoS 2 electrocatalyst. First-principles calculations suggest that the coral MoS 2 @GQD is a zero-gap material. The high electric conductivity and pronounced catalytically active sites give the hybrid catalyst outstanding electrocatalytic performance with a small onset overpotential of 95 mV and a low Tafel slope of 40 mV/dec as well as excellent long-term electrocatalytic stability. The present work provides a potential way to design two-dimensional hydrogen evolution reaction (HER) electrocatalysts through controlling the shape and modulating the electric conductivity.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced Photocatalysis Techniques · 2D Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University, Shanghai 200241, China
State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
CREST, Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
Funding
Core Research for Evolutional Science and Technology · National Natural Science Foundation of China · ECNU Outstanding Doctoral Dissertation Cultivation Plan of Action · Key Laboratory of Polar Materials and Devices, East China Normal University
References (58)
Show source-provided references
1. 10.1126/science.110319710.1126/science.1103197 ↗
2. 10.1126/science.112718010.1126/science.1127180 ↗
3. 10.1038/nchem.163410.1038/nchem.1634 ↗
4. 10.1038/nature1147510.1038/nature11475 ↗
5. 10.1021/cr100232610.1021/cr1002326 ↗
6. 10.1002/anie.20130691810.1002/anie.201306918 ↗
7. 10.1021/ja050469010.1021/ja0504690 ↗
8. 10.1038/nmat175210.1038/nmat1752 ↗
9. 10.1038/nchem.36710.1038/nchem.367 ↗
10. 10.1002/anie.20120069910.1002/anie.201200699 ↗
11. 10.1021/nl400258t10.1021/nl400258t ↗
12. 10.1039/c1ee01970h10.1039/c1ee01970h ↗
13. 10.1038/nnano.2012.19310.1038/nnano.2012.193 ↗
14. 10.1002/ange.20121029410.1002/ange.201210294 ↗
15. 10.1039/c2cs35387c10.1039/c2cs35387c ↗
16. 10.1038/nnano.2014.6410.1038/nnano.2014.64 ↗
17. 10.1016/j.ijhydene.2015.05.06210.1016/j.ijhydene.2015.05.062 ↗
18. 10.1039/C4NR07303G10.1039/C4NR07303G ↗
19. 10.1038/nchem.158910.1038/nchem.1589 ↗
20. 10.1021/nl403661s10.1021/nl403661s ↗
21. 10.1021/ja408329q10.1021/ja408329q ↗
22. 10.1039/c3cs60138b10.1039/c3cs60138b ↗
23. 10.1021/nn503211t10.1021/nn503211t ↗
24. 10.1002/anie.20150569110.1002/anie.201505691 ↗
25. 10.1021/nl403620g10.1021/nl403620g ↗
26. 10.1039/C5CC00803D10.1039/C5CC00803D ↗
27. 10.1002/adma.20110479810.1002/adma.201104798 ↗
28. 10.1021/acs.nanolett.5b0433110.1021/acs.nanolett.5b04331 ↗
29. 10.1021/cm500347r10.1021/cm500347r ↗
30. 10.1016/j.nanoen.2015.10.01410.1016/j.nanoen.2015.10.014 ↗
31. 10.1021/am403663f10.1021/am403663f ↗
32. 10.1038/ncomms394310.1038/ncomms3943 ↗
33. 10.1021/nl203897910.1021/nl2038979 ↗
34. 10.1002/cphc.20130068010.1002/cphc.201300680 ↗
35. 10.1103/PhysRevB.57.150510.1103/PhysRevB.57.1505 ↗
36. 10.1021/nn100393710.1021/nn1003937 ↗
37. 10.1103/PhysRevLett.47.140010.1103/PhysRevLett.47.1400 ↗
38. 10.1103/PhysRevLett.51.111910.1103/PhysRevLett.51.1119 ↗
39. 10.1103/PhysRevE.75.01140610.1103/PhysRevE.75.011406 ↗
40. 10.1039/b909740f10.1039/b909740f ↗
41. 10.1063/1.356064310.1063/1.3560643 ↗
42. 10.1021/nl401938t10.1021/nl401938t ↗
43. 10.1038/nnano.2015.4010.1038/nnano.2015.40 ↗
44. 10.1038/nature0554510.1038/nature05545 ↗
45. 10.1038/srep0186610.1038/srep01866 ↗
46. 10.1021/ja020913o10.1021/ja020913o ↗
47. 10.1039/C4NR03703K10.1039/C4NR03703K ↗
48. 10.1103/PhysRevLett.105.13680510.1103/PhysRevLett.105.136805 ↗
49. 10.1038/nmat350510.1038/nmat3505 ↗
50. 10.1002/adma.20150188810.1002/adma.201501888 ↗
51. 10.1016/j.jpowsour.2014.11.03010.1016/j.jpowsour.2014.11.030 ↗
52. 10.1039/C5NR05595D10.1039/C5NR05595D ↗
53. 10.1002/anie.20150752910.1002/anie.201507529 ↗
54. 10.1038/ncomms569510.1038/ncomms5695 ↗
55. 10.1038/ncomms849310.1038/ncomms8493 ↗
56. 10.1021/ja404523s10.1021/ja404523s ↗
57. 10.1038/nature1379210.1038/nature13792 ↗
58. 10.1039/C3CS60468C10.1039/C3CS60468C ↗