DataVXAdvanced MaterialsPaper
journal article·2021-12

Crystal Phase Transition Creates a Highly Active and Stable RuCX Nanosurface for Hydrogen Evolution Reaction in Alkaline Media

Jeonghyeon Kim, Hee Jin Kim, Bibi Ruqia, Mi Ji Kim, Yeong‐Ji Jang, Tae Hwan Jo, Hionsuck Baik, Hyung‐Suk Oh, Hee‐Suk Chung, Kangkyun Baek, Siwoo Noh, Moonjung Jung, Ki‐jeong Kim, Hyung‐Kyu Lim, Young‐Sang Youn, Sang‐Il Choi

Advanced Materials· Volume 33· Issue 48
Publisher page
Source abstract

Abstract

Abstract Although metastable crystal structures have received much attention owing to their utilization in various fields, their phase‐transition to a thermodynamic structure has attracted comparably little interest. In the case of nanoscale crystals, such an exothermic phase‐transition releases high energy within a confined surface area and reconstructs surface atomic arrangement in a short time. Thus, this high‐energy nanosurface may create novel crystal structures when some elements are supplied. In this work, the creation of a ruthenium carbide (RuCX, X < 1) phase on the surface of the Ru nanocrystal is discovered during phase‐transition from cubic‐close‐packed to hexagonal‐close‐packed structure. When the electrocatalytic hydrogen evolution reaction (HER) is tested in alkaline media, the RuCX exhibits a much lower overpotential and good stability relative to the counterpart Ru‐based catalysts and the state‐of‐the‐art Pt/C catalyst. Density functional theory calculations predict that the local heterogeneity of the outermost RuCX surface promotes the bifunctional HER mechanism by providing catalytic sites for both H adsorption and facile water dissociation.
Source: crossref · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Fuel Cells and Related Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry and Green‐Nano Materials Research Center Kyungpook National University Daegu 41566 Republic of Korea

Division of Chemical Engineering and Bioengineering Kangwon National University Chuncheon Gangwon‐do 24341 Republic of Korea

Korea Basic Science Institute (KBSI) Seoul 02841 Republic of Korea

Clean Energy Research Center Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea

Analytical Research Division Korea Basic Science Institute (KBSI) Jeonju Jeollabuk‐do 54907 Republic of Korea

Center for Self‐assembly and Complexity (CSC) Institute for Basic Science (IBS) Pohang Gyeongsangbuk‐do 37673 Republic of Korea

Pohang Accelerator Laboratory POSTECH Pohang Gyeongsangbuk‐do 37673 Republic of Korea

Department of Physics and Photon Science Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea

Department of Chemistry Yeungnam University Gyeongsan Gyeongsangbuk‐do 38541 Republic of Korea

Funding

National Research Foundation of Korea

References (52)

Show source-provided references
1. 10.1039/C5CS00467E10.1039/C5CS00467E ↗
2. 10.1038/s41570-020-0173-410.1038/s41570-020-0173-4 ↗
3. 10.1038/nmat345810.1038/nmat3458 ↗
4. 10.1038/s41557-018-0012-010.1038/s41557-018-0012-0 ↗
5. 10.1038/s41557-018-0035-610.1038/s41557-018-0035-6 ↗
6. 10.1038/nmat97710.1038/nmat977 ↗
7. 10.1021/jacs.0c0946110.1021/jacs.0c09461 ↗
8. 10.1021/nl101700j10.1021/nl101700j ↗
9. 10.1021/ja311261s10.1021/ja311261s ↗
10. 10.1021/jacs.6b1129110.1021/jacs.6b11291 ↗
11. 10.1038/nnano.2016.30410.1038/nnano.2016.304 ↗
12. 10.1039/C9NH00485H10.1039/C9NH00485H ↗
13. 10.1038/s41578-020-0183-310.1038/s41578-020-0183-3 ↗
14. 10.1021/acscatal.8b0091010.1021/acscatal.8b00910 ↗
15. 10.1021/jacs.9b0164010.1021/jacs.9b01640 ↗
16. 10.1038/s41557-018-0201-x10.1038/s41557-018-0201-x ↗
17. 10.1126/science.aaa876510.1126/science.aaa8765 ↗
18. 10.1126/science.121193410.1126/science.1211934 ↗
19. 10.1038/s41563-018-0133-210.1038/s41563-018-0133-2 ↗
20. 10.1039/D0EE01598A10.1039/D0EE01598A ↗
21. 10.1002/celc.20200057910.1002/celc.202000579 ↗
22. 10.1002/advs.20170046410.1002/advs.201700464 ↗
23. 10.1002/cssc.20180078110.1002/cssc.201800781 ↗
24. 10.1021/acs.jpcc.8b0776310.1021/acs.jpcc.8b07763 ↗
25. 10.1038/s41467-018-08117-610.1038/s41467-018-08117-6 ↗
26. 10.1021/jacs.0c1066110.1021/jacs.0c10661 ↗
27. 10.1039/C6RA24754G10.1039/C6RA24754G ↗
28. 10.1016/j.jechem.2019.05.01110.1016/j.jechem.2019.05.011 ↗
29. 10.1039/C8TA07028H10.1039/C8TA07028H ↗
30. 10.1021/acscatal.5b0248510.1021/acscatal.5b02485 ↗
31. 10.1038/029186a010.1038/029186a0 ↗
32. 10.1126/science.124906110.1126/science.1249061 ↗
33. 10.1126/science.113594110.1126/science.1135941 ↗
34. 10.1103/PhysRevLett.109.24550510.1103/PhysRevLett.109.245505 ↗
35. 10.1039/c3cp52807c10.1039/c3cp52807c ↗
36. 10.1021/jacs.9b0708810.1021/jacs.9b07088 ↗
37. 10.1021/acsanm.8b0154110.1021/acsanm.8b01541 ↗
38. 10.1039/C6CS00915H10.1039/C6CS00915H ↗
39. 10.1016/j.coelec.2018.11.01710.1016/j.coelec.2018.11.017 ↗
40. 10.1039/tf958540105310.1039/tf9585401053 ↗
41. 10.1038/nmat175210.1038/nmat1752 ↗
42. 10.1016/j.nanoen.2016.04.01710.1016/j.nanoen.2016.04.017 ↗
43. 10.1021/acscentsci.8b0042610.1021/acscentsci.8b00426 ↗
44. 10.1021/jacs.9b0922910.1021/jacs.9b09229 ↗
45. 10.1007/s11244-013-0157-410.1007/s11244-013-0157-4 ↗
46. 10.1021/acs.inorgchem.6b0170210.1021/acs.inorgchem.6b01702 ↗
47. 10.1021/jacs.8b1322810.1021/jacs.8b13228 ↗
48. 10.2298/JSC131118136D10.2298/JSC131118136D ↗
49. 10.1002/ange.20170848410.1002/ange.201708484 ↗
50. 10.1103/PhysRevB.60.614610.1103/PhysRevB.60.6146 ↗
51. 10.1038/ncomms899210.1038/ncomms8992 ↗
52. 10.1016/j.scib.2017.11.01710.1016/j.scib.2017.11.017 ↗