- Home
- Search Results
- Page 1 of 1
Search for: All records
-
Total Resources3
- Resource Type
-
00030
- Availability
-
30
- Author / Contributor
- Filter by Author / Creator
-
-
Goddard, William A. (3)
-
Kwon, Soonho (3)
-
Choi, Chungseok (2)
-
Cai, Jin (1)
-
Cha, Judy J. (1)
-
Chen, Xiaobo (1)
-
Cheng, Tao (1)
-
Duan, Xiangfeng (1)
-
Elimelech, Menachem (1)
-
Fang, Jiye (1)
-
Harmon, Nia J. (1)
-
Hart, James L. (1)
-
Huang, Yu (1)
-
Jiang, Shaojie (1)
-
Lee, Changsoo (1)
-
Lee, Hyuck Mo (1)
-
Li, Can (1)
-
Pan, Jinfong (1)
-
Pan, Xiaoqing (1)
-
Rooney, Conor L. (1)
-
- Filter by Editor
-
-
null (1)
-
& Spizer, S. M. (0)
-
& . Spizer, S. (0)
-
& Ahn, J. (0)
-
& Bateiha, S. (0)
-
& Bosch, N. (0)
-
& Brennan K. (0)
-
& Brennan, K. (0)
-
& Chen, B. (0)
-
& Chen, Bodong (0)
-
& Drown, S. (0)
-
& Ferretti, F. (0)
-
& Higgins, A. (0)
-
& J. Peters (0)
-
& Kali, Y. (0)
-
& Ruiz-Arias, P.M. (0)
-
& S. Spitzer (0)
-
& Spitzer, S. (0)
-
& Spitzer, S.M. (0)
-
(submitted - in Review for IEEE ICASSP-2024) (0)
-
-
Have feedback or suggestions for a way to improve these results?
!
Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher.
Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?
Some links on this page may take you to non-federal websites. Their policies may differ from this site.
-
This study demonstrates an atomic composition manipulation on Pt–Ni nano-octahedra to enhance their electrocatalytic performance. By selectively extracting Ni atoms from the {111} facets of the Pt–Ni nano-octahedra using gaseous carbon monoxide at an elevated temperature, a Pt-rich shell is formed, resulting in an ∼2 atomic layer Pt-skin. The surface-engineered octahedral nanocatalyst exhibits a significant enhancement in both mass activity (∼1.8-fold) and specific activity (∼2.2-fold) toward the oxygen reduction reaction compared with its unmodified counterpart. After 20,000 potential cycles of durability tests, the surface-etched Pt–Ni nano-octahedral sample shows a mass activity of 1.50 A/mgPt, exceeding the initial mass activity of the unetched counterpart (1.40 A/mgPt) and outperforming the benchmark Pt/C (0.18 A/mgPt) by a factor of 8. DFT calculations predict this improvement with the Pt surface layers and support these experimental observations. This surface-engineering protocol provides a promising strategy for developing novel electrocatalysts with improved catalytic features.more » « less
-
Choi, Chungseok ; Wang, Xiaoxiong ; Kwon, Soonho ; Hart, James L. ; Rooney, Conor L. ; Harmon, Nia J. ; Sam, Quynh P. ; Cha, Judy J. ; Goddard, William A. ; Elimelech, Menachem ; et al ( , Nature Nanotechnology)
-
Choi, Chungseok ; Kwon, Soonho ; Cheng, Tao ; Xu, Mingjie ; Tieu, Peter ; Lee, Changsoo ; Cai, Jin ; Lee, Hyuck Mo ; Pan, Xiaoqing ; Duan, Xiangfeng ; et al ( , Nature Catalysis)null (Ed.)