|
|
|
|
| LEADER |
01000caa a22002652 4500 |
| 001 |
NLM372172156 |
| 003 |
DE-627 |
| 005 |
20240521234741.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
240511s2024 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1021/acs.langmuir.4c00277
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n1414.xml
|
| 035 |
|
|
|a (DE-627)NLM372172156
|
| 035 |
|
|
|a (NLM)38728666
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Xiao, Zhourong
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Highly Dispersed Mn-Doped Ceria Supported on N-Doped Carbon Nanotubes for Enhanced Oxygen Reduction Reaction
|
| 264 |
|
1 |
|c 2024
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Revised 21.05.2024
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a The weak adsorption of oxygen on transition metal oxide catalysts limits the improvement of their electrocatalytic oxygen reduction reaction (ORR) performance. Herein, a dopamine-assisted method is developed to prepare Mn-doped ceria supported on nitrogen-doped carbon nanotubes (Mn-Ce-NCNTs). The morphology, dispersion of Mn-doped ceria, composition, and oxygen vacancies of the as-prepared catalysts were analyzed using various technologies. The results show that Mn-doped ceria was formed and highly dispersed on NCNTs, on which oxygen vacancies are abundant. The as-prepared Mn-Ce-NCNTs exhibit a high ORR performance, on which the average electron transfer number is 3.86 and the current density is 24.4% higher than that of commercial 20 wt % Pt/C. The peak power density of Mn-Ce-NCNTs is 68.1 mW cm-2 at the current density of 138.9 mA cm-2 for a Zn-air battery, which is close to that of 20 wt % Pt/C (69.4 mW cm-2 at 106.1 mA cm-2). Density functional theory (DFT) calculations show that the oxygen vacancy formation energies of Mn-doped CeO2(111) and pure CeO2(111) are -0.55 and 2.14 eV, respectively. Meanwhile, compared with undoped CeO2(111) (-0.02 eV), Mn-doped CeO2(111) easily adsorbs oxygen with the oxygen adsorption energy of only -0.68 eV. This work provides insights into the synergetic effect of Mn-doped ceria for facilitating oxygen adsorption and enhancing ORR performance
|
| 650 |
|
4 |
|a Journal Article
|
| 700 |
1 |
|
|a Hou, Fang
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zhang, Xiangwen
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Pan, Lun
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zou, Ji-Jun
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Li, Guozhu
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 40(2024), 20 vom: 21. Mai, Seite 10561-10570
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
|
| 773 |
1 |
8 |
|g volume:40
|g year:2024
|g number:20
|g day:21
|g month:05
|g pages:10561-10570
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1021/acs.langmuir.4c00277
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_22
|
| 912 |
|
|
|a GBV_ILN_350
|
| 912 |
|
|
|a GBV_ILN_721
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 40
|j 2024
|e 20
|b 21
|c 05
|h 10561-10570
|