Enhanced oxygen reduction activity and stability of double-layer nitrogen-doped carbon catalyst with abundant Fe-Co dual-atom sites (Record no. 54620)
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| fixed length control field | 02779nam a2200277Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625162450.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-20531 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Enhanced oxygen reduction activity and stability of double-layer nitrogen-doped carbon catalyst with abundant Fe-Co dual-atom sites |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Nano Energy, 117, p.108854, 2023 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | The synergistic effect between metal atoms gives dual-atom catalysts superior catalytic performance to single-atom catalysts. Herein, we report a ZIF-derived double-layer Fe-Co dual-atom catalyst (D-FeCo-DAs-N-C)for oxygen reduction reaction (ORR). The formation of N3-Fe-Co-N3 Fe-Co dual-atom structure was confirmed by X-ray absorption spectroscopy. A ZIF-derived Zn/Co bimetallic double-layer structure was used as a host, and the guest Fe3+ ions were encapsulated to the cavities by dual solvent method to form the ZIF-derived Zn/Co/Fe trimetallic double-layer structure. During the pyrolysis process, part of the Fe3+ ions were reduced by the generated carbon and combined with adjacent Co atoms to form Fe-Co dual-atom catalyst. The special double-layer structure provided abundant active sites and stable coordination environment for Fe-Co dual-atom sites. The density functional theory calculation shows that Fe-Co dual-atom sites promote the accumulation of electrons, and regulate the adsorption free energy of reaction intermediates, leading to higher limit potential. The D-FeCo-DAs-N-C exhibits excellent ORR performance (E1/2 =0.927 V)and extraordinary stability in alkaline media. The ORR chronoamperometry test showed that the current maintained 94.18 percent of the initial value after 100 h. The catalytic activity and stability of D-FeCo-DAs-N-C are higher than those of single-atom and single-layer catalysts synthesized as control samples. In addition, the practical zinc-air battery using D-FeCo-DAs-N-C as cathodic catalyst showed a maximum power density of 259 mW cm?2, a specific capacity of 814 W h kg?1 at 10 mA cm?2, and a stability of 400 cycles without detectable attenuation for 200 h. Furthermore, this catalyst also exhibits excellent performance in flexible zinc-air battery with a maximum power density of 140.3 mW cm?2 and excellent mechanical flexibility. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | DOUBLE-LAYER |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | DUAL-ATOM |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | OXYGEN REDUCTION REACTION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | ZINC-AIR BATTERY |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zhang, L. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Dong, Y. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Li, L. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Wei, L. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Su, J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Guo, L. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1JiEoDHL7ODwrTdTbiv72wG6xqqvvqvtr/view?usp=drivesdk">https://drive.google.com/file/d/1JiEoDHL7ODwrTdTbiv72wG6xqqvvqvtr/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
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| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-20531 | 25.06.2025 | 25.06.2025 | Documentos solicitados |