Promoting industrial-level CO2 electroreduction kinetics via accelerating proton feeding on a metal-free aerogel electrocatalyst; Nano Energy; Vol. 105
| Parent link: | Nano Energy Vol. 105.— 2023.— [107980, 10 p.] |
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| Korporativní autor: | |
| Další autoři: | , , , , , , , , , |
| Shrnutí: | Title screen Developing cost-effective carbon based electrocatalysts with high activity and selectivity for CO2 reduction reaction (CO2RR) at industrial current density still remains challenges. Herein, we present a metal-free 3D cross-linked carbon aerogel catalyst containing homogeneously dispersed N and P sites (P@NCA) synthesized via freeze drying and subsequent carbonization. Benefit from the synergistic effect of N and P atoms, P@NCA aerogel delivers an excellent CO2RR activity featured by a wide potential window from ? 0.3 V to ? 0.9 V with CO Faradaic efficiency (FE) of above 90 %. Importantly, a high CO FE of 85 % at an industrial current density of 100 mA cm?2 is realized. Experimental explorations and in-situ spectroelectrochemistry analyses reveal that pyrrolic-N species acts as the real active site to execute CO2RR, while the P species facilitates the protonation process of *CO2 to *COOH intermediate by accelerating the proton feeding from water dissociation. Theoretical calculations demonstrate a suppressed *H adsorption and a facilitated *CO desorption step on pyrrolic-N site with P doping, boosting the whole CO2RR process. Further, a rechargeable Zn-CO2 battery constructed with P@NCA aerogel as cathode delivers a maximal power density of 0.8 mW cm?2 and a superior stability. Режим доступа: по договору с организацией-держателем ресурса |
| Jazyk: | angličtina |
| Vydáno: |
2023
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| Témata: | |
| On-line přístup: | https://doi.org/10.1016/j.nanoen.2022.107980 |
| Médium: | xMaterials Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668425 |
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| 200 | 1 | |a Promoting industrial-level CO2 electroreduction kinetics via accelerating proton feeding on a metal-free aerogel electrocatalyst |f Wanzhen Zheng, Dashuai Wang, Yikai Zhang [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 51 tit.] | ||
| 330 | |a Developing cost-effective carbon based electrocatalysts with high activity and selectivity for CO2 reduction reaction (CO2RR) at industrial current density still remains challenges. Herein, we present a metal-free 3D cross-linked carbon aerogel catalyst containing homogeneously dispersed N and P sites (P@NCA) synthesized via freeze drying and subsequent carbonization. Benefit from the synergistic effect of N and P atoms, P@NCA aerogel delivers an excellent CO2RR activity featured by a wide potential window from ? 0.3 V to ? 0.9 V with CO Faradaic efficiency (FE) of above 90 %. Importantly, a high CO FE of 85 % at an industrial current density of 100 mA cm?2 is realized. Experimental explorations and in-situ spectroelectrochemistry analyses reveal that pyrrolic-N species acts as the real active site to execute CO2RR, while the P species facilitates the protonation process of *CO2 to *COOH intermediate by accelerating the proton feeding from water dissociation. Theoretical calculations demonstrate a suppressed *H adsorption and a facilitated *CO desorption step on pyrrolic-N site with P doping, boosting the whole CO2RR process. Further, a rechargeable Zn-CO2 battery constructed with P@NCA aerogel as cathode delivers a maximal power density of 0.8 mW cm?2 and a superior stability. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Nano Energy | ||
| 463 | |t Vol. 105 |v [107980, 10 p.] |d 2023 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a metal-free carbon aerogels | |
| 610 | 1 | |a N/P doping | |
| 610 | 1 | |a accelerating proton feeding | |
| 610 | 1 | |a CO2 electroreduction | |
| 610 | 1 | |a Zn-CO2 battery | |
| 610 | 1 | |a углеродные вещества | |
| 610 | 1 | |a аэрогели | |
| 610 | 1 | |a электровосстановление | |
| 701 | 0 | |a Wanzhen Zheng | |
| 701 | 0 | |a Dashuai Wang | |
| 701 | 0 | |a Yikai Zhang | |
| 701 | 0 | |a Sixing Zheng | |
| 701 | 0 | |a Zhongjian Li | |
| 701 | 1 | |a Rodriguez (Rodriges) Contreras |b R. D. |c Venezuelan physicist, doctor of science |c Professor of Tomsk Polytechnic University |f 1982- |g Raul David |3 (RuTPU)RU\TPU\pers\39942 |9 21179 | |
| 701 | 0 | |a Tao Zhang | |
| 701 | 0 | |a Lecheng Lei | |
| 701 | 0 | |a Siyu Yao | |
| 701 | 0 | |a Yang Hou | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа химических и биомедицинских технологий |c (2017- ) |3 (RuTPU)RU\TPU\col\23537 |
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