| Autor: |
Liu, Detao, Qian, Zhiyun, Li, Yinghui, Luo, Yao, Liu, Chaocheng, Cui, Jiedong |
| Předmět: |
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| Zdroj: |
Advanced Sustainable Systems; Jul2024, Vol. 8 Issue 7, p1-8, 8p |
| Abstrakt: |
Developing low‐cost, durable, and highly‐active bifunctional electrocatalysts from sustainable biomass for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) remains a formidable challenge. Here, a novel approach is demonstrated for fabricating a porous biochar‐derived nanocellulose‐cornstalks aerogel by engineering of synergetic N, B, and F incorporation. Nanocellulose is used to disperse the carbonous cornstalks as the sufficiently nanostructured porous template, enabling the facile incorporation of N, B, and F to strengthen electron transfer efficiency and synergistically guarantee bifunctional ORR activity of a half‐wave potential of 0.845 V which outperforms the commercial Pt/C catalysts; moreover, it also shows an overpotential of 368 mV at 10 mA cm−2 by a maximum several or dozens of times compared to the exiting biomass‐derived electrocatalysts. The N, B, and F‐engineered agro‐forestry biomass with tailoring nanostructure that shows similarly high‐performance ORR/OER activity, directing the next generation of biomass‐derived electrocatalysts with ecological sustainability and cost‐effectivity. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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