Heteroatom-doped carbon sheets as metal-free electrocatalysts for promoting the oxygen reduction reaction in Zn–air batteries,Dalton Transactions

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Heteroatom-doped carbon sheets as metal-free electrocatalysts for promoting the oxygen reduction reaction in Zn–air batteries
Dalton Transactions ( IF 3.5 ) Pub Date : 2022-11-12 , DOI: 10.1039/d2dt03076d
Yuanqing Deng ₁ , Hongyu Zhang ₁ , Yuxuan Lin ₁ , Qi Ying ₁ , Fengjiao Yu ₁ , Yang Yang ₁

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Zn–air batteries are promising energy devices for future sustainable development. It is crucial to promote the cathodic reaction, oxygen reduction reaction (ORR), by applying active electrocatalysts. Herein, a metal-free ORR electrocatalyst has been fabricated by doping S and N atoms into carbon sheets (S–N–C), and it displays high ORR activity and outstanding performance in Zn–air batteries. The S–N–C electrocatalyst exhibits remarkable ORR activity with a half-wave potential of 0.89 V, which is far exceeding that of the commercial Pt/C benchmark and most reported carbon-based electrocatalysts. A full-cell Zn–air battery device with S–N–C as a cathode catalyst is demonstrated, which delivers high power density and good durability.

中文翻译：

杂原子掺杂碳片作为无金属电催化剂促进锌空气电池中的氧还原反应

锌空气电池是未来可持续发展的有前途的能源设备。通过应用活性电催化剂来促进阴极反应、氧还原反应 (ORR) 至关重要。在此，通过将 S 和 N 原子掺杂到碳片 (S-N-C) 中制备了一种无金属 ORR 电催化剂，它在锌空气电池中表现出高 ORR 活性和出色的性能。S-N-C 电催化剂表现出显着的 ORR 活性，半波电位为 0.89 V，远远超过商业 Pt/C 基准和大多数报道的碳基电催化剂。展示了一种以 S-N-C 作为阴极催化剂的全电池锌空气电池装置，它具有高功率密度和良好的耐久性。

更新日期：2022-11-17

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