可充电锌-空气电池锰系催化剂的形态与性能关系

IF 4.8 2区化学 Q2 CHEMISTRY, PHYSICAL

The Journal of Physical Chemistry Letters Pub Date : 2025-06-20 DOI:10.1021/acs.jpclett.5c01560

Sheraz Ahmed, Jiwon An, Muhammad Zubair, Ho-Jung Sun, Joongpyo Shim, Gyungse Park

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引用次数: 0

摘要

以含锌咪唑酸分子筛骨架（ZIF-8）制备的多孔碳为前驱体，在其上沉积Mn，提高了ORR和OER的催化性能和稳定性。将Zn- zif -8在1000℃下进行热分解，除去Zn- zif -8中的大部分Zn原子，生成多孔碳（PC），形成Mn/C- zif。Mn/C-ZIF的表面积更高，为60 m2/g。Mn/C-ZIF催化剂在氧还原反应（ORR）和析氧反应（OER）中表现出显著的性能。Mn/C-ZIF具有高稳定性和低过电位的可充电锌空气电池。锰沉积多孔碳作为正极材料在可充电锌空气电池中具有潜在的应用前景，并可产生ORR/OER催化活性位点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Relationship between Morphology and Performance of Manganese-Derived Catalysts for Rechargeable Zinc-Air Batteries

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Relationship between Morphology and Performance of Manganese-Derived Catalysts for Rechargeable Zinc-Air Batteries

Porous carbon derived from a zeolitic imidazolate framework containing zinc (ZIF-8) was used as a precursor, and Mn was deposited on it, which improves the catalytic performance and stability for both ORR and OER. Mn-deposited porous carbon was obtained by the thermal decomposition of Zn-ZIF-8 at 1000 °C, which removes most of the Zn atoms from Zn-ZIF-8 and yields porous carbon (PC) to form Mn/C-ZIF. The Mn/C-ZIF has a higher surface area of 60 m²/g. The Mn/C-ZIF catalyst shows significant performance for ORR (oxygen reduction reactions) and OER (oxygen evolution reactions). The Mn/C-ZIF has high stability and low overpotential for rechargeable zinc-air batteries. The Mn-deposited porous carbon has potential application toward rechargeable zinc-air batteries as a cathode material and generates catalytically active sites for ORR/OER.

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来源期刊

The Journal of Physical Chemistry Letters CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

9.60

自引率

7.00%

发文量

1519

审稿时长

1.6 months

期刊介绍： The Journal of Physical Chemistry (JPC) Letters is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, chemical physicists, physicists, material scientists, and engineers. An important criterion for acceptance is that the paper reports a significant scientific advance and/or physical insight such that rapid publication is essential. Two issues of JPC Letters are published each month.