DataVXACS NanoPaper
journal article·2019-01-22Open access

In Situ Charge Exfoliated Soluble Covalent Organic Framework Directly Used for Zn–Air Flow Battery

Peng Peng, Lei Shi, Feng Huo, Suojiang Zhang, Chunxia Mi, Yuanhui Cheng, Zhonghua Xiang

ACS Nano· Volume 13· Issue 1
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Source abstract

Abstract

Covalent organic frameworks (COFs) are generally obtained as insoluble, cross-linked powders or films, hindering their superior processable properties especially for device implementation. Here, a soluble COF is created with atomically well-organized positive charged centers constrained in the planar direction, exhibiting exceptional solubility through an in situ charge exfoliation pathway. Once dissolved, the obtained true solution retains homogeneity even after standing over a year. Moreover, the as-designed soluble COF contains ordered N-coordinated Fe single atom centers and conjugated structures, providing a small work function (4.84 eV) and superior catalytic performance for oxygen reduction (high half-wave potential of ∼900 mV). The obtained COF true solution can be directly used as a highly efficient Pt-replaced catalyst for zinc-air flow batteries, generating prominent performance and outstanding stability.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageCatalysis & surfaces

OpenAlex topics: Covalent Organic Framework Applications · Advanced battery technologies research · Advanced Photocatalysis Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, College of Energy, Beijing University of Chemical Technology, Beijing 100029, China

Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Funding

State Administration of Foreign Experts Affairs · Ministry of Science and Technology of the People's Republic of China · China Association for Science and Technology · Ministry of Education of the People's Republic of China · Natural Science Foundation of Beijing Municipality · Beijing University of Chemical Technology · National Natural Science Foundation of China · State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology

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