The morphologic dependence of MnO2 electrodes in capacitive deionization process

Chen, Yi; Pu, Shengyan; Zhang, Zhe; Gao, Ming; Deng, Wenyang; Ao, Tianqi; Chen, Wenqing

doi:10.1016/j.cej.2024.155276

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.155276

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The morphologic dependence of MnO2 electrodes in capacitive deionization process

Yi Chen,

Shengyan Pu,

Zhe Zhang

et al.

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Cited by 3 publications

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Highly Dispersed Ag Nanocrystals Anchored on N‐Doped Holey Carbon Aerogel as High‐Mass‐Loading Electrode for Cl⁻ Capture in Hybrid Capacitive Deionization

Kong,

Lu,

Wang

et al. 2024

Small

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Nanostructured Faradaic materials show extraordinary promise for capacitive deionization (CDI) toward the relief of global freshwater scarcity. But at present, there exist at least two shortages for the development of CDI electrode materials. In laboratory studies, evaluating their desalination performance is usually based on low mass loadings (<1 mg cm−2), which is far behind the practical demand for fabricating high‐mass‐loading CDI electrodes or devices. On the other hand, high efficient, high active anode materials are rather scarce. Herein, highly dispersed Ag nanocrystals are synthesized on N‐doped holey carbon (Ag@NHC) for use as a high‐performance Cl−‐capture electrode at practical levels of mass loading. The Ag@NHC material is characteristic of ultrafine Ag nanocrystals with size of ≈7 nm anchored on carbon through Ag─N bonds, abundant 1–20 nm in‐plane pores in carbon sheets, and an ultrahigh specific surface area (1827.9 m2 g−1). This ensures Ag@NHC electrode (at 6.4 mg cm−2 mass loading) with excellent structural and property stabilities, >80% atom‐economic utilization of Ag, as well as superior Cl−‐capture performances. This work provides a general guideline on how to estimate the optimal mass loadings for constructing highly active CDI electrodes in the future.

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Highly Dispersed Ag Nanocrystals Anchored on N‐Doped Holey Carbon Aerogel as High‐Mass‐Loading Electrode for Cl⁻ Capture in Hybrid Capacitive Deionization

Kong,

Lu,

Wang

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

Metal-organic framework/layered double hydroxide (MOF/LDH) hetero-nanosheet array for capacitive deionization

Jiang,

Zhang,

Mantzavinos

et al. 2024

Chemical Engineering Journal

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Elucidating the efficacious capacitive deionization defluorination behaviors of heteroatom-doped hierarchical porous carbon nanofibers membrane

Gao,

Chen,

Xiao

et al. 2025

Separation and Purification Technology

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The morphologic dependence of MnO2 electrodes in capacitive deionization process

Cited by 3 publications

References 50 publications

Highly Dispersed Ag Nanocrystals Anchored on N‐Doped Holey Carbon Aerogel as High‐Mass‐Loading Electrode for Cl⁻ Capture in Hybrid Capacitive Deionization

Highly Dispersed Ag Nanocrystals Anchored on N‐Doped Holey Carbon Aerogel as High‐Mass‐Loading Electrode for Cl⁻ Capture in Hybrid Capacitive Deionization

Metal-organic framework/layered double hydroxide (MOF/LDH) hetero-nanosheet array for capacitive deionization

Elucidating the efficacious capacitive deionization defluorination behaviors of heteroatom-doped hierarchical porous carbon nanofibers membrane

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The morphologic dependence of MnO2 electrodes in capacitive deionization process

Cited by 3 publications

References 50 publications

Highly Dispersed Ag Nanocrystals Anchored on N‐Doped Holey Carbon Aerogel as High‐Mass‐Loading Electrode for Cl− Capture in Hybrid Capacitive Deionization

Highly Dispersed Ag Nanocrystals Anchored on N‐Doped Holey Carbon Aerogel as High‐Mass‐Loading Electrode for Cl− Capture in Hybrid Capacitive Deionization

Metal-organic framework/layered double hydroxide (MOF/LDH) hetero-nanosheet array for capacitive deionization

Elucidating the efficacious capacitive deionization defluorination behaviors of heteroatom-doped hierarchical porous carbon nanofibers membrane

Contact Info

Product

Resources

About

Highly Dispersed Ag Nanocrystals Anchored on N‐Doped Holey Carbon Aerogel as High‐Mass‐Loading Electrode for Cl⁻ Capture in Hybrid Capacitive Deionization

Highly Dispersed Ag Nanocrystals Anchored on N‐Doped Holey Carbon Aerogel as High‐Mass‐Loading Electrode for Cl⁻ Capture in Hybrid Capacitive Deionization