A high-performance hydroxide exchange membrane enabled by Cu2+-crosslinked chitosan

Wu, Mei‐Ling; Zhang, Xin; Zhao, Yun; Yang, Chunpeng; Jing, Shuangshuang; Wu, Qisheng; Brozena, Alexandra H.; Miller, Jeffrey T.; Libretto, Nicole J.; Wu, Tianpin; Bhattacharyya, Sahana; Garaga, Mounesha N.; Zhang, Yugang; Qi, Yue; Greenbaum, Steven; Briber, Robert M.; Yan, Yushan; Hu, Liangbing

doi:10.1038/s41565-022-01112-5

Cited by 99 publications

(49 citation statements)

References 55 publications

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“…S5). The confinement of the abundant defects, porous structures, and oxygen functional groups in ACC-600 can substantially enhance the interaction between the metal ions and the support [32,33]. After the adsorption process, nanoparticles are observed on the surface of the ACC-600@Cu 2+ electrode even after washing in deionized water (Fig.…”

Section: Resultsmentioning

confidence: 99%

An in situ reduction strategy toward dendrite-free Zn anodes

Zhou

Wang

et al. 2023

Sci. China Mater.

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Combining three-dimensional (3D) current collectors and zincophilic species is considered an efficient way to construct highly stable Zn metal anodes. Unfortunately, costly and complex preparation processes impede their practical application. Herein, a dendrite-free 3D Zn metal composite anode (Zn@ACC-600@Cu 2+ ) has been rationally designed by plating Zn on a Cu 2+ -coordinated carbon cloth current collector (ACC-600@Cu 2+ ). In particular, during the Zn nucleation process, Cu 2+ is reduced in situ to metallic Cu and then forms a zincophilic Cu-Zn alloy with further Zn deposition. Density functional theory calculations and experimental observations reveal that the Cu-Zn alloy interface can not only act as a zincophilic deposition site for Zn ions but also enhance the conductivity to homogenize the electric field and Zn 2+ flux. Thus, the ACC-600@Cu 2+ host enables the high reversibility of Zn plating/stripping and long cycling stability for more than 410 h with a low-voltage hysteresis of 15.8 mV. As a proof-of-concept demonstration, the assembled Zn@ACC-600@Cu 2+ ||MnO 2 full batteries show a decent rate capability and a substantially enhanced specific capacity of 110 mA h g −1 compared with the pristine carbon cloth-based full cells. This in situ reduction strategy establishes a facile method for designing 3D Zn metal composite anodes that advances the development of dendrite-free and durable Zn metal batteries.

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Section: Resultsmentioning

confidence: 99%

An in situ reduction strategy toward dendrite-free Zn anodes

Zhou

Wang

et al. 2023

Sci. China Mater.

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“…The corresponding Li‐LFP solid‐state cells showed a 94 % capacity retention after 200 cycles [29] . Such coordination strategies could even be used for the transport of other ions, such as divalent metal ions (e. g. Zn 2+ ) and OH − etc [168,173] . Due to the rich hydroxyl and amine groups on chitosan, which could be easily coordinated with Zn 2+ , the obtained chitosan‐Zn GPE has been reported for high Zn 2+ ionic conductivity (72 mS cm −1 ).…”

Section: Polysaccharides Derivatives For Polymer Electrolytesmentioning

confidence: 98%

“… [168] In order to form such coordination, the polysaccharides should be deprotonated and hence such coordination was often synthesized in alkaline solutions and stable with OH − . Furthermore, the chitosan‐Cu membrane has been demonstrated to have a high OH − conductivity of 67 mS cm −1 [173] …”

Section: Polysaccharides Derivatives For Polymer Electrolytesmentioning

confidence: 99%

Natural Pyranosyl Materials: Potential Applications in Solid‐State Batteries

et al. 2023

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Solid-state batteries have become one of the hottest research areas today, due to the use of solid-state electrolytes enabling the high safety and energy density. Because of the interaction with electrolyte salts and the abundant ion transport sites, natural polysaccharide polymers with rich functional groups such as À OH, À OR or À COO À etc. have been applied in solid-state electrolytes and have the merits of possibly high ionic conductivity and sustainability. This review summarizes the recent progress of natural polysaccharides and derivatives for polymer electrolytes, which will stimulate further interest in the application of polysaccharides for solid-state batteries.

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“…With the Cu 0.25 PB NPs as an example, the elemental analysis by XPS shows the existence of Fe, Cu, K, C, and N in the material, and Cu is in the form of Cu 2+ by observing the characteristic satellite peak in the Cu 2p spectrum (Figure S9). 43 The FTIR and absorbance spectra of the CuPB NPs are also provided in Figures S10 and S11. On the oxidation of TMB by H 2 O 2 , the order of the peroxidaselike activity follows Cu 0.25 PB > Cu 0.15 PB ≈ Cu 0.35 PB > Cu 0.5 PB (Figure 3B,C).…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Rational Atomic Engineering of Prussian Blue Analogues as Peroxidase Mimetics for Colorimetric Urinalysis of Uric Acid

Hou

Guo

Zhang

et al. 2023

ACS Sustainable Chem. Eng.

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Nanoparticles of Prussian blue (PB) and its cyanometallate structural analogues are validated as multienzyme mimetics, while there remains a need for improved activities of PB-based nanozymes through rational atomic engineering on the species and amount of doping metal. Herein, we find that the doping of a second divalent 3d metal ion (Co 2+ , Ni 2+ , and Cu 2+ ) into the PB framework results in discriminated peroxidase-like activity, by catalyzing the oxidation reaction of 3,3′,5,5′-tetramethylbenzidine (TMB) with H 2 O 2 . The order of the catalyzed reaction generally follows Cu 2+ -doped PB (CuPB) > PB > Co 2+ -doped PB (CoPB) > Ni 2+ -doped PB (NiPB). Besides the atomic preference over Cu doping, the amount of doped Cu 2+ is rationally engineered for the optimization of peroxidase-like activity. By coupling the optimized CuPB nanoparticles with natural uricase, we develop a cascade reaction system for measuring the uric acid level in human urine specimens, the results of which are well correlated with the standard values determined on instrumentation (R 2 = 0.975). Due to the simplicity of the platform and capability of preparing CuPB nanozyme in a large scale, we envisage the method to be translated into urinalysis of uric acid, especially packaged as a type of assay kits for point-of-care testing.

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A high-performance hydroxide exchange membrane enabled by Cu2+-crosslinked chitosan

Cited by 99 publications

References 55 publications

An in situ reduction strategy toward dendrite-free Zn anodes

An in situ reduction strategy toward dendrite-free Zn anodes

Natural Pyranosyl Materials: Potential Applications in Solid‐State Batteries

Rational Atomic Engineering of Prussian Blue Analogues as Peroxidase Mimetics for Colorimetric Urinalysis of Uric Acid

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