Boosting the sodium storage performance of Prussian blue analogs by single-crystal and high-entropy approach

Huang, Yao; Zhang, Xuan; Ji, Lei; Wang, Li; Xu, Ben Bin; Shahzad, Muhammad Wakil; Tang, Yuxin; Zhu, Yaofeng; Yan, Mi; Sun, Guoxing; Jiang, Yinzhu

doi:10.1016/j.ensm.2023.03.011

Cited by 59 publications

(34 citation statements)

References 45 publications

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“…After a thorough study, it is revealed that the superb electrocatalytic performance is stemmed from the enlarged ECSA after NH 3 ·H 2 O etching, which can thus expose more catalytically active sites toward the electrooxidation reactions. More significantly, XPS analysis also revealed that the NH 3 ·H 2 O etching can create a higher concentration of high oxidation states of metals, which can serve as active species toward electrooxidation reactions. , Furthermore, the strong synergistic effect evolved from the multielement active sites also contributes to the improved electrocatalytic performance. − Upon combination of these advantages, HE-PBA-e can thus deliver superb electrocatalytic performance toward OER, EOR, and UOR.…”

Section: Resultsmentioning

confidence: 99%

“…More significantly, XPS analysis also revealed that the NH 3 • H 2 O etching can create a higher concentration of high oxidation states of metals, which can serve as active species toward electrooxidation reactions. 41,42 Furthermore, the strong synergistic effect evolved from the multielement active sites also contributes to the improved electrocatalytic performance. 43−52 Upon combination of these advantages, HE-PBA-e can thus deliver superb electrocatalytic performance toward OER, EOR, and UOR.…”

Section: Resultsmentioning

confidence: 99%

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Etched High-Entropy Prussian Blue Analogues as Trifunctional Catalysts for Water, Ethanol, and Urea Electrooxidation

Yang

Wang

et al. 2023

Inorg. Chem.

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The introduction of high-entropy and high specific surface area into Prussian blue analogues (PBAs) has yet to create interest in the field of electrocatalytic small-molecule oxidation reactions. Herein, we synthesize a novel class of high-entropy (HE) PBAs with a high specific surface area via a simple NH 3 •H 2 Oetching strategy and systematically investigate the electrocatalytic performance of HE-PBA toward electrocatalytic water, ethanol, and urea oxidation reactions. Importantly, the NH 3 •H 2 O-etched HE-PBA (denoted as HE-PBA-e) demonstrated enhanced electrocatalytic performance toward small-molecule oxidation compared to the pristine HE-PBA, reaching 10 mA cm −2 with potentials of 1.56, 1.41, and 1.37 V for the oxygen evolution reaction (OER), ethanol oxidation reaction (EOR), and urea oxidation reaction (UOR), respectively. Deep characterizations suggest that the NH 3 • H 2 O etching treatment not only creates rich nanopores to enlarge the surface area and boosts the mass transport and electron transfer but also facilitates the formation of high-valence metal oxides to improve the intrinsic activity. This demonstration of how systematically increasing the high oxidation state of metals will serve as a governing principle for the rational design of more advanced HE-PBAs toward the electrooxidation of small molecules.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Etched High-Entropy Prussian Blue Analogues as Trifunctional Catalysts for Water, Ethanol, and Urea Electrooxidation

Yang

Wang

et al. 2023

Inorg. Chem.

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“…[ 51,64,67 ] High‐entropy single‐crystal PBAs (10 µm) were prepared by a modified coprecipitation method to reduce the number of grain boundaries to suppress surface side reactions and increase the chemical/thermal stability by the use of micro‐sized particles. [ 70 ] The optimized cathode exhibited excellent electrochemical performance, with a high capacity retention rate of 79.6% after 1000 cycles at 100 mA g −1 . Microspherical PB was assembled from cubic primary particles by spray drying and then coated with reduced graphene oxide to improve its ionic conductivity.…”

Section: Characterization and Selection Of Suitable Cathode Materialsmentioning

confidence: 99%

Practical Cathodes for Sodium‐Ion Batteries: Who Will Take The Crown?

Liang,

Hwang,

Sun

2023

Advanced Energy Materials

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In recent decades, sodium‐ion batteries (SIBs) have received increasing attention because they offer cost and safety advantages and avoid the challenges related to limited lithium/cobalt/nickel resources and environmental pollution. Because the sodium storage performance and production cost of SIBs are dominated by the cathode performance, developing cathode materials with large‐scale production capacity is the key to achieving commercial applications of SIBs. Therefore, developing host materials with high energy density, long cycling life, low production cost, and high chemical/environmental stability is crucial for implementing advanced SIBs. Among the developed cathode materials for SIBs, O3‐type sodiated transition‐metal oxides have attracted extensive attention owing to their simple synthesis methods, high theoretical specific capacity, and sufficient Na content. However, the relatively large Na‐ion radius leads to sluggish diffusion kinetics and inevitable complex phase transitions during the deintercalation/intercalation process, resulting in poor rate capability and cycling stability. Therefore, this review comprehensively summarizes the research progress and modification strategies for O3‐type cathodes, including the component design, surface modification, and optimization of synthesis methods. This work aims to guide the development of commercial layered oxides and provide technical support for the next generation of energy‐storage systems.

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“…The precise synthesis of high-entropy materials can be achieved by a simple coprecipitation method. 26 In this method, by selecting different numbers and types of metal ions, the redox reaction occurs under the action of cyanide, and the resulting high-entropy Prussian blue analogue (HEPBA) can gradually aggregate to form a stable crystal structure and precipitate out (Figure 1c, d). In the framework structure of HEPBA, the number and position of atoms with individual functionalities are randomly distributed.…”

Section: Atomic Manufacturing For Electrode Materialsmentioning

confidence: 99%

Atomic Manufacturing in Electrode Materials for High-Performance Batteries

Shen,

Zou,

Zeng

et al. 2023

ACS Nano

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The advancement of electrode materials plays a pivotal role in enhancing the performance of energy storage devices, thereby meeting the escalating need for energy storage and aligning with the imperative of sustainable development. Atomic manufacturing enables the precise manipulation of the crystal structure at the atomic level, thereby facilitating the development of electrode materials with customized physicochemical properties and enhancing their performance. In this Perspective, we elaborate on how atomic manufacturing enhances the important properties of electrode materials. Finally, we anticipate the prospect of materials and fabrication methods for atomic manufacturing in the future. This Perspective provides a comprehensive understanding for atomic manufacturing in electrode materials.

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Boosting the sodium storage performance of Prussian blue analogs by single-crystal and high-entropy approach

Cited by 59 publications

References 45 publications

Etched High-Entropy Prussian Blue Analogues as Trifunctional Catalysts for Water, Ethanol, and Urea Electrooxidation

Etched High-Entropy Prussian Blue Analogues as Trifunctional Catalysts for Water, Ethanol, and Urea Electrooxidation

Practical Cathodes for Sodium‐Ion Batteries: Who Will Take The Crown?

Atomic Manufacturing in Electrode Materials for High-Performance Batteries

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