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  • 1
    Online Resource
    Online Resource
    Spherical Sacrificial ZnO Template–Derived Hybrid Ni/Co 3 O 4 Cubes as Efficient Bifunctional Electrocatalyst for Overall Water Splitting
    Wiley ; 2020
    In:  Energy Technology Vol. 8, No. 5 ( 2020-05)
    Details
    In: Energy Technology, Wiley, Vol. 8, No. 5 ( 2020-05)
    Abstract: Heterostructure transition metal derivatives have been extensively studied in electrocatalysis, but most of the hybrid samples are on nanoscale with low stability and tap density. ZnO microspheres are applied as a sacrificial template, followed by alkaline etching and aluminum reduction to construct Ni/Co 3 O 4 microcubes. The porous hybrid microcubes show stirring performance in both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). For HER, it exhibits comparable overpotential of 145 mV at 10 mA cm −2 as Pt/C (101 mV) and desirable stability. For OER, it outperforms RuO 2 with lower overpotential when the current exceeds 17.8 mA cm −2 and much smaller Tafel slope of 34 mV dec −1 versus RuO 2 (72 mV dec −1 ). The potential activity is assigned to the charge transfer at the heterointerfaces, and the synergic effects of the Ni/Co 3 O 4 phases, which possibly will cast light on the design of microscale bifunctional electrocatalysts.
    Type of Medium: Online Resource
    ISSN: 2194-4288 , 2194-4296
    URL: Issue
    URL: Article
    DOI: 10.1002/ente.v8.5
    DOI: 10.1002/ente.201901310
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2700412-0
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  • 2
    Online Resource
    Online Resource
    ZnO‐Templated Selenized and Phosphorized Cobalt‐Nickel Oxide Microcubes as Rapid Alkaline Water Oxidation Electrocatalysts
    Wiley ; 2020
    In:  Chemistry – A European Journal Vol. 26, No. 6 ( 2020-01-27), p. 1306-1313
    Details
    In: Chemistry – A European Journal, Wiley, Vol. 26, No. 6 ( 2020-01-27), p. 1306-1313
    Abstract: Oxygen electrocatalysis is of remarkable significance for electrochemical energy storage and conversion technologies, together with fuel cells, metal‐air batteries, and water splitting devices. Substituting noble metal‐based electrocatalysts by decidedly effective and low‐cost metal‐based oxygen electrocatalysts is imperative for the commercial application of these technologies. Herein, a novel strategy is presented to fabricate selenized and phosphorized porous cobalt‐nickel oxide microcubes by using a sacrificial ZnO spherical template and the resulting microcubes are employed as an oxygen evolution reaction (OER) electrocatalyst. The selenized samples manifest desirable and robust OER performance, with comparable overpotential at 10 mA cm −2 (312 mV) as RuO 2 (308 mV) and better activity when the current reaches 13.7 mA cm −2 . The phosphorized samples exhibit core–shell structure with low‐crystalline oxides inside amorphous phosphides, which ensures superior activity than RuO 2 with the same overpotential (at 10 mA cm −2 ) yet lower Tafel slope. Such a surface doping method possibly will provide inspiration for engineering electrocatalysts applied in water oxidation.
    Type of Medium: Online Resource
    ISSN: 0947-6539 , 1521-3765
    URL: Issue
    URL: Article
    DOI: 10.1002/chem.v26.6
    DOI: 10.1002/chem.201903508
    RVK:
    VA 1120 ; VA 3507
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 1478547-X
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  • 3
    Online Resource
    Online Resource
    Proton-insertion-pseudocapacitance of tungsten bronze tunnel structure enhanced by transition metal ion anchoring
    Royal Society of Chemistry (RSC) ; 2021
    In:  Nanoscale Vol. 13, No. 39 ( 2021), p. 16790-16798
    Details
    In: Nanoscale, Royal Society of Chemistry (RSC), Vol. 13, No. 39 ( 2021), p. 16790-16798
    Abstract: The one-dimensional channel array of hexagonal tungsten bronze (WO 3 ) offers an electron transfer matrix, but its overwhelming H + adsorption hinders it from being a good supercapacitor electrode material. Inspired by the Volcano plot on the relation between transition-metal and free energy of H-adsorption, we propose a new strategy to anchor transition metal ions (Zn 2+ , Cu 2+ , Ni 2+ , Ag + , Au 3+ and Ir 3+ ) into the WO 3 lattice to improve proton-insertion based pseudocapacitance. Among the variety of transition metals, Zn 2+ exhibits the optimal O 2p band center, which matches well with the best experimental capacitive behavior. The molar ratio of Zn/WO 3 ranges from 0.2 to 0.6. The specific capacitance for Zn 2+ -anchored WO 3 (390 F g −1 ) reaches 202% of that of WO 3 (193 F g −1 ) at 0.5 A g −1 with robust stability (259 F g −1 at 3 A g −1 for 3000 cycles). Density functional theory confirms that O 2p is shifted down by the d-filling cations, which corresponds to alleviated O–H interaction and facilitated H + desorption. The band tuning by transition-metal-ion incorporation would break new ground on developing high-capacitance metal oxide supercapacitors.
    Type of Medium: Online Resource
    ISSN: 2040-3364 , 2040-3372
    URL: Article
    DOI: 10.1039/D1NR02384E
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2021
    detail.hit.zdb_id: 2515664-0
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  • 4
    Online Resource
    Online Resource
    ZnO/ZnS heterostructure with enhanced interfacial lithium absorption for robust and large-capacity energy storage
    Royal Society of Chemistry (RSC) ; 2022
    In:  Energy & Environmental Science Vol. 15, No. 11 ( 2022), p. 4738-4747
    Details
    In: Energy & Environmental Science, Royal Society of Chemistry (RSC), Vol. 15, No. 11 ( 2022), p. 4738-4747
    Abstract: Heterostructure construction, especially for anodes, is an effective strategy to promote electron transfer and improve surface reaction dynamics, thus achieving high performance in lithium-ion batteries. Herein, in situ partial conversion of metal sulfide to oxide with high lattice match is utilized to engineer a ZnO/ZnS heterostructure. The mosaic ZnO/ZnS heterostructure with abundant interfaces is activated into homogeneous zinc oxysulfide with size optimization during cycling, which delivers 920 mA h g −1 after 1300 cycles even at 2 A g −1 . A pouch-type full cell (LiCoO 2 ‖ZnO/ZnS) is assembled and maintains over 85% of its initial capacity after 300 cycles at 2C, confirming its potential practicability. Theoretical calculations predict that, combined with LiZn nanodots, the Li 2 O/Li 2 S matrix is endowed with more Li anchoring sites and higher Li adsorption energy. Therefore, the interfacial charge redistribution is modified to contribute high interfacial Li storage. The reasonable interfacial engineering by designing a mosaic heterostructure breaks new grounds for the design of large-capacity and high-reversibility conversion-alloying-type anodes.
    Type of Medium: Online Resource
    ISSN: 1754-5692 , 1754-5706
    URL: Article
    DOI: 10.1039/D2EE00050D
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2022
    detail.hit.zdb_id: 2439879-2
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  • 5
    Online Resource
    Online Resource
    Band structure engineering of W replacement in ReSe 2 nanosheets for enhancing hydrogen evolution
    Royal Society of Chemistry (RSC) ; 2022
    In:  Chemical Communications Vol. 58, No. 16 ( 2022), p. 2682-2685
    Details
    In: Chemical Communications, Royal Society of Chemistry (RSC), Vol. 58, No. 16 ( 2022), p. 2682-2685
    Abstract: Layered transition metal dichalcogenide rhenium selenide (ReSe 2 ) has attracted great attention as an electrocatalyst for the hydrogen evolution reaction (HER) due to its excellent stability and sufficient active sites. However, ReSe 2 has intrinsically poor conductivity, which leads to the insufficient utilization of electrocatalytic active sites. Herein, we designed the regulation of the electronic band structure by W replacement in ReSe 2 nanosheets to greatly improve the conductivity. The Re 0.7 W 0.3 Se 2 exhibits an overpotential of 141 mV at 10 mA cm −2 and a Tafel slope of 65.3 mV dec −1 , superior to that of the original ReSe 2 and WSe 2 . This work aims to provide a feasible strategy to promote the HER activity of ReSe 2 .
    Type of Medium: Online Resource
    ISSN: 1359-7345 , 1364-548X
    URL: Article
    DOI: 10.1039/D1CC07151C
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2022
    detail.hit.zdb_id: 1472881-3
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  • 6
    Online Resource
    Online Resource
    A comparative overview of carbon anodes for nonaqueous alkali metal-ion batteries
    Royal Society of Chemistry (RSC) ; 2021
    In:  Journal of Materials Chemistry A Vol. 9, No. 48 ( 2021), p. 27140-27169
    Details
    In: Journal of Materials Chemistry A, Royal Society of Chemistry (RSC), Vol. 9, No. 48 ( 2021), p. 27140-27169
    Abstract: Since the commercialization of the graphite anode by Sony in 1991, extensive research findings have demonstrated that carbon-based materials are promising candidates for lithium-ion batteries (LIBs) and “post lithium-ion batteries,” sodium-ion batteries (SIBs)/potassium-ion batteries (PIBs). These three alkali-ion batteries consist of similar components and electrochemical reaction mechanisms in carbon materials, while some significant difference proved to exist in their electrochemical storage behaviors. This review presents a comprehensive comparison of Li + /Na + /K + storage behavior in carbon anode materials (graphite, graphene, soft carbon and hard carbon) in view of the possible storage mechanism and favorable strategies to enhance their electrochemical performance. Hence, a better understanding of the relationship between the structure, charge storage mechanism and electrochemical behavior of carbon materials is provided. Finally, critical issues and perspectives are discussed to demonstrate prospective research directions for carbon anode materials in these alkali metal-ion batteries.
    Type of Medium: Online Resource
    ISSN: 2050-7488 , 2050-7496
    URL: Article
    DOI: 10.1039/D1TA07962J
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2021
    detail.hit.zdb_id: 2702232-8
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  • 7
    Online Resource
    Online Resource
    One‐Step Construction of Ordered Sulfur‐Terminated Tantalum Carbide MXene for Efficient Overall Water Splitting
    Wiley ; 2022
    In:  Small Structures Vol. 3, No. 3 ( 2022-03)
    Details
    In: Small Structures, Wiley, Vol. 3, No. 3 ( 2022-03)
    Abstract: Hydrogen production from electrolyzed water plays an important role in clean energy system, but the current reported non‐noble metal catalysts still need to be paired with commercial Pt/C or RuO 2 for overall water splitting. It is still a great challenge to develop high activity and stability bifunctional catalysts for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in the same medium. To date, the emerging 2D MXenes have been extensively studied in the field of electrocatalysis because of their interesting surface physicochemical characteristics. However, the preparation process is very complex and difficult. Their intrinsic electrocatalytic properties are not good enough due to the disordered terminal groups (‐OH/‐F/‐Cl). Herein, the traditional preparation procedure is optimized, and the 2D layered compound Ta 2 CS 2 is directly synthesized by a one‐step method. Unlike the typical MXenes with disorderly terminated groups, Ta 2 CS 2 is terminated orderly with S atoms, and it shows excellent conductivity and electrochemical properties. Based on the great performance for OER and HER, the exfoliated Ta 2 CS 2 (Ta 2 CS 2 ‐E) is found to be an outstanding bifunctional catalyst of MXenes‐based materials for overall water splitting.
    Type of Medium: Online Resource
    ISSN: 2688-4062 , 2688-4062
    URL: Issue
    URL: Article
    DOI: 10.1002/sstr.v3.3
    DOI: 10.1002/sstr.202100206
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 3035497-3
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  • 8
    Online Resource
    Online Resource
    Materials design and preparation for high energy density and high power density electrochemical supercapacitors
    Elsevier BV ; 2023
    In:  Materials Science and Engineering: R: Reports Vol. 152 ( 2023-02), p. 100713-
    Details
    In: Materials Science and Engineering: R: Reports, Elsevier BV, Vol. 152 ( 2023-02), p. 100713-
    Type of Medium: Online Resource
    ISSN: 0927-796X
    URL: Article
    DOI: 10.1016/j.mser.2022.100713
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2023
    detail.hit.zdb_id: 2012178-7
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  • 9
    Online Resource
    Online Resource
    A Heteroanionic Zinc Ion Conductor for Dendrite‐Free Zn Metal Anodes
    Wiley ; 2023
    In:  Advanced Materials Vol. 35, No. 18 ( 2023-05)
    Details
    In: Advanced Materials, Wiley, Vol. 35, No. 18 ( 2023-05)
    Abstract: Although zinc‐based batteries are promising candidates for eco‐friendly and cost‐effective energy storage devices, their performance is severely retarded by dendrite formation. As the simplest zinc compounds, zinc chalcogenides, and halides are individually applied as a Zn protection layer due to high zinc ion conductivity. However, the mixed‐anion compounds are not studied, which constrains the Zn 2+ diffusion in single‐anion lattices to their own limits. A heteroanionic zinc ion conductor (Zn y O 1− x F x ) coating layer is designed by in situ growth method with tunable F content and thickness. Strengthened by F aliovalent doping, the Zn 2+ conductivity is enhanced within the wurtzite motif for rapid lattice Zn migration. Zn y O 1− x F x also affords zincophilic sites for oriented superficial Zn plating to suppress dendrite growth. Therefore, Zn y O 1− x F x ‐coated anode exhibits a low overpotential of 20.4 mV for 1000 h cycle life at a plating capacity of 1.0 mA h cm −2 during symmetrical cell test. The MnO 2 //Zn full battery further proves high stability of 169.7 mA h g −1 for 1000 cycles. This work may enlighten the mixed‐anion tuning for high‐performance Zn‐based energy storage devices.
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Issue
    URL: Article
    DOI: 10.1002/adma.v35.18
    DOI: 10.1002/adma.202300195
    RVK:
    UA 1538
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 1474949-X
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  • 10
    Online Resource
    Online Resource
    A Dual‐Functional Titanium Nitride Chloride Layered Matrix with Facile Lithium‐Ion Diffusion Path and Decoupled Electron Transport as High‐Capacity Anodes
    Wiley ; 2022
    In:  Advanced Functional Materials Vol. 32, No. 25 ( 2022-06)
    Details
    In: Advanced Functional Materials, Wiley, Vol. 32, No. 25 ( 2022-06)
    Abstract: Intercalation typed electrodes are expected with low theoretical capacity, which falls behind their high rate performance and stability. In this work, α‐TiNCl, an isoelectronic system of TiO 2 , is designed as a promising high‐capacity intercalation anode. TiNCl features are layered TiN backbone terminated by Cl atoms. While the rocksalt TiN backbones function as electron conductors, the interlayer voids provide Cl‐coordinated Li + sites without strong Li‐Ti repulsion, which proves to be a rapid diffusion path with a low energy barrier (0.06 vs 0.47 eV of TiO 2 ). Therefore, a dual‐functional TiNCl matrix is established for Li + and e – transport. To stabilize the layered structure, TiNCl is scaffolded by an in situ grown TiO 2 coating, which also serves as an electron reservoir during lithiation. The TiNCl‐TiO 2 anode exhibits significantly large Li + intercalation capacity (243% of TiO 2 ) and outstanding battery performance (231 mA h g –1 at ≈17 C for 2500 cycles, 94 mA h g –1 at ≈34 C for 10 000 cycles). The (+) LiCoO 2  || TiNCl‐TiO 2 (–) full battery maintains 170 mA h g –1 for 300 cycles. This work may shed light on the molecular engineering of new compounds for electrodes.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    URL: Article
    DOI: 10.1002/adfm.v32.25
    DOI: 10.1002/adfm.202112074
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
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