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  1. Article ; Online: Engineering defective trimetallic metal-organic framework nanosheets for advanced water oxidation electrocatalysis.

    Xu, Hui / Wang, Cheng / He, Guangyu / Chen, Haiqun

    Dalton transactions (Cambridge, England : 2003)

    2023  Volume 52, Issue 24, Page(s) 8466–8472

    Abstract: Limited by single metal active sites and low electrical conductivity, designing nickel-based metal-organic framework (MOF) materials with high activity and durability remains a challenge. Here, a novel class of two-dimensional trimetallic MOF nanosheets ... ...

    Abstract Limited by single metal active sites and low electrical conductivity, designing nickel-based metal-organic framework (MOF) materials with high activity and durability remains a challenge. Here, a novel class of two-dimensional trimetallic MOF nanosheets with plentiful active sites, rich metal defects, and facilitated mass and electron transfer channels is developed as efficient electrocatalysts for boosting oxygen evolution reaction (OER). The unique 2D nanosheet structure enlarges the active area; meanwhile, the organic ligand in the MOF can work as a pillar to enlarge the interplanar space to boost the ion and electron transportation, and the synergistic effect between multi-metal active sites can effectively promote the electrocatalytic activity. Interestingly, after an electrochemical activation process, the optimized NiFeZn MOF nanosheets can yield abundant metal defects, enabling them to deliver a low overpotential of 233 mV at 10 mA cm
    Language English
    Publishing date 2023-06-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/d3dt01228j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Cascade Performance of Nitroarenes with Alcohols Boosted by a Hollow Flying Saucer-Shaped Ni-Al

    Li, Weizuo / Shi, Jing / He, Dafang / Chen, Haiqun

    Inorganic chemistry

    2023  Volume 62, Issue 51, Page(s) 21470–21478

    Abstract: Catalysts with an open hollow structure can enhance the mass transfer capability of the catalyst during the reaction process, thereby further improving the catalytic performance. In this work, uniform and monodisperse flying-squircher-shaped Al-MOFs were ...

    Abstract Catalysts with an open hollow structure can enhance the mass transfer capability of the catalyst during the reaction process, thereby further improving the catalytic performance. In this work, uniform and monodisperse flying-squircher-shaped Al-MOFs were synthesized via a solvothermal method. Furthermore, a hollow structure Al
    Language English
    Publishing date 2023-12-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c03629
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Engineering improved strategies for spinel cathodes in high-performing zinc-ion batteries.

    Yuan, Jingjing / Li, Yifan / Xu, Hui / Qiao, Yifan / He, Guangyu / Chen, Haiqun

    Nanoscale

    2024  Volume 16, Issue 3, Page(s) 1025–1037

    Abstract: The development of high-performing cathode materials for aqueous zinc-ion batteries (ZIBs) is highly important for the future large-scale energy storage. Owing to the distinctive framework structure, diversity of valences, and high electrochemical ... ...

    Abstract The development of high-performing cathode materials for aqueous zinc-ion batteries (ZIBs) is highly important for the future large-scale energy storage. Owing to the distinctive framework structure, diversity of valences, and high electrochemical activity, spinel materials have been widely investigated and used for aqueous ZIBs. However, the stubborn issues of low electrical conductivity and sluggish kinetics plague their smooth applications in aqueous ZIBs, which stimulates the development of effective strategies to address these issues. This review highlights the recent advances of spinel-based cathode materials that include the configuration of aqueous ZIBs and corresponding reaction mechanisms. Subsequently, the classifications of spinel materials and their properties are also discussed. Then, the review mainly summarizes the effective strategies for elevating their electrochemical performance, including their morphology and structure design, defect engineering, heteroatom doping, and coupling with a conductive support. In the final section, several sound prospects in this fervent field are also proposed for future research and applications.
    Language English
    Publishing date 2024-01-18
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2515664-0
    ISSN 2040-3372 ; 2040-3364
    ISSN (online) 2040-3372
    ISSN 2040-3364
    DOI 10.1039/d3nr05225g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Mixed-valence Cu-based heterostructures for efficient electrochemical nitrate reduction to ammonia.

    Ye, Jingrui / Yang, Yilin / Teng, Mengjuan / Wang, An / Xia, Jiawei / He, Guangyu / Chen, Haiqun

    Dalton transactions (Cambridge, England : 2003)

    2024  Volume 53, Issue 4, Page(s) 1673–1679

    Abstract: The electrocatalytic ... ...

    Abstract The electrocatalytic NO
    Language English
    Publishing date 2024-01-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/d3dt03849a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Engineering metallenes for boosting electrocatalytic biomass-oxidation-assisted hydrogen evolution reaction.

    Yang, Lida / Wang, Kun / Jin, Lie / Xu, Hui / Chen, Haiqun

    Dalton transactions (Cambridge, England : 2003)

    2023  Volume 52, Issue 33, Page(s) 11378–11389

    Abstract: Metallenes exhibit great potential for catalytic reaction, particularly for the hydrogen evolution reaction (HER) and biomass oxidation reaction, due to their favorable electronic configurations, ultrahigh specific surface areas, and highly accessible ... ...

    Abstract Metallenes exhibit great potential for catalytic reaction, particularly for the hydrogen evolution reaction (HER) and biomass oxidation reaction, due to their favorable electronic configurations, ultrahigh specific surface areas, and highly accessible surface atoms. Therefore, metallenes can function as bifunctional electrocatalysts to boost the energy-saving biomass-oxidation-assisted HER, and have attracted great interest. Given the growing importance of green hydrogen as an alternative energy source in recent years, it is timely and imperative to summarize the recent progress and current status of metallene-based catalysts for the biomass-oxidation-assisted HER. Here, we review the recent advances in metallenes in terms of composition and structural regulations including alloying, nonmetal doping, defect engineering, surface functionalization, and heterostructure engineering strategies and their applications in driving electrocatalytic HER, with special focus on biomass-oxidation-assisted hydrogen production. The underlying structure-activity relationship and mechanisms are also comprehensively discussed. Finally, we also propose the challenges and future directions of metallene-based catalysts for the applications in biomass-oxidation-assisted HER.
    Language English
    Publishing date 2023-08-22
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/d3dt01562a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: g-C3N4 promoted MOF-derived Fe single atoms anchored on N-doped hierarchically porous carbon for high-performance Zn-air batteries

    Chen, Chao / Zhou, Shilong / Xia, Jiawei / Li, Le / Qian, Xingyue / Yin, Fengxiang / He, Guangyu / Chen, Haiqun

    Journal of Colloid And Interface Science. 2024 Jan., v. 653 p.551-560

    2024  

    Abstract: Exploring efficient, easy-to-manufacture, and inexpensive bifunctional electrocatalysts with abundant accessible active sites is crucial for rechargeable zinc-air batteries (ZABs). Herein, we report the strategy consisting of the space confinement and ... ...

    Abstract Exploring efficient, easy-to-manufacture, and inexpensive bifunctional electrocatalysts with abundant accessible active sites is crucial for rechargeable zinc-air batteries (ZABs). Herein, we report the strategy consisting of the space confinement and pore-making engineering to fabricate single-atom catalyst enriched with Fe-N₄ sites anchored on N-doped hierarchically porous carbon (Fe-NC-C₃N₄). The optimized Fe-NC-C₃N₄ exhibits excellent oxygen reduction/evolution reaction (ORR/OER) activities with a half-wave potential (E₁/₂) of 0.90 V vs. RHE and a promising low overpotential of 0.305 V vs. RHE at 10 mA·cm⁻² in alkaline electrolyte. These superior catalytic activities are attributed to the combined effect between the atomic active sites and the well-balanced micro-meso-macropore structures. The homemade liquid Zn-air battery (ZAB) assembled with Fe-NC-C₃N₄ catalyst displays a power density of 133.59 mW·cm⁻² and a significant energy density of 882.58 mAh·g⁻¹, exceeding those of the equipment with commercial Pt/C-RuO₂ (56.82 mW·cm⁻² and 643.87 mAh·g⁻¹, respectively). Particularly, the corresponding flexible wearable ZAB manifests outstanding foldability and cyclical stability. This work opens a new perspective for the structural design of single-atom catalysts in the energy storage and conversion area.
    Keywords batteries ; carbon ; catalysts ; electrolytes ; energy ; energy density ; liquids ; oxygen ; Single-atom catalyst ; g-C3N4 ; Pore-making engineering ; ORR ; Zn-air battery
    Language English
    Dates of publication 2024-01
    Size p. 551-560.
    Publishing place Elsevier Inc.
    Document type Article ; Online
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2023.09.094
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  7. Article: Recent Advances in Solid-Electrolyte Interphase for Li Metal Anode.

    He, Dafang / Lu, Junhong / He, Guangyu / Chen, Haiqun

    Frontiers in chemistry

    2022  Volume 10, Page(s) 916132

    Abstract: Lithium metal batteries (LMBs) are considered to be a substitute for lithium-ion batteries (LIBs) and the next-generation battery with high energy density. However, the commercialization of LMBs is seriously impeded by the uncontrollable growth of ... ...

    Abstract Lithium metal batteries (LMBs) are considered to be a substitute for lithium-ion batteries (LIBs) and the next-generation battery with high energy density. However, the commercialization of LMBs is seriously impeded by the uncontrollable growth of dangerous lithium dendrites during long-term cycling. The generation and growth of lithium dendrites are mainly derived from the unstable solid-electrolyte interphase (SEI) layer on the metallic lithium anode. The SEI layer is a key by-product formed on the surface of the lithium metal anode during the electrochemical reactions and has been the barrier to development in this area. An ideal SEI layer should possess electrical insulating, superior mechanical modulus, high electrochemical stability, and excellent Li-ion conductivity, which could improve the structural stability of the electrode upon a long cycling time. This mini-review carefully summarizes the recent developments in the SEI layer for LMBs, and the relationship between SEI layer optimization and electrochemical property is discussed. In addition, further development direction of a stable SEI layer is proposed.
    Language English
    Publishing date 2022-05-20
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2711776-5
    ISSN 2296-2646
    ISSN 2296-2646
    DOI 10.3389/fchem.2022.916132
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  8. Article ; Online: Recent advances in hollow nanomaterials with multiple dimensions for electrocatalytic water splitting.

    Yang, Lida / Xu, Hui / He, Guangyu / Chen, Haiqun

    Dalton transactions (Cambridge, England : 2003)

    2022  Volume 51, Issue 36, Page(s) 13559–13572

    Abstract: Electrocatalytic water splitting has great research prospects in the production of green hydrogen energy, and electrocatalysts are the prerequisite. As widely employed efficient electrocatalysts, hollow nanostructures have attracted a lot of research ... ...

    Abstract Electrocatalytic water splitting has great research prospects in the production of green hydrogen energy, and electrocatalysts are the prerequisite. As widely employed efficient electrocatalysts, hollow nanostructures have attracted a lot of research attention due to their excellent catalytic activity and structural stability. Moreover, the abundant catalytically active sites and tunable morphology also make hollow nanomaterials promising electrocatalysts for water splitting. Despite these advantages, the industrial applications of these hollow nanocatalysts are impeded by limitations like the lack of effective synthesis methods and unclear formation mechanisms. Therefore, extensive efforts have been devoted to the development of efficient synthesis strategies to boost the development of more efficient hollow electrocatalysts, and great progress has been achieved in recent years. To gain a better understanding of the rapid development of hollow nanocatalysts for water splitting, we herein organize a review to summarize the recent synthetic methods and advantages of hollow materials with different dimensions. The specific advantages of hollow nanomaterials in electrocatalytic water splitting, such as abundant active sites, a stable structure, high mass transfer efficiency, and reduced aggregation of catalytic particles, are also summarized. Finally, the challenges and prospects of hollow nanostructures with multiple dimensions in electrocatalytic water splitting are further explored.
    Language English
    Publishing date 2022-09-20
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/d2dt01757a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Interface coupling induced built-in electric fields boost electrocatalytic oxygen evolution reaction over MOF@LDHs core-shell nanocones

    Yang, Lida / Jin, Lei / Wang, Kun / Xu, Hui / He, Guangyu / Chen, Haiqun

    Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2023 Sept., v. 672 p.131720-

    2023  

    Abstract: Constructing built-in electric fields can guide the efficient electron transfer, which will benefit for the modification of electronic structure to substantially promote the intrinsically catalytic activity toward oxygen evolution reaction (OER). Here, a ...

    Abstract Constructing built-in electric fields can guide the efficient electron transfer, which will benefit for the modification of electronic structure to substantially promote the intrinsically catalytic activity toward oxygen evolution reaction (OER). Here, a p-p heterojunction composed of metal-organic frameworks (MOFs) and layered double hydroxides (LDHs) with rich heterointerfaces is reported. As a proof of concept, the as-prepared MOF@LDH nanocones are demonstrated to be highly effective for OER electrocatalysis, delivering a current density of 10 mA·cm⁻² with the overpotential of merely 270 mV, along with excellent electrochemical cycle stability. The built-in electric field in such p-p heterojunction can boost electron transfer in OER. More importantly, the presence of rich heterointerfaces also endow oxygen intermediates with a balanced adsorption/desorption capability, thus achieving superb electrocatalytic performance. This work realizes the effective integration of built-in electric fields and heterointerface effect for synergistically promoting catalytic OER performance.
    Keywords adsorption ; catalytic activity ; desorption ; electric field ; electrochemistry ; electron transfer ; oxygen ; oxygen production ; MOF ; Built-in electric fields ; Heterointerfaces ; Oxygen evolution reaction
    Language English
    Dates of publication 2023-09
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 1500517-3
    ISSN 0927-7757
    ISSN 0927-7757
    DOI 10.1016/j.colsurfa.2023.131720
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  10. Article ; Online: Hierarchical Hollow CoWO

    Xu, Hui / Wang, Cheng / He, Guangyu / Chen, Haiqun / Du, Yukou

    Inorganic chemistry

    2022  Volume 61, Issue 35, Page(s) 14224–14232

    Abstract: Rational design and construction of well-defined hollow heterostructured nanomaterials assembled by ultrathin nanosheets overtakes crucial role in developing high-efficiency oxygen evolution reaction (OER) electrocatalysts. Herein, a reliable metal- ... ...

    Abstract Rational design and construction of well-defined hollow heterostructured nanomaterials assembled by ultrathin nanosheets overtakes crucial role in developing high-efficiency oxygen evolution reaction (OER) electrocatalysts. Herein, a reliable metal-organic framework-mediated and cation-exchange strategy to tune the geometric structure and multicomponent heterostructures has been proposed for the fabrication of hollow CoWO
    Language English
    Publishing date 2022-08-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.2c02666
    Database MEDical Literature Analysis and Retrieval System OnLINE

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