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  • Wiley  (4)
  • Xiong, Yujie  (4)
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  • Wiley  (4)
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  • 1
    Online Resource
    Online Resource
    V‐Doped Cu 2 Se Hierarchical Nanotubes Enabling Flow‐Cell CO 2 Electroreduction to Ethanol with High Efficiency and Selectivity
    Wiley ; 2022
    In:  Advanced Materials Vol. 34, No. 50 ( 2022-12)
    Details
    In: Advanced Materials, Wiley, Vol. 34, No. 50 ( 2022-12)
    Abstract: CO 2 electrocatalytic reduction (CO 2 ER) to multicarbon (C 2+ ) products is heavily pursued because of their commercial values, and the efficiency and selectivity have both attracted tremendous attention. A flow‐cell is a device configuration that can greatly enhance the conversion efficiency but requires catalysts to possess high electrical conductivity and gas permeability; meanwhile, the catalysts should enable the reaction pathway to specific products. Herein, it is reported that V‐doped Cu 2 Se nanotubes with a hierarchical structure can be perfectly compatible with flow‐cells and fulfil such a task, achieving CO 2 electroreduction to ethanol with high efficiency and selectivity. As revealed by the experimental characterization and theoretical calculation, the substitutional vanadium doping alters the local charge distribution of Cu 2 Se and diversifies the active sites. The unique active sites promote the formation of bridge *CO B and its further hydrogenation to *COH, and, as such, the subsequent coupling of *COH and *CO L eventually generates ethanol. As a result, the optimal Cu 1.22 V 0.19 Se nanotubes can electrocatalyze CO 2 to ethanol with a Faradaic efficiency of 68.3% and a partial current density of −207.9 mA cm −2 for the single liquid product of ethanol at −0.8 V in a flow‐cell. This work provides insights into the materials design for steering the reaction pathway toward C 2+ products, and opens an avenue for flow‐cell CO 2 ER toward a single C 2+ liquid fuel.
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Issue
    URL: Article
    DOI: 10.1002/adma.v34.50
    DOI: 10.1002/adma.202207691
    RVK:
    UA 1538
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1474949-X
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Ag + ‐Doped InSe Nanosheets for Membrane Electrode Assembly Electrolyzer toward Large‐Current Electroreduction of CO 2 to Ethanol
    Wiley ; 2023
    In:  Angewandte Chemie Vol. 135, No. 48 ( 2023-11-27)
    Details
    In: Angewandte Chemie, Wiley, Vol. 135, No. 48 ( 2023-11-27)
    Abstract: It is an appealing approach to CO 2 utilization through CO 2 electroreduction (CO 2 ER) to ethanol at high current density; however, the commonly used Cu‐based catalysts cannot sustain large current during CO 2 ER despite their capability for ethanol production. Herein, we report that Ag + ‐doped InSe nanosheets with Se vacancies can address this grand challenge in a membrane electrode assembly (MEA) electrolyzer. As revealed by our experimental characterization and theoretical calculation, the Ag + doping, which can tailor the electronic structure of InSe while diversifying catalytically active sites, enables the formation of key reaction intermediates and their sequential evolution into ethanol. More importantly, such a material can well work for large‐current conditions in MEA electrolyzers with In 2+ species stabilized via electron transfer from Ag to Se. Remarkably, in an MEA electrolyzer by coupling cathodic CO 2 ER with anodic oxygen evolution reaction (OER), the optimal catalyst exhibits an ethanol Faradaic efficiency of 68.7 % and a partial current density of 186.6 mA cm −2 on the cathode with a full‐cell ethanol energy efficiency of 26.1 % at 3.0 V. This work opens an avenue for large‐current production of ethanol from CO 2 with high selectivity and energy efficiency by rationally designing electrocatalysts.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v135.48
    DOI: 10.1002/ange.202313646
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 505868-5
    detail.hit.zdb_id: 506609-8
    detail.hit.zdb_id: 514305-6
    detail.hit.zdb_id: 505872-7
    detail.hit.zdb_id: 1479266-7
    detail.hit.zdb_id: 505867-3
    detail.hit.zdb_id: 506259-7
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Designing Highly Efficient and Long‐Term Durable Electrocatalyst for Oxygen Evolution by Coupling B and P into Amorphous Porous NiFe‐Based Material
    Wiley ; 2019
    In:  Small Vol. 15, No. 28 ( 2019-07)
    Details
    In: Small, Wiley, Vol. 15, No. 28 ( 2019-07)
    Abstract: Oxygen evolution reaction (OER) is of great significance for hydrogen production via water electrolysis, which, however, demands development of highly active, durable, and cost‐effective electrocatalysts in order to stride into a renewable energy era. Herein, highly efficient and long‐term durable OER by coupling B and P into an amorphous porous NiFe‐based electrocatalyst is reported, which possesses an amorphous porous metallic bulk structure and high corrosion resistance, and overcomes the issues associated with currently used catalyst nanomaterials. The PB codoping in the activated NiFePB (a‐NiFePB) delocalizes both Fe and Ni at Fermi energy level and enhances p–d hybridization as simulated by density functional theory calculations. The harmonized electronic structure and unique porous framework of the a‐NiFePB consequently improve the OER activity. The activated NiFePB thus exhibits an extraordinarily low overpotential of 197 mV for harvesting 10 mA cm −2 OER current density and 233 mV for reaching 100 mA cm −2 under chronopotentiometry condition, with the Tafel slope harmoniously conforming to 34 mV dec −1 . Impressive long‐term stability of this new catalyst is evidenced by only limited activity decay after 1400 h operation at 100 mA cm −2 . This work strategically directs a way for heading up a promising energy conversion alternative.
    Type of Medium: Online Resource
    ISSN: 1613-6810 , 1613-6829
    URL: Issue
    URL: Article
    DOI: 10.1002/smll.v15.28
    DOI: 10.1002/smll.201901020
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2168935-0
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    Online Resource
  • 4
    Online Resource
    Online Resource
    Ag + ‐Doped InSe Nanosheets for Membrane Electrode Assembly Electrolyzer toward Large‐Current Electroreduction of CO 2 to Ethanol
    Wiley ; 2023
    In:  Angewandte Chemie International Edition Vol. 62, No. 48 ( 2023-11-27)
    Details
    In: Angewandte Chemie International Edition, Wiley, Vol. 62, No. 48 ( 2023-11-27)
    Abstract: It is an appealing approach to CO 2 utilization through CO 2 electroreduction (CO 2 ER) to ethanol at high current density; however, the commonly used Cu‐based catalysts cannot sustain large current during CO 2 ER despite their capability for ethanol production. Herein, we report that Ag + ‐doped InSe nanosheets with Se vacancies can address this grand challenge in a membrane electrode assembly (MEA) electrolyzer. As revealed by our experimental characterization and theoretical calculation, the Ag + doping, which can tailor the electronic structure of InSe while diversifying catalytically active sites, enables the formation of key reaction intermediates and their sequential evolution into ethanol. More importantly, such a material can well work for large‐current conditions in MEA electrolyzers with In 2+ species stabilized via electron transfer from Ag to Se. Remarkably, in an MEA electrolyzer by coupling cathodic CO 2 ER with anodic oxygen evolution reaction (OER), the optimal catalyst exhibits an ethanol Faradaic efficiency of 68.7 % and a partial current density of 186.6 mA cm −2 on the cathode with a full‐cell ethanol energy efficiency of 26.1 % at 3.0 V. This work opens an avenue for large‐current production of ethanol from CO 2 with high selectivity and energy efficiency by rationally designing electrocatalysts.
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    URL: Article
    DOI: 10.1002/anie.v62.48
    DOI: 10.1002/anie.202313646
    RVK:
    VA 2100
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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    Online Resource
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