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Superior Electrical Conductivity in Hydrogenated Layered Ternary Chalcogenide Nanosheets for Flexible All‐Solid‐State Supercapacitors

As the properties of ultrathin two‐dimensional (2D) crystals are strongly related to their electronic structures, more and more attempts were carried out to tune their electronic structures to meet the high standards for the construction of next‐generation smart electronics. Herein, for the first ti... Full description

Journal Title: Angewandte Chemie 04 May 2016, Vol.128(19), pp.5827-5832
Main Author: Hu, Xin
Other Authors: Shao, Wei , Hang, Xudong , Zhang, Xiaodong , Zhu, Wenguang , Xie, Yi
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0044-8249 ; E-ISSN: 1521-3757 ; DOI: 10.1002/ange.201600029
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recordid: wj10.1002/ange.201600029
title: Superior Electrical Conductivity in Hydrogenated Layered Ternary Chalcogenide Nanosheets for Flexible All‐Solid‐State Supercapacitors
format: Article
creator:
  • Hu, Xin
  • Shao, Wei
  • Hang, Xudong
  • Zhang, Xiaodong
  • Zhu, Wenguang
  • Xie, Yi
subjects:
  • Elektrische Leitfähigkeit
  • Festkörpersuperkondensatoren
  • Nanoschichten
  • Ternäre Chalkogenide
  • Wasserstoff-Einlagerung
ispartof: Angewandte Chemie, 04 May 2016, Vol.128(19), pp.5827-5832
description: As the properties of ultrathin two‐dimensional (2D) crystals are strongly related to their electronic structures, more and more attempts were carried out to tune their electronic structures to meet the high standards for the construction of next‐generation smart electronics. Herein, for the first time, we show that the conductive nature of layered ternary chalcogenide with formula of CuWS can be switched from semiconducting to metallic by hydrogen incorporation, accompanied by a high increase in electrical conductivity. In detail, the room‐temperature electrical conductivity of hydrogenated‐CuWS nanosheet film was almost 10 times higher than that of pristine bulk sample with a value of about 2.9×10 S m, which is among the best values for conductive 2D nanosheets. In addition, the metallicity in the hydrogenated‐CuWS is robust and can be retained under high‐temperature treatment. The fabricated all‐solid‐state flexible supercapacitor based on the hydrogenated‐CuWS nanosheet film shows promising electrochemical performances with capacitance of 583.3 F cm at a current density of 0.31 A cm. This work not only offers a prototype material for the study of electronic structure regulation in 2D crystals, but also paves the way in searching for highly conductive electrodes. : Das Leitfähigkeitsverhalten des schichtförmigen ternären Chalkogenids CuWS kann durch die Einlagerung von Wasserstoff von halbleitend zu metallisch geschaltet werden, einhergehend mit einem starken Anstieg der Leitfähigkeit. Die metallischen hydrierten CuWS‐Nanoschichten wurden als Elektrode in einem Festkörpersuperkondensator eingesetzt.
language: eng
source:
identifier: ISSN: 0044-8249 ; E-ISSN: 1521-3757 ; DOI: 10.1002/ange.201600029
fulltext: fulltext
issn:
  • 0044-8249
  • 00448249
  • 1521-3757
  • 15213757
url: Link


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titleSuperior Electrical Conductivity in Hydrogenated Layered Ternary Chalcogenide Nanosheets for Flexible All‐Solid‐State Supercapacitors
creatorHu, Xin ; Shao, Wei ; Hang, Xudong ; Zhang, Xiaodong ; Zhu, Wenguang ; Xie, Yi
ispartofAngewandte Chemie, 04 May 2016, Vol.128(19), pp.5827-5832
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subjectElektrische Leitfähigkeit ; Festkörpersuperkondensatoren ; Nanoschichten ; Ternäre Chalkogenide ; Wasserstoff-Einlagerung
descriptionAs the properties of ultrathin two‐dimensional (2D) crystals are strongly related to their electronic structures, more and more attempts were carried out to tune their electronic structures to meet the high standards for the construction of next‐generation smart electronics. Herein, for the first time, we show that the conductive nature of layered ternary chalcogenide with formula of CuWS can be switched from semiconducting to metallic by hydrogen incorporation, accompanied by a high increase in electrical conductivity. In detail, the room‐temperature electrical conductivity of hydrogenated‐CuWS nanosheet film was almost 10 times higher than that of pristine bulk sample with a value of about 2.9×10 S m, which is among the best values for conductive 2D nanosheets. In addition, the metallicity in the hydrogenated‐CuWS is robust and can be retained under high‐temperature treatment. The fabricated all‐solid‐state flexible supercapacitor based on the hydrogenated‐CuWS nanosheet film shows promising electrochemical performances with capacitance of 583.3 F cm at a current density of 0.31 A cm. This work not only offers a prototype material for the study of electronic structure regulation in 2D crystals, but also paves the way in searching for highly conductive electrodes. : Das Leitfähigkeitsverhalten des schichtförmigen ternären Chalkogenids CuWS kann durch die Einlagerung von Wasserstoff von halbleitend zu metallisch geschaltet werden, einhergehend mit einem starken Anstieg der Leitfähigkeit. Die metallischen hydrierten CuWS‐Nanoschichten wurden als Elektrode in einem Festkörpersuperkondensator eingesetzt.
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descriptionAs the properties of ultrathin two‐dimensional (2D) crystals are strongly related to their electronic structures, more and more attempts were carried out to tune their electronic structures to meet the high standards for the construction of next‐generation smart electronics. Herein, for the first time, we show that the conductive nature of layered ternary chalcogenide with formula of CuWS can be switched from semiconducting to metallic by hydrogen incorporation, accompanied by a high increase in electrical conductivity. In detail, the room‐temperature electrical conductivity of hydrogenated‐CuWS nanosheet film was almost 10 times higher than that of pristine bulk sample with a value of about 2.9×10 S m, which is among the best values for conductive 2D nanosheets. In addition, the metallicity in the hydrogenated‐CuWS is robust and can be retained under high‐temperature treatment. The fabricated all‐solid‐state flexible supercapacitor based on the hydrogenated‐CuWS nanosheet film shows promising electrochemical performances with capacitance of 583.3 F cm at a current density of 0.31 A cm. This work not only offers a prototype material for the study of electronic structure regulation in 2D crystals, but also paves the way in searching for highly conductive electrodes. : Das Leitfähigkeitsverhalten des schichtförmigen ternären Chalkogenids CuWS kann durch die Einlagerung von Wasserstoff von halbleitend zu metallisch geschaltet werden, einhergehend mit einem starken Anstieg der Leitfähigkeit. Die metallischen hydrierten CuWS‐Nanoschichten wurden als Elektrode in einem Festkörpersuperkondensator eingesetzt.
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abstractAs the properties of ultrathin two‐dimensional (2D) crystals are strongly related to their electronic structures, more and more attempts were carried out to tune their electronic structures to meet the high standards for the construction of next‐generation smart electronics. Herein, for the first time, we show that the conductive nature of layered ternary chalcogenide with formula of CuWS can be switched from semiconducting to metallic by hydrogen incorporation, accompanied by a high increase in electrical conductivity. In detail, the room‐temperature electrical conductivity of hydrogenated‐CuWS nanosheet film was almost 10 times higher than that of pristine bulk sample with a value of about 2.9×10 S m, which is among the best values for conductive 2D nanosheets. In addition, the metallicity in the hydrogenated‐CuWS is robust and can be retained under high‐temperature treatment. The fabricated all‐solid‐state flexible supercapacitor based on the hydrogenated‐CuWS nanosheet film shows promising electrochemical performances with capacitance of 583.3 F cm at a current density of 0.31 A cm. This work not only offers a prototype material for the study of electronic structure regulation in 2D crystals, but also paves the way in searching for highly conductive electrodes. : Das Leitfähigkeitsverhalten des schichtförmigen ternären Chalkogenids CuWS kann durch die Einlagerung von Wasserstoff von halbleitend zu metallisch geschaltet werden, einhergehend mit einem starken Anstieg der Leitfähigkeit. Die metallischen hydrierten CuWS‐Nanoschichten wurden als Elektrode in einem Festkörpersuperkondensator eingesetzt.
doi10.1002/ange.201600029
pages5827-5832
date2016-05-04