Multielectron‐Transfer‐based Rechargeable Energy Storage of Two‐Dimensional Coordination Frameworks with Non‐Innocent Ligands. Issue 29 (28th May 2018)

• Record Type: Journal Article
• Authors: Wada, Keisuke; Sakaushi, Ken; Sasaki, Sono; Nishihara, Hiroshi
• Is Part Of: Angewandte Chemie international edition. Volume 57:Issue 29(2018)
• Page Start: 8886
• Page End: 8890
• Publication Date: 2018-05-28
• Subjects: ambipolarity -- energy storage -- layered compounds -- metal–organic frameworks -- redox chemistry; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201802521
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The metallically conductive bis(diimino)nickel framework (NiDI), an emerging class of metal–organic framework (MOF) analogues consisting of two‐dimensional (2D) coordination networks, was found to have an energy storage principle that uses both cation and anion insertion. This principle gives high energy led by a multielectron transfer reaction: Its specific capacity is one of the highest among MOF‐based cathode materials in rechargeable energy storage devices, with stable cycling performance up to 300 cycles. This mechanism was studied by a wide spectrum of electrochemical techniques combined with density‐functional calculations. This work shows that a rationally designed material system of conductive 2D coordination networks can be promising electrode materials for many types of energy devices. Abstract : Veni, NiDI, vici : The metallically conductive bis(diimino)nickel framework (NiDI), a metal–organic framework (MOF) analogue consisting of two‐dimensional coordination networks, was applied as a cathode material for a rechargeable energy storage device. NiDI has an energy storage principle that uses both anion and cation insertion, resulting in high specific capacity among MOF families.