High-Capacitance Pseudocapacitors from Li<sup>+</sup> Ion Intercalation in Nonporous, Electrically Conductive 2D Coordination Polymers
نویسندگان
چکیده
Electrochemical capacitors (ECs) have emerged as reliable and fast-charging electrochemical energy storage devices that offer high power densities. Their use is still limited, nevertheless, by their relatively low density. Because specific surface area electrical conductivity are widely seen key metrics for improving the density overall performance of ECs, materials excellent conductivities but otherwise nonporous, such coordination polymers (CPs), often overlooked. Here, we report a new nonporous CP, Ni3(benzenehexathiolate) (Ni3BHT), which exhibits over 500 S/m. When used an electrode, Ni3BHT delivers capacitances 245 F/g 426 F/cm3 in nonaqueous electrolytes. Structural studies relate favorable to pseudocapacitive intercalation Li+ ions between 2D layers Ni3BHT, charge-storage mechanism has thus far been documented only inorganic TiO2, Nb2O5, MXenes. This first demonstration ion CPs, class comprising thousands members with distinct structures compositions, provides important motivation exploring this vast family nontraditional, high-energy pseudocapacitors.
منابع مشابه
Computational screening of structural and compositional factors for electrically conductive coordination polymers.
The combination of organic and inorganic chemical building blocks to form metal-organic frameworks (MOFs) offers opportunities for producing functional materials suitable for energy generation, storage and conversion. However, such applications rely on robust electron transport and the design of conductive hybrid materials is still in its infancy. Here we apply density functional theory to asse...
متن کاملElectrically conductive polymers and composites for biomedical applications
Electrically conductive polymeric materials have recently attracted considerable interest from academic and industrial researchers to explore their potential in biomedical applications such as in biosensors, drug delivery systems, biomedical implants and tissue engineering. Conventional conductive homopolymers such as polypyrrole and PEDOT show promising conductivity for these applications, how...
متن کاملDevelopment of Ion-Conductive and Vapoluminescent Porous Coordination Polymers Composed of Ruthenium(II) Metalloligand.
We synthesized two new porous coordination polymers (PCPs) {Ln7(OH)5[Ru(dcbpy)3]4·4nH2O} (Ln7-Ru4; Ln = Ce, Nd) composed of the luminescent ruthenium(II) metalloligand [Ru(4,4'-dcbpy)3]4- ([4Ru]; 4,4'-dcbpy = 4,4'-dicarboxy-2,2'-bipyridine) and lanthanide ions Ln3+ (Ln = Ce, Nd). These two PCPs Ln7-Ru4 are isomorphous with the previously reported PCP La7-Ru4, and the lattice constants (a, c, an...
متن کاملElectrically Conductive Adhesives
Electrically conductive adhesives are being used in electronic packaging for several decades. A brief review of the dynamic development of conductive adhesives under the influence of the miniaturization, the adaptation of environmental friendly manufacturing processes is presented. With respect to the importance of isotropically conductive adhesives (ICA), a new contact model to analyze the pri...
متن کاملFlexible and conductive MXene films and nanocomposites with high capacitance.
MXenes, a new family of 2D materials, combine hydrophilic surfaces with metallic conductivity. Delamination of MXene produces single-layer nanosheets with thickness of about a nanometer and lateral size of the order of micrometers. The high aspect ratio of delaminated MXene renders it promising nanofiller in multifunctional polymer nanocomposites. Herein, Ti3C2T(x) MXene was mixed with either a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2021
ISSN: ['0002-7863', '1520-5126', '1943-2984']
DOI: https://doi.org/10.1021/jacs.0c10849