Conductive Ni3(HITP)2 MOFs thin films for flexible transparent supercapacitors with high rate capability

Zhao, Weiwei; Chen, Tiantian; Wang, Weikang; Jin, Beibei; Peng, Jiali; Bi, Shuaihang; Jiang, Mengyue; Liu, Shujuan; Zhao, Qiang; Huang, Wei

doi:10.1016/j.scib.2020.06.027

Cited by 48 publications

(38 citation statements)

References 53 publications

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“…Huang et al fabricated a conductive Ni 3 HITP 2 film on an ITO/polyethylene terephthalate (PET) substrate using gas-liquid interfacial synthesis and used it as the capacitor electrode for a flexible transparent supercapacitor. [46] The Ni 3 HITP 2 electrode has an excellent photoelectric ). Reproduced with permission.…”

Section: Supercapacitorsmentioning

confidence: 99%

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Recent Progress on Conductive Metal‐Organic Framework Films

Wang

Sun

et al. 2021

Adv Materials Inter

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Because of their outstanding structural, chemical, and functional diversity, metal‐organic frameworks (MOFs) have brought about worldwide interest over the last 2 decades, which have been utilized in a wide range of applications in the fields of gas separation, storage, catalysis, and drug delivery. However, among these applications, MOFs are almost used in the form of powder. Due to their fragility and difficulty in preparing large‐area thin film materials, the study of MOF films and their electronic properties is a challenging problem in the research of MOFs. Owing to the low‐energy charge transport mode, most MOF films are essentially insulating, which largely limits their applications in fields where electronic charge transport takes place, such as electronics or electrochemistry. So, the introduction of conductivity into the MOF films opens new avenues for their applications in electrochemical sensing, supercapacitors, batteries, electrocatalysis, and electronic devices and makes the research on and with MOF films very active. Herein, the latest progress of conductive MOF films, including the preparation of MOF films, the design and adjustment strategies for constructing intrinsic and doping conductive MOF films, and their applications are reviewed. In addition, the numerous challenges of conductive MOF films are also elaborated.

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Section: Supercapacitorsmentioning

confidence: 99%

mentioning

confidence: 99%

Recent Progress on Conductive Metal‐Organic Framework Films

Wang

Sun

et al. 2021

Adv Materials Inter

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“…Therefore, highly organized films based on redox metal complexes could be constructed to promote the high exposition of redox sites and charge transport within the film, thus avoiding diffusion limitations. , These electrodes typically present low energy density (by area units) because of low material loading, so they could be suitable for energy storage units in microelectronic, transparent, and flexible devices. In fact, some thin-film electrodes for energy storage based on redox transition-metal complexes and metal oxides have been proposed in previous studies, such as iron-based supramolecular polymers, ruthenium complexes, , nickel complexes, Co 3 O 4 metal oxides, self-assembled zinc oxides, and metal–organic frameworks based on zirconium or nickel . All these studies remark the reduction of the resistance associated with ion diffusion achieved by these films, some exhibiting extra functionalities such as electrochromism, transparency, , or biocompatibility. , Furthermore, the authors point out that the redox processes or pseudocapacitance exhibited by the metal complexes or metal oxides leads to supercapacitors with higher performance ,− and that the porous structure of metal organic frameworks is advantageous for capacitive energy storage. , …”

Section: Introductionmentioning

confidence: 98%

“…39,40 Furthermore, the authors point out that the redox processes or pseudocapacitance exhibited by the metal complexes or metal oxides leads to supercapacitors with higher performance 16,35−39 and that the porous structure of metal organic frameworks is advantageous for capacitive energy storage. 40,41 However, further improvements in the functioning of redox thin-film electrodes are required to maintain the high capacity at high rates. 38,40,41 The understanding of mechanisms at electrochemical interfaces and their impact on device performance could guide the design of interfaces for more efficient energy storage devices.…”

Section: ■ Introductionmentioning

confidence: 99%

“…40,41 However, further improvements in the functioning of redox thin-film electrodes are required to maintain the high capacity at high rates. 38,40,41 The understanding of mechanisms at electrochemical interfaces and their impact on device performance could guide the design of interfaces for more efficient energy storage devices. 1,42 It could be performed through a combination of experimental characterization and mathematical modeling along with computer simulations, which is challenging because of the different time and length scales of interfacial processes.…”

Section: ■ Introductionmentioning

confidence: 99%

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Understanding the Electrochemistry of Ruthenium Complex Thin Films to Guide the Design of Improved Energy Storage Electrodes

Mendoza

Winnischofer

2021

J. Phys. Chem. C

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Materials with fast charge transfer processes across electrochemical interfaces could exhibit a pseudocapacitive behavior, which is promising to achieve both high power and high energy density in energy storage devices. Therefore, the design of electrodes with highly exposed electroactive species and improved charge transport should lead to pseudocapacitive electrodes with high capacity at high rates. Herein, redox thin-film electrodes based on amphiphilic tri-ruthenium clusters are constructed and evaluated as energy storage electrodes. Cyclic voltammetry results are interpreted with the aid of a mathematical model, which describes the electrochemical response of layered films considering the stability of molecules and the charge transfer within the film. It is found that the interactions between tri-ruthenium cluster molecules within the film and the relatively fast electron transfer at the substrate/film interface lead to a wide redox peak with capacitive characteristics, achieving a specific capacitance of 204 F g–1 (1.02 mF cm2) for the electrode with 18 monolayers. However, the efficiency at high rates of thicker electrodes should be improved, and the model suggests that electron transfer at the substrate/film interface and the charge transport within the film are key factors to improving the energy storage efficiency at high rates in film electrodes.

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Flexible Transparent Supercapacitors: Materials and Devices

Zhao

Jiang

Wang

et al. 2020

Adv Funct Materials

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166

124

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The progressive development of flexible transparent portable electronic devices is in urgent need of matching power sources. Flexible transparent supercapacitors (FTSCs) are the core resources due to their high optical transmittance, endurable mechanical flexibility, excellent electrochemical performance, and facilely accessible device configuration. This review organizes the rational design of nanostructured electrode materials toward FTSCs. First, the structure, mechanism, and property of FTSCs are introduced. Then, the design principles of diverse electrode materials are discussed to achieve flexible transparent conductive electrodes (FTCEs) with different figure of merits (both electrical FoMe and capacitive FoMc), mechanical strength, and environmental stability. Following the achievements in multifunctional FTSCs focusing on film‐supercapacitors, micro‐supercapacitors, electrochromic supercapacitors, photo‐supercapacitors, and battery‐like supercapacitors are also highlighted. Finally, the current challenges and future perspectives on viable materials in the construction of FTSCs to power portable electronics are outlined.

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Conductive Ni3(HITP)2 MOFs thin films for flexible transparent supercapacitors with high rate capability

Cited by 48 publications

References 53 publications

Recent Progress on Conductive Metal‐Organic Framework Films

Recent Progress on Conductive Metal‐Organic Framework Films

Understanding the Electrochemistry of Ruthenium Complex Thin Films to Guide the Design of Improved Energy Storage Electrodes

Flexible Transparent Supercapacitors: Materials and Devices

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