1
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Yu Z, Wang R, Tang H, Zheng D, Yu J. 3,6-Dimethoxythieno[3,2-b]thiophene-Based Bifunctional Electrodes for High-Performance Electrochromic Supercapacitors Prepared by One-Step Electrodeposition. Polymers (Basel) 2024; 16:2313. [PMID: 39204533 PMCID: PMC11359075 DOI: 10.3390/polym16162313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 08/11/2024] [Accepted: 08/14/2024] [Indexed: 09/04/2024] Open
Abstract
An integrated visual energy system consisting of conjugated polymer electrodes is promising for combining electrochromism with energy storage. In this work, we obtained copolymer bifunctional electrodes poly(3,6-dimethoxythieno[3,2-b]thiophene-co-2,3-dihydrothieno[3,4-b][1,4]dioxin-3-ylmethanol)(P(TT-OMe-co-EDTM)) by one-step electrochemical copolymerization, which exhibits favorable electrochromic and capacitive energy storage properties. Because of the synergistic effect of PTT-OMe and PEDTM, the prepared copolymers show better flexibility. Moreover, the morphology and electrochemical properties of the copolymers could be adjusted by depositing different molar ratios of 3,6-dimethoxythieno[3,2-b]thiophene (TT-OMe) and 2,3-dihydrothieno[3,4-b][1,4] dioxin-3-ylmethanol (EDTM). The P(TT-OMe-co-EDTM) electrodes realized a high specific capacitance (190 F/g at 5 mV/s) and recognizable color conversion. This work provides a novel and simple way to synergistically improve electrochromic and energy storage properties and develop thiophene-based conducting polymers for electrochromic energy storage devices.
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Affiliation(s)
| | | | | | - Ding Zheng
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; (Z.Y.); (R.W.); (H.T.)
| | - Junsheng Yu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; (Z.Y.); (R.W.); (H.T.)
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2
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Yang Y, Chen B, Zhang Y, Peng H, Chen J, Chen S. Copper Vanadium Oxide Yolk-Shell Microspheres with Excellent Capacitance and Cycling Performance for Electrochromic Supercapacitor. ACS APPLIED MATERIALS & INTERFACES 2024; 16:42502-42512. [PMID: 39096487 DOI: 10.1021/acsami.4c09004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/05/2024]
Abstract
Vanadium pentoxide (V2O5) is considered a promising material for electrochromic supercapacitors due to its rich color transitions and excellent electrochemical capacity. However, V2O5 exhibits low electrical conductivity, and its volume changes dramatically during charge-discharge cycles, leading to structural collapse and poor long-term cyclability. These issues have hindered the development and application of V2O5. In this study, copper vanadium oxide yolk-shell microspheres (CVO) were synthesized through a one-step solvent heat treatment with an annealing process. With the doping of copper element, the capacitance, conductivity, and cyclic stability of CVO microspheres were significantly enhanced. Subsequently, the sphere-wire network structure was formed by blending Na2V6O16·3H2O nanowires (NVO), resulting in the formation of CVO/NVO composites. The three-dimensional sphere-wire network efficiently facilitates the acquisition of additional redox sites and strengthens the material-to-substrate bonding. Under the combined influence of these favorable factors, CVO/NVO achieved a high specific capacitance of 39.2 mF cm-2, with a capacitance retention of 84% after 7500 cycles at a current density of 0.7 mA cm-2. The fully inorganic solid-state electrochromic supercapacitor (ECSC), assembled on the basis of CVO/NVO, demonstrates a vivid and clearly distinguishable color change (ΔE* = 37). Even more impressive is the energy storage capacity (18.4 mF·cm-2) and the cycling stability (up to 89% retention after 10,000 cycles) exhibited by the devices. These key performances are superior to those of most of the previously reported V2O5-based ECSCs, opening a promising avenue for the development of V2O5-based electrochromic energy storage devices.
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Affiliation(s)
- Yuanhaobo Yang
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Biao Chen
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Yongbo Zhang
- Down-Hole Service Company of Sinopec Shengli Petroleum Engineering Co., Ltd., Dongying 257066, China
| | - Hongchao Peng
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Jia Chen
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Sheng Chen
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
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3
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Bansal L, Sahu B, Rath DK, Ahlawat N, Ghosh T, Kandpal S, Kumar R. Stoichiometrically Optimized Electrochromic Complex [V 2O 2+ξ(OH) 3-ξ] Based Electrode: Prototype Supercapacitor with Multicolor Indicator. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2312215. [PMID: 38497820 DOI: 10.1002/smll.202312215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/29/2024] [Indexed: 03/19/2024]
Abstract
The systematic structure modification of metal oxides is becoming more attractive, and effective strategies for structural tunning are highly desirable for improving their practical color-modulating energy storage performances. Here, the ability of a stoichiometrically tuned oxide-hydroxide complex of porous vanadium oxide, namely [V2O2+ξ(OH)3-ξ]ξ = 0:3 for multifunctional electrochromic supercapacitor application is demonstrated. Theoretically, the pre-optimized oxide complex is synthesized using a simple wet chemical etching technique in its optimized stoichiometry [V2O2+ξ(OH)3-ξ] with ξ = 0, providing more electroactive surface sites. The multifunctional electrode shows a high charge storage property of 610 Fg-1 at 1A g-1, as well as good electrochromic properties with high color contrast of 70% and 50% at 428 and 640 nm wavelengths, faster switching, and high coloration efficiency. When assembled in a solid-state symmetric electrochromic supercapacitor device, it exhibits an ultrahigh power density of 1066 mWcm-2, high energy density of 246 mWhcm-2, and high specific capacitance of 290 mFcm-2 at 0.2 mAcm-2. A prepared prototype device displays red when fully charged, green when half charged, and blue when fully discharged. A clear evidence of optimizing the multifunctional performance of electrochromic supercapacitor by stoichiometrical tuning is presented along with demonstrating a device prototype of a 25 cm2 large device for real-life applications.
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Affiliation(s)
- Love Bansal
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol, 453552, India
| | - Bhumika Sahu
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol, 453552, India
| | - Deb Kumar Rath
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol, 453552, India
| | - Nikita Ahlawat
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol, 453552, India
| | - Tanushree Ghosh
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol, 453552, India
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, Ontario, M5S 3G8, Canada
| | - Suchita Kandpal
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol, 453552, India
- Department of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Rajesh Kumar
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol, 453552, India
- Centre for Advanced Electronics, Indian Institute of Technology Indore, Simrol, 453552, India
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4
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Pradhan L, Kamila S, Padhy G, Das DP, Jena BK. Emerging Vanadium-Doped Cobalt Chloride Carbonate Hydroxide for Flexible Electrochromic Micro-Supercapacitor: Charged-State Prediction from RGB Input by ANN Model. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401238. [PMID: 38602230 DOI: 10.1002/smll.202401238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/25/2024] [Indexed: 04/12/2024]
Abstract
Multifunctional devices integrated with electrochromic and supercapacitance properties are fascinating because of their extensive usage in modern electronic applications. In this work, vanadium-doped cobalt chloride carbonate hydroxide hydrate nanostructures (V-C3H NSs) are successfully synthesized and show unique electrochromic and supercapacitor properties. The V-C3H NSs material exhibits a high specific capacitance of 1219.9 F g-1 at 1 mV s-1 with a capacitance retention of 100% over 30 000 CV cycles. The electrochromic performance of the V-C3H NSs material is confirmed through in situ spectroelectrochemical measurements, where the switching time, coloration efficiency (CE), and optical modulation (∆T) are found to be 15.7 and 18.8 s, 65.85 cm2 C-1 and 69%, respectively. A coupled multilayer artificial neural network (ANN) model is framed to predict potential and current from red (R), green (G), and blue (B) color values. The optimized V-C3H NSs are used as the active materials in the fabrication of flexible/wearable electrochromic micro-supercapacitor devices (FEMSDs) through a cost-effective mask-assisted vacuum filtration method. The fabricated FEMSD exhibits an areal capacitance of 47.15 mF cm-2 at 1 mV s-1 and offers a maximum areal energy and power density of 104.78 Wh cm-2 and 0.04 mW cm-2, respectively. This material's interesting energy storage and electrochromic properties are promising in multifunctional electrochromic energy storage applications.
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Affiliation(s)
- Lingaraj Pradhan
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Swagatika Kamila
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India
| | - Ganeswara Padhy
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India
| | - Debi Prasad Das
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Bikash Kumar Jena
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, 751013, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, India
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5
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Navya PV, Ganesan K, Neyts EC, Sampath S. Heterocycle- and Amine-Free Electrochromic and Electrofluorochromic Molecules for Energy-Saving See-Through Smart Windows and Displays. Chemistry 2024; 30:e202401647. [PMID: 38747442 DOI: 10.1002/chem.202401647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Indexed: 05/31/2024]
Abstract
Electrochromic (EC) smart windows are an elegant alternative to dusty curtains, blinds, and traditional dimming devices. The EC energy storage smart windows and displays received remarkable attention in the optoelectronic industry as they hold promise for high energy efficiency, low power consumption, reversibility, and swift response to stimuli. However, achieving these properties remains challenging. Moreover, most EC molecules do not exhibit electrofluorochromism, which is highly essential for smart displays because its EC property can modulate the solar heat entering the building, and its electrofluorochromic (EFC) aspects can create lighting during the night. In this work, a structure-property relationship is utilized to develop new electrochromes that can store the injected charge, and these molecules indeed exhibit electrofluorochromism. The compounds are synthesized from tetrabenzofluorene with two aromatic acceptor units, and avoids the use of widely studied heterocycles and amine derivatives. The electrochromes switches from yellow to dark hue in solution, solid, and gel state. The compounds display exceptional electrochemical stability and reversibility in 1000 cycles and capacity retention of 93-100 % in 300 charging-discharging cycles. The proof-of-concept device fabrication of the self-dimming EC smart window presented here demonstrates that it can furnish visual comfort, modulate transmitted light and glare, and reduce energy usage.
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Affiliation(s)
- Panichiyil V Navya
- Soft Functional Hybrid Materials Lab, Department of Materials Science, School of Technology, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu, 610005, India
| | - Krithika Ganesan
- MOSAIC Research Group, University of Antwerp, Universiteitsplein 1, Wilrijk, 2610, Belgium
| | - Erik C Neyts
- MOSAIC Research Group, University of Antwerp, Universiteitsplein 1, Wilrijk, 2610, Belgium
| | - Srinivasan Sampath
- Soft Functional Hybrid Materials Lab, Department of Materials Science, School of Technology, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu, 610005, India
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6
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Li J, Yu H, Lv Y, Cai Z, Shen Y, Ruhlmann L, Gan L, Liu M. Electrode materials for electrochromic supercapacitors. NANOTECHNOLOGY 2024; 35:152001. [PMID: 38150723 DOI: 10.1088/1361-6528/ad18e2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 12/27/2023] [Indexed: 12/29/2023]
Abstract
Smart energy storage systems, such as electrochromic supercapacitor (ECSC) integrated technology, have drawn a lot of attention recently, and numerous developments have been made owing to their reliable performance. Developing novel electrode materials for ECSCs that embed two different technologies in a material is an exciting and emerging field of research. To date, the research into ECSC electrode materials has been ongoing with excellent efforts, which need to be systematically reviewed so that they can be used to develop more efficient ECSCs. This mini-review provides a general composition, main evaluation parameters and future perspectives for electrode materials of ECSCs as well as a brief overview of the published reports on ECSCs and performance statistics on the existing literature in this field.
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Affiliation(s)
- Jianhang Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
- Hangzhou Plastics Industry Co., Ltd, Hangzhou, People's Republic of China
| | - Haixin Yu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Yaokang Lv
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Zhiwei Cai
- Zhejiang Institute for Food and Drug Control, Key Laboratory of Drug Contacting Materials Quality Control of Zhejiang Province, Hangzhou, People's Republic of China
| | - Yimin Shen
- Shaoxing Jinye Environmental Protection Technology Co., Ltd, No. 173, Zhenghai Road, Binhai Industrial Zone, Keqiao District, Shaoxing, 312073, People's Republic of China
| | - Laurent Ruhlmann
- Institut de Chimie (UMR au CNRS n°7177), Université de Strasbourg, 4 rue Blaise Pascal CS 90032, F-67081 Strasbourg Cedex, France
| | - Lihua Gan
- Hangzhou Plastics Industry Co., Ltd, Hangzhou, People's Republic of China
| | - Mingxian Liu
- School of Chemical Science and Engineering, Tongji University, Shanghai, People's Republic of China
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7
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Yu KS, Kim SY, Moon HC. High-Voltage Pulse-Assisted Operation of Single-Layer Electrochromic Systems for High Performance and Reliability. ACS APPLIED MATERIALS & INTERFACES 2023; 15:45315-45321. [PMID: 37700484 DOI: 10.1021/acsami.3c10467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
A single-layer electrochromic device (SL-ECD) based on ionic conductors containing EC chromophores provides a very simple platform that can be readily fabricated by sandwiching the EC layer between two electrodes. The operation of SL-ECDs is governed by the diffusion of redox species due to their SL structure, which causes a relatively slow dynamic response. In this study, we propose an effective high-voltage pulse injection strategy to improve the performance of SL-ECDs. Applying a programmed voltage wave composed of DC and high-voltage pulses promotes coloration/bleaching switching without degrading device stability, which is more advantageous than applying high DC voltages. We modified the input voltage profile by considering fundamental parameters, such as the amplitude and duty ratio of additional voltage pulses. The coloration and bleaching dynamic responses with the optimized voltage wave are ∼62 and ∼20% faster, respectively, compared with those with the simple DC input. Furthermore, the additionally injected pulse aids in increasing the coloration efficiency from ∼95.3 to ∼168.6 cm2 C-1. Another notable feature of this system is that the device operates stably when a programmed voltage wave is used. These results indicate that the concept of high-voltage pulse-assisted operation of SL-ECDs is a straightforward but effective method for improving device performance without changing the EC chromophore or device structure.
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Affiliation(s)
- Kyeong Su Yu
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - Seon Yeong Kim
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - Hong Chul Moon
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea
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8
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Khaldi O, Ferhi H, Larbi T, Jomni F, Ben Younes R. Dielectric response of high- κ hafnium oxide under finite electric field: nonlinearities from ab initio and experimental points of view. Phys Chem Chem Phys 2023; 25:22310-22318. [PMID: 37578192 DOI: 10.1039/d3cp01552a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Herein, we report on the dielectric-voltage nonlinearities under a constant electric field in metal insulator metal (MIM) capacitor-based hafnium oxide (HfO2) with respect to the frequency range. Via the Schottky emission mechanism obtained from the current-voltage characteristic (I-V), we calculated the optical dielectric constant εr,opt for different external DC bias values. The extracted εr,opt revealed a quadratic dependence on the applied external field. This confirmed that such dependence is a common feature of high-κ oxides in the low and high frequency ranges. The results were correlated with the ab initio calculations using the finite field (FF) method as implemented in the CRYSTAL 17 code. Good agreement between the results from the FF method, I-V plots, as well as the UV-visible spectrometry is observed. To assess any change in the dielectric constant upon the application of an external electric field, several parameters such as exchange-correlation functional, basis sets (BSs), as well as supercell expansion factor (N) were tested. The corresponding parameters have a great influence on the macroscopic electron density and voltage along the field direction and thus on the optical response. For N > 2 and rich basis sets, the hybrid functional B3LYP revealed good agreement with the experimental results as compared to other Hamiltonian's forms such as LDA, PW-GGA and HF.
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Affiliation(s)
- Othmen Khaldi
- University of Tunis El Manar, Laboratory of Materials, Organization and Properties, LMOP(LR99ES17), 2092, Tunis, Tunisia.
| | - Hanen Ferhi
- University of Gafsa, Laboratory of Technology, Energy and Innovative Materials, Department of Physics, Faculty of Sciences of Gafsa, 2112, Gafsa, Tunisia
| | - Tarek Larbi
- University of Tunis El Manar, Laboratory of Nanomaterials, Nanotechnology and Energy, 2092, Tunis, Tunisia
| | - Fethi Jomni
- University of Tunis El Manar, Laboratory of Materials, Organization and Properties, LMOP(LR99ES17), 2092, Tunis, Tunisia.
| | - Rached Ben Younes
- University of Gafsa, Laboratory of Technology, Energy and Innovative Materials, Department of Physics, Faculty of Sciences of Gafsa, 2112, Gafsa, Tunisia
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9
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Ganesha MK, Mondal I, Singh AK, Kulkarni GU. Fabrication of Large-Area, Affordable Dual-Function Electrochromic Smart Windows by Using a Hybrid Electrode Coated with an Oxygen-Deficient Tungsten Oxide Ultrathin Porous Film. ACS APPLIED MATERIALS & INTERFACES 2023; 15:19111-19120. [PMID: 37016773 DOI: 10.1021/acsami.2c22638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Electrochromic (EC) devices are not commercialized extensively owing to their high cost. The best large-area devices in the market suffer from not reaching a distinct dark-colored state. These devices appear more like a blue tinted glass. While a better performance demands the use of appropriate components, the cost-effectiveness of such components is crucial for commercialization. Specifically, the utilization of cost-effective electrodes, thin WO3 coatings, and inexpensive electrolytes are essential for reducing the cost of EC devices. Here, we report a high-performing porous WO3 thin film (∼130 nm) achieved by optimizing the DC sputtering process parameters. This way, an affordable dual-function EC energy-storage device was fabricated, showing 84% transmittance modulation and a high power density of 3036 mW/m2, thus functioning simultaneously as a transparency switching energy-storage device. With a large-area (900 cm2) device, we have demonstrated that the need for expensive ITO electrodes and Li+ ion-based electrolytes can be eliminated by using a hybrid electrode (ITO/Al-mesh) and multivalent Al3+ ion-based electrolytes while not compromising the device performance. The findings of this study may revolutionize the EC device industry and their commercialization owing to inexpensive ingredients and scalable processing.
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Affiliation(s)
- Mukhesh K Ganesha
- Centre for Nano and Soft Matter Sciences, Bangalore 562162, India
- Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Indrajit Mondal
- Chemistry & Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Ashutosh K Singh
- Centre for Nano and Soft Matter Sciences, Bangalore 562162, India
- Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Giridhar U Kulkarni
- Chemistry & Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
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10
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Foldable and wearable supercapacitors for powering healthcare monitoring applications with improved performance based on hierarchically co-assembled CoO/NiCo networks. J Colloid Interface Sci 2023; 634:715-729. [PMID: 36563428 DOI: 10.1016/j.jcis.2022.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/17/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022]
Abstract
Small-scale and high-performance energy storage devices have drawn tremendous attention with their portable, lightweight, and multi-functionalized features. Here, we present a foldable supercapacitor with affordable flexibility by adopting a developed design and electrode material system as a way to extend usability. Notably, to resolve the limited energy density of conventional capacitors, we successfully synthesize the CoO/NiCo-layered double hydroxide (LDH) core-shell nanostructure on Ni framework as a cathode material. Further, glucose-based activated carbon (GBAC) is utilized for the anode. The CoO/NiCo-LDH electrodes exhibited a high specific capacitance of ∼284.8 mAh g-1 at 1 A g-1, and GBAC delivers a high specific capacitance of ∼166 F g-1 at 1 A g-1. In the following, the combinatorial integration of these materials enabled the asymmetric supercapacitor (ASC) to increase the energy density by enhancing the capacitance and the voltage window, in which a hydrogel-based electrolyte was facilitated for the foldable and wearable capability. The energy density of the ASC device was ∼24.9 Wh kg-1 at a power density of ∼779.5 W kg-1 with a voltage window of ∼1.6 V. As demonstrated, a self-powered energy source was demonstrated by a serially connected multi-ASC device with a help of a commercial solar cell, which was employed for powering wearable healthcare monitoring devices, including personal alarms for patients and recording the human body's electrical signals. The present work offers a viable approach to preparing potential candidates for high-performance electrodes of supercapacitors with deformable configurations to extend the powering capability of other electronic devices with physical functionalities used in wearable electronics.
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11
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Gaur A, Pundir V, Maruyama T, Bera C, Bagchi V. Electronic redistribution over the active sites of NiWO 4-NiO induces collegial enhancement in hydrogen evolution reaction in alkaline medium. J Colloid Interface Sci 2023; 641:82-90. [PMID: 36924548 DOI: 10.1016/j.jcis.2023.02.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 01/24/2023] [Accepted: 02/27/2023] [Indexed: 03/07/2023]
Abstract
The activity-enhancement of a new-generation catalyst focuses on the collegial approach among specific solids which exploit the mutual coactions of these materials for HER applications. Strategic manipulation of these solid interfaces typically reveals unique electronic states different from their pure phases, thus, providing a potential passage to create catalysts with excellent activity and stability. Herein, the formation of the NiWO4-NiO interface has been designed and synthesized via a three-step method. This strategy enhances the chance of the formation of abundant heterointerfaces due to the fine distribution of NiWO4 nanoparticles over Ni(OH)2 sheets. NiWO4-NiO has superior HER activity in an alkaline (1 M KOH) electrolyte with modest overpotentials of 68 mV at 10 mA cm-2 current density. The catalyst is highly stable in an alkaline medium and negligible change was observed in the current density even after 100 h of continuous operation. This study explores a unique method for high-performance hydrogen generation by constructing transition metal-oxides heterojunction. The XPS studies reveal an electronic redistribution driven by charge transfer through the NiWO4-NiO interface. The density functional theory (DFT) calculations show that the NiWO4-NiO exhibits a Pt-like activity with the hydrogen Gibbs free energy (ΔGH*) value of 0.06 eV compared to the Pt(ΔGH* = -0.02 eV).
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Affiliation(s)
- Ashish Gaur
- Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Vikas Pundir
- Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Takahiro Maruyama
- Department of Applied Chemistry, Meijo University, 1-501 Shiogamaguchi, Tempaku, Nagoya 468-8502, Japan
| | - Chandan Bera
- Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Vivek Bagchi
- Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab 140306, India.
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12
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Lynch PJ, Tripathi M, Amorim Graf A, Ogilvie SP, Large MJ, Salvage J, Dalton AB. Mid-Infrared Electrochromics Enabled by Intraband Modulation in Carbon Nanotube Networks. ACS APPLIED MATERIALS & INTERFACES 2023; 15:11225-11233. [PMID: 36800377 PMCID: PMC9982807 DOI: 10.1021/acsami.2c19758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Tuneable infrared properties, such as transparency and emissivity, are highly desirable for a range of applications, including thermal windows and emissive cooling. Here, we demonstrate the use of carbon nanotube networks spray-deposited onto an ionic liquid-infused membrane to fabricate devices with electrochromic modulation in the mid-infrared spectrum, facilitating control of emissivity and apparent temperature. Such modulation is enabled by intraband transitions in unsorted single-walled carbon nanotube networks, allowing the use of scalable nanotube inks for printed devices. These devices are optimized by varying film thickness and sheet resistance, demonstrating the emissivity modulation (from ∼0.5 to ∼0.2). These devices and the understanding thereof open the door to selection criteria for infrared electrochromic materials based on the relationship between band structure, electrochemistry, and optothermal properties to enable the development of solution-processable large-area coatings for widespread thermal management applications.
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Affiliation(s)
- Peter J. Lynch
- Department
of Physics and Astronomy, University of
Sussex, Brighton BN1 9RH, U.K.
| | - Manoj Tripathi
- Department
of Physics and Astronomy, University of
Sussex, Brighton BN1 9RH, U.K.
| | - Aline Amorim Graf
- Department
of Physics and Astronomy, University of
Sussex, Brighton BN1 9RH, U.K.
| | - Sean P. Ogilvie
- Department
of Physics and Astronomy, University of
Sussex, Brighton BN1 9RH, U.K.
| | - Matthew J. Large
- Department
of Physics and Astronomy, University of
Sussex, Brighton BN1 9RH, U.K.
| | - Jonathan Salvage
- School
of Pharmacy and Biomolecular
Science, University of Brighton, Brighton BN2 4GJ, U.K.
| | - Alan B. Dalton
- Department
of Physics and Astronomy, University of
Sussex, Brighton BN1 9RH, U.K.
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13
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Pathak DK, Moon HC. Recent progress in electrochromic energy storage materials and devices: a minireview. MATERIALS HORIZONS 2022; 9:2949-2975. [PMID: 36239257 DOI: 10.1039/d2mh00845a] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Integration of several functionalities into one isolated electrochemical body is necessary to realize compact and tiny smart electronics. Recently, two different technologies, electrochromic (EC) materials and energy storage, were combined to create a single system that supports and drives both functions simultaneously. In EC energy storage devices, the characteristic feature of EC materials, their optical modulation depending on the applied voltage, is used to visually identify the stored energy level in real time. Moreover, combining energy-harvesting and EC storage systems by sharing one electrode facilitates the realization of further compact multifunction systems. In this minireview, we highlight recent groundbreaking achievements in EC multifunction systems where the stored energy levels can be visualized using the color of the device.
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Affiliation(s)
- Devesh K Pathak
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea.
| | - Hong Chul Moon
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea.
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14
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Liu Q, Yang L, Ling W, Guo B, Chen L, Wang J, Zhang J, Wang W, Mo F. Organic electrochromic energy storage materials and device design. Front Chem 2022; 10:1001425. [PMID: 36212068 PMCID: PMC9538391 DOI: 10.3389/fchem.2022.1001425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 08/09/2022] [Indexed: 12/02/2022] Open
Abstract
While not affecting electrochemical performance of energy storage devices, integrating multi-functional properties such as electrochromic functions into energy storage devices can effectively promote the development of multifunctional devices. Compared with inorganic electrochromic materials, organic materials possess the significant advantages of facile preparation, low cost, and large color contrast. Specifically, most polymer materials show excellent electrochemical properties, which can be widely used in the design and development of energy storage devices. In this article, we focus on the application of organic electrochromic materials in energy storage devices. The working mechanisms, electrochemical performance of different types of organics as well as the shortcomings of organic electrochromic materials in related devices are discussed in detail.
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Affiliation(s)
- Qingjiang Liu
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, China
| | - Liangliang Yang
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, China
| | - Wei Ling
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, China
| | - Binbin Guo
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, China
| | - Lina Chen
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, China
| | - Jiaqi Wang
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, China
| | - Jiaolong Zhang
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, China
- *Correspondence: Jiaolong Zhang, ; Funian Mo,
| | - Wenhui Wang
- Department of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, China
| | - Funian Mo
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, China
- *Correspondence: Jiaolong Zhang, ; Funian Mo,
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15
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Zhao F, He H, Cheng Z, Tang Y, Li G, Xu G, Liu Y, Han G. Improving electrochromic performance of porous nickel oxide electrode via Cu doping. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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16
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Guo X, Chen J, Eh ALS, Poh WC, Jiang F, Jiang F, Chen J, Lee PS. Heat-Insulating Black Electrochromic Device Enabled by Reversible Nickel-Copper Electrodeposition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20237-20246. [PMID: 35467337 DOI: 10.1021/acsami.2c02626] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
An electrochromic device (ECD), which can switch between black and transmissive states under electrical bias, is a promising candidate for smart windows due to its color neutrality and excellent durability. Most of the black ECDs are achieved through a reversible electrodeposition and dissolution mechanism; however, they typically suffer from relatively poor cycling stability and a slow coloration/bleaching time. Herein, we present a heat-insulating black ECD with a gel electrolyte that operates via reversible Ni-Cu electrodeposition and dissolution. With the adoption of a Cu alloying strategy and a compatible gel electrolyte, this two-electrode ECD (5.0 cm × 2.5 cm) can achieve a cycling stability of 1500 cycles with transmittance modulation up to 55.2% in short coloration (6.2 s) and bleaching times (13.2 s) at a wavelength of 550 nm. Additionally, the ECD can be switched from the transparent state (visible light transmittance: 0.566) to the opaque state (visible light transmittance: 0.003) within 1 min, reaching transmittance less than 5% across the visible-near-infrared spectrum (400-2000 nm) to efficiently block solar heat. Besides, in the voltage-off state, the black Ni-Cu alloy film can be sustained for more than 60 min (at room temperature, λ = 550 nm). Under infrared irradiation (170 W/m2) for 30 min, the black ECD blocks up to 35.0% of infrared radiation, which not only effectively prevents the heat transmission for energy management but also finds potential applications for promoting indoor human health and indoor farming.
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Affiliation(s)
- Xiaoyu Guo
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Jingwei Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE), Nanomaterials for Energy and Energy Water Nexus (NEW), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore
| | - Alice Lee-Sie Eh
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE), Nanomaterials for Energy and Energy Water Nexus (NEW), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore
| | - Wei Church Poh
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Fan Jiang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Feng Jiang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Juntong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Pooi See Lee
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE), Nanomaterials for Energy and Energy Water Nexus (NEW), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore
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17
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Chen X, Zhang H, Li W, Xiao Y, Zhang X, Li Y. CaF 2: A novel electrolyte for all solid-state electrochromic devices. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2022; 10:100164. [PMID: 36159735 PMCID: PMC9488006 DOI: 10.1016/j.ese.2022.100164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 06/16/2023]
Abstract
The energy consumption in building ventilation, air, and heating conditioning systems, accounts for about 25% of the overall energy consumption in modern society. Therefore, cutting carbon emissions and reducing energy consumption is a growing priority in building construction. Electrochromic devices (ECDs) are considered to be a highly promising energy-saving technology, due to their simple structure, active control, and low energy input characteristics. At present, H+, OH- and Li+ are the main electrolyte ions used for ECDs. However, H+ and OH- based electrolytes have a high erosive effect on the material surface and have a relatively short lifetime. Li+-based electrolytes are limited due to their high cost and safety concerns. In this study, inspired by prior research on Ca2+ batteries and supercapacitors, CaF2 films were prepared by electron beam evaporation as a Ca2+-based electrolyte layer to construct ECDs. The structure, morphology, and optical properties of CaF2 films were characterized. ECDs with the structure of ITO (indium tin oxide) glass/WO3/CaF2/NiO/ITO show short switching times (22.8 s for the coloring process, 2.8 s for the bleaching process). Additionally, optical modulation of the ECDs is about 38.8% at 750 nm. These findings indicate that Ca2+ based ECDs have the potential to become a competitive and attractive choice for large-scale commercial smart windows.
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Affiliation(s)
- Xi Chen
- Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Hulin Zhang
- Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Wenjie Li
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Yingjun Xiao
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Xiang Zhang
- Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Yao Li
- Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin, 150001, PR China
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18
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Zhan X, Gao F, Zhuang Q, Zhang Y, Dang J. Two-Dimensional Porous Structure of V-Doped NiO with Enhanced Electrochromic Properties. ACS OMEGA 2022; 7:8960-8967. [PMID: 35309426 PMCID: PMC8928156 DOI: 10.1021/acsomega.1c07370] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
In this work, a two-dimensional porous structure of a V-doped NiO film with excellent electrochromic properties on an ITO substrate was synthesized by a hydrothermal method. The influence of V5+ ions on the NiO film was explored by adjusting the amount of V doping, including refining the crystal grains, increasing the specific surface area of the film, and accelerating the diffusion rate of OH- in the film. Compared with the undoped NiO film, a 3 atom % V-doped NiO film comes out with superior electrochromic properties with large optical transmittance modulation (81.9% at 600 nm), fast response times (1.2 and 0.9 s), and excellent cycle stability (90.6%). This work creates innovation direction in the field of intelligent energy-saving window materials with high electrochromic properties.
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Affiliation(s)
- Xuhe Zhan
- National
Innovation Center of High Speed Train (Qingdao), Qingdao 266108, P. R. China
| | - Feiyu Gao
- College
of Materials Science and Engineering, Chongqing
University, Chongqing 400044, P. R. China
| | - Qianyu Zhuang
- National
Innovation (Qingdao) High Speed Train Material Research Institute
Co., Ltd., Qingdao 266109, P. R. China
| | - Yani Zhang
- National
Innovation Center of High Speed Train (Qingdao), Qingdao 266108, P. R. China
| | - Jie Dang
- College
of Materials Science and Engineering, Chongqing
University, Chongqing 400044, P. R. China
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19
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Li B, Dang J, Zhuang Q, Lv Z. Recent Advances in Inorganic Electrochromic Materials from Synthesis to Applications: Critical Review on Functional Chemistry and Structure Engineering. Chem Asian J 2022; 17:e202200022. [PMID: 35191172 DOI: 10.1002/asia.202200022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/19/2022] [Indexed: 11/10/2022]
Abstract
For the assembly of electrochromic devices (ECDs) generally with multilayer structures, supportive components usually are needed to be incorporated with EC materials. The reasonable project and development of ECDs will achieve broad expected applications. In this study, we reviewed several impressive methods to design and fabricate ECDs with high-performance and versatility based on recent frontier research. The first part of the review is centered on the desirability and strengthening mechanism of nanostructured inorganic EC materials. The second part illustrates the recent advances in transparent conductors. We then summarize the demands and means to modify the formation of electrolytes for practicable ECDs. Moreover, efforts to increase the compatibility with the EC layer and ion capacity are delineated. In the end, the application prospects of inorganic ECDs are further explored, which offers a guideline for the industrialization process of ECDs.
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Affiliation(s)
- Borui Li
- National Innovation Center of high speed train, National Innovation center of high speed train, CHINA
| | - Jie Dang
- Chongqing University, College of Materials Science and Engineering, Shapingba Strict 174, 400044, Chongqing, CHINA
| | - Qianyu Zhuang
- National innovation (Qingdao) high speed train material research institute Co. LTD, National innovation (Qingdao) high speed train material research insitute Co. LTD, CHINA
| | - Zepeng Lv
- Chongqing University, College of Materials Science and Engineering, CHINA
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20
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Kandpal S, Ghosh T, Rani C, Tanwar M, Sharma M, Rani S, Pathak DK, Bhatia R, Sameera I, Jayabalan J, Kumar R. Bifunctional Application of Viologen-MoS 2-CNT/Polythiophene Device as Electrochromic Diode and Half-Wave Rectifier. ACS MATERIALS AU 2022; 2:293-300. [PMID: 36855378 PMCID: PMC9888659 DOI: 10.1021/acsmaterialsau.1c00064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A dual purpose solid state electrochromic diode has been fabricated using polythiophene (P3HT) and ethyl Viologen (EV), predoped with multiwalled carbon nanotubes (MWCNTs) and MoS2. The device has been designed by considering two important aspects, first, the complementary redox activity of P3HT and EV and second, the electron holding properties of MoS2 and MWCNTs. The latter is found to enhance the electrochromic performance of the solid state device. On the other hand, the complementary redox nature gives the asymmetric diodic I-V characteristic to the device which has been exploited to use the electrochromic device for rectification application. The MoS2 nanoflower and MWCNTs are synthesized by one-step hydrothermal and pyrolysis techniques and well characterized by scanning electron microscopy (SEM), X-ray analysis (XRD), and Raman spectroscopy. Electrochromic properties of the device have been studied in detail to reveal an improvement in device performance in terms of faster speed and high coloration efficiency and color contrast. In situ bias-dependent Raman spectroscopy has been performed to understand the operation mechanism of the electrochromic diode which reveals (bi-)polaron formation as a result of dynamic doping eventually leading to color change. A half-wave rectifier has been realized from the electrochromic diode which rectifies an AC voltage of frequency 1 Hz or less making it suitable for low frequency operation. The study opens a new possibility to design and fabricate multipurpose frequency selective electrochromic rectifiers.
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Affiliation(s)
- Suchita Kandpal
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Tanushree Ghosh
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Chanchal Rani
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Manushree Tanwar
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Meenu Sharma
- Department
of Physics, Guru Jambheshwar University
of Science & Technology, Hisar-125001, India
| | - Sonam Rani
- Department
of Physics, Guru Jambheshwar University
of Science & Technology, Hisar-125001, India
| | - Devesh K. Pathak
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Ravi Bhatia
- Department
of Physics, Guru Jambheshwar University
of Science & Technology, Hisar-125001, India
| | - I. Sameera
- Department
of Physics, Guru Jambheshwar University
of Science & Technology, Hisar-125001, India
| | - Jesumony Jayabalan
- Homi
Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai-400094, India
| | - Rajesh Kumar
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India,Centre
for Advanced Electronics, Indian Institute
of Technology Indore, Simrol-453552, India,Centre
for Rural Development and Technology, Indian
Institute of Technology Indore, Simrol-453552, India,Centre for
Indian Scientific Knowledge Systems, Indian
Institute of Technology Indore, Simrol-453552, India,
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21
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Chakraborty P, Ahamed ST, Mandal P, Mondal A, Banerjee D. Polypyrrole and a polypyrrole/nickel oxide composite – single-walled carbon nanotube enhanced photocatalytic activity under visible light. NEW J CHEM 2022. [DOI: 10.1039/d2nj02336a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel NiO/PPy/SWCNT composite for removal of organic dyes with an emphasis on the effect of photocatalytic charge carrier transport and photoluminescence properties.
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Affiliation(s)
- Prasenjit Chakraborty
- Department of Physics, Indian Institute of Engineering Science & Technology, Shibpur, Howrah 711103, India
| | - Sk. Taheruddin Ahamed
- Department of Chemistry, Indian Institute of Engineering Science & Technology, Shibpur, Howrah 711103, India
| | - Pinaki Mandal
- Department of Physics, Indian Institute of Engineering Science & Technology, Shibpur, Howrah 711103, India
| | - Anup Mondal
- Department of Chemistry, Indian Institute of Engineering Science & Technology, Shibpur, Howrah 711103, India
| | - Dipali Banerjee
- Department of Physics, Indian Institute of Engineering Science & Technology, Shibpur, Howrah 711103, India
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22
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NiCo-mixed hydroxide nanosheets as a new electrochromic material with fast optical response. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.139024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Chang P, Mei H, Zhang M, Zhao Y, Wang X, Cheng L, Zhang L. 3D Printed Electrochromic Supercapacitors with Ultrahigh Mechanical Strength and Energy Density. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102639. [PMID: 34510732 DOI: 10.1002/smll.202102639] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/25/2021] [Indexed: 06/13/2023]
Abstract
With the accelerating update of advanced electronic gadgets, a great deal of attention is being paid today to the function integration and intelligent design of electronic devices. Herein, a novel kind of multitasking 3D oxygen-deficient WO3- x ∙ 2H2 O/Ag/ceramic microscaffolds, possessing simultaneous giant energy density, ultrahigh mechanical strength, and reversible electrochromic performance is proposed, and fabricated by a 3D printing technique. The ceramic microscaffolds ensure outstanding mechanical strength and stability, the topology optimized porous lattice structure provides developed surface area for coloration as well as abundant easily accessible channels for rapid ion transportation, and the bifunctional oxygen-defective pseudomaterials enable the large areal capacity and impressive electrochromic performance. As a result, this 3D-printed multitasking microscaffolds simultaneously perform structure-designable, electrochromic, compression resistant, and energy storage functions, behaving with true 3D structure with tailorable curvatures, excellent compressive strength (61.9 MPa), large color variations (>145% in b* value), good aesthetic visual quality as well as exciting electrochemical performances for energy storage including ultrahigh areal capacitance (10.05 F cm-2 at 5 mA cm-2 ), record-high energy density (0.60 mWh cm-2 ), and superior long-term cycling stability (88.6% capacity retention after 10 000 cycles). This work opens up the possibility for high-performance multi-functional coupling structural materials and integrated systems.
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Affiliation(s)
- Peng Chang
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Hui Mei
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Minggang Zhang
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Yu Zhao
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xiao Wang
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Laifei Cheng
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Litong Zhang
- Science and Technology on Thermostructural Composite Materials Laboratory, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
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24
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Lee JK, Kim YM, Moon HC. Polymeric Ion Conductors Based on Sono-Polymerized Zwitterionic Polymers for Electrochromic Supercapacitors with Improved Shelf-Life Stability. Macromol Rapid Commun 2021; 42:e2100468. [PMID: 34555244 DOI: 10.1002/marc.202100468] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/14/2021] [Indexed: 12/14/2022]
Abstract
Monolithic electrochromic supercapacitors (ECSs) have attracted increasing interest in recent electrochemical electronics due to their simplicity and unique ability to visually indicate stored energy levels. One crucial challenge for practical use is the improvement of shelf-life. Herein, zwitterionic (ZI) ionogels are proposed as effective electrolytes to reduce the self-discharging decay of ECSs. All-in-one ZI electrochromic (EC) gels are produced by one-pot sono-polymerization. The presence of ZI moieties in the gel does not affect the EC characteristics of chromophores. In addition, excellent capacitive properties in areal capacitance and coulombic efficiency are presented owing to the alignment of ZI units under an electric field and the formation of ion migration channels where rapid ion transport is allowed. Furthermore, the shelf-life of the ZI gel-based ECS is significantly improved by adjusting the interaction between polymeric gelators and ion species. The ZI gel-based ECS is expected to be a key platform for future smart energy storage devices.
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Affiliation(s)
- Jae Kyeong Lee
- Department of Chemical Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Yong Min Kim
- Department of Chemical Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Hong Chul Moon
- Department of Chemical Engineering, University of Seoul, Seoul, 02504, Republic of Korea
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25
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Electrochromic Properties of the Vanadium Pentoxide Doped with Nickel as an Ionic Storage Layer. ENERGIES 2021. [DOI: 10.3390/en14082065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The electrochromic property of nickel doped vanadium pentoxide (V2O5) deposited by a co-sputtering system is investigated. The structural analysis of the thin film was done by an X-ray diffraction (XRD) analyzer. The surface morphology of the film was studied by a field emission scanning electron microscopy (FE-SEM). The composition of the film was detected by an Auger analysis. The electrochromic properties of the device were measured by cyclic voltammetry. For the undoped V2O5 thin film, the charge storage capacity increases with the thickness and is 42.58 mC/cm2 at the thickness of 192.4 nm after 2 h deposition. For the Ni-doped V2O5, the Ni-V-O film shows V2O5 structural dominate with cathode coloration in the lower Ni deposition power region and the charge storage capacity decreases with the increases of the power, while the Ni-V-O film transfers to NiO structural dominate with anodic coloration at the realm of higher Ni doping. The charge storage capacity increases with the increase of Ni doping. It can reach to 101.35 mC/cm2. The Ni-V-O electrochromic film shows improvement of transmittance difference between colored and bleached values and improvement of charge store capacity as it is compared to pure V2O5 films.
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26
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Uchiyama H, Nakamura Y, Igarashi S. Aqueous synthesis of tin- and indium-doped WO 3 films via evaporation-driven deposition and their electrochromic properties. RSC Adv 2021; 11:7442-7449. [PMID: 35423253 PMCID: PMC8695016 DOI: 10.1039/d1ra00125f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/08/2021] [Indexed: 11/21/2022] Open
Abstract
M-doped WO3 (M = Sn or In) films were prepared from aqueous coating solutions via evaporation-driven deposition during low-speed dip coating. Sn- and In-doping were easily achieved by controlling the chemical composition of simple coating solutions containing only metal salts and water. The crystallinity of the WO3, Sn-doped WO3, and In-doped WO3 films varied with heating temperature, where amorphous and crystalline films were obtained by heating at 200 and 500 °C, respectively. All the amorphous and crystalline films showed an electrochromic response, but good photoelectrochemical stability was observed only for the crystalline samples heated at 500 °C. The crystalline In-WO3 films exhibited a faster electrochromic color change than the WO3 or Sn-WO3 films, and good cycle stability for the electrochromic response in the visible wavelength region.
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Affiliation(s)
- Hiroaki Uchiyama
- Department of Chemistry and Materials Engineering, Kansai University 3-3-35 Yamate-cho Suita 564-8680 Japan +81-6-6368-1121 extn 6131
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27
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Li M, Tao C, Zhu G, Zhang H, Lin B, Zhang X, Yang H, Guo L, Sun Y. 1,3,6,8-Pyrenetetrasulfonic acid anchored doping to prepare solution-processable polyaniline for electrochromic supercapacitors. NEW J CHEM 2021. [DOI: 10.1039/d1nj01178b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new strategy to improve the ion transmission and stability of ESCs by introducing an anchored dopant during the polymerization of PANI has been proposed.
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Affiliation(s)
- Man Li
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Chongxin Tao
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Guanqun Zhu
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Huijun Zhang
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Baoping Lin
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Xueqin Zhang
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Hong Yang
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Lingxiang Guo
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| | - Ying Sun
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- China
| |
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