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Bai Y, He J, Ran R, Zhou W, Wang W, Shao Z. Complex Metal Oxides as Emerging Inorganic Hole-Transporting Materials for Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310227. [PMID: 38196154 DOI: 10.1002/smll.202310227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/25/2023] [Indexed: 01/11/2024]
Abstract
Perovskite solar cells (PSCs) have achieved revolutionary progress during the past decades with a rapidly boosting rate in power conversion efficiencies from 3.8% to 26.1%. However, high-efficiency PSCs with organic hole-transporting materials (HTMs) suffer from inferior long-term stability and high costs. The replacement of organic HTMs with inorganic counterparts such as metal oxides can solve the above-mentioned problems to realize highly robust and cost-effective PSCs. Nevertheless, the widely used simple metal oxide-based HTMs are limited by the low conductivity and poor light transmittance due to the fixed atomic environment. As an emerging family of inorganic HTMs, complex metal oxides with superior structural/compositional flexibility have attracted rapidly increasing interest recently, showing superior carrier conductivity/mobility and superb light transmittance. Herein, the recent advancements in the design and development of complex metal oxide-based HTMs for high-performance PSCs are summarized by emphasizing the superiority of complex metal oxides as HTMs over simple metal oxide-based counterparts. Consequently, several distinct strategies for the design of complex metal oxide-based HTMs are proposed. Last, the future directions and remaining challenges of inorganic complex metal oxide-based HTMs for PSCs are also presented. This review aims to provide valuable guidelines for the further advancements of robust, high-efficiency, and low-cost PSCs.
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Affiliation(s)
- Yu Bai
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Jingsheng He
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Ran Ran
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Wei Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Wei Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Zongping Shao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Western Australia, 6845, Australia
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Xie YY, Liu QS, Zhu GR, Wu G, Chen SC, Wang YZ. Glass-Blowing-Inspired Upcycling of Thermosetting Polymer to Neuron-Like Hierarchical Carbon for Microwave Absorption and Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401995. [PMID: 38818678 DOI: 10.1002/smll.202401995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/06/2024] [Indexed: 06/01/2024]
Abstract
Upgrading thermosetting polymer waste and harvesting unwanted electromagnetic energy are of great significance in solving environmental pollution and energy shortage problems. Herein, inspired by the glass-blowing art, a spontaneous, controllable, and scalable strategy is proposed to prepare hollow carbon materials by inner blowing and outside blocking. Specifically, hierarchically neuron-like hollow carbon materials (HCMSs) with various sizes are fabricated from melamine-formaldehyde sponge (MS) waste. Benefiting from the synergistic of the hollow "cell body" and the connected "protrusions" networks, HCMSs reveal superior electromagnetic absorption performance with a strong reflection loss of -54.9 dB, electromagnetic-heat conversion ability with a high conversion efficiency of 34.4%, and efficient energy storage performance in supercapacitor. Furthermore, a multifunctional device integrating electromagnetic-heat-electrical energy conversion is designed, and its feasibility is proved by experiments and theoretical calculations. The integrated device reveals an output voltage of 34.5 mV and a maximum output power of 0.89 µW with electromagnetic radiation for 60 s. This work provides a novel solution to recycle polymer waste, electromagnetic energy, and unwanted thermal energy.
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Affiliation(s)
- Yang-Yang Xie
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Qing-Song Liu
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Guo-Rui Zhu
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Gang Wu
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Si-Chong Chen
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Yu-Zhong Wang
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
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Li Y, Yi J, Qin R, Xie C, Zhao L, Lang X, Jiang Q. CeO 2 for modulating the electronic structure of nickel-cobalt bimetallic phosphides to promote efficient overall water splitting. J Colloid Interface Sci 2024; 661:690-699. [PMID: 38320405 DOI: 10.1016/j.jcis.2024.01.098] [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: 10/03/2023] [Revised: 01/11/2024] [Accepted: 01/13/2024] [Indexed: 02/08/2024]
Abstract
The discovery of earth-abundant electrocatalysts to replace platinum and iridium for overall water splitting is a crucial step in reducing the cost of green hydrogen production. Transition metal phosphides have drawn wide attention due to their non-toxicity, good chemical stability, low cost, and stable catalytic activity in alkaline electrolytes. We report a three-dimensional flower-like structure composed of core-shell nanoneedles as catalysts, in which CeO2 is introduced on the surface of nickel cobalt bimetallic phosphide through electrodeposition. And X-ray photoelectron spectroscopy testing and DFT calculations show electron coupling and transfer between CeO2 and CoP3, thereby modulating the electronic structure of the catalyst surface and reducing the adsorption energy of H atoms during the catalytic process, resulting in enhanced catalytic activity. In 1 M KOH, it exhibits a low overpotential of 109 and 296 mV to achieve the current density of 50 mA cm-2 for HER and OER, respectively. When used as both cathode and anode as a bifunctional catalyst, a voltage of only 1.77 V is required to achieve a current density of 50 mA cm-2, demonstrating great industrial potential.
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Affiliation(s)
- Yutong Li
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Jianhui Yi
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Ruige Qin
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Chenxu Xie
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Lijun Zhao
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, Changchun 130022, China.
| | - Xingyou Lang
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Qing Jiang
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, Changchun 130022, China.
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Wu S, Yun T, Zheng C, Luo X, Qiu P, Yu H, Wang Q, Gao J, Lu X, Gao X, Shui L, Wu S, Liu JM. Ionic Liquid Bridge Assisting Bifacial Defect Passivation for Efficient All-Inorganic Perovskite Cells with High Open-Circuit Voltage. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7297-7309. [PMID: 38305856 DOI: 10.1021/acsami.3c17813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Serious open-circuit voltage (Voc) loss originating from nonradiative recombination and mismatch energy level at TiO2/perovskite buried interface dramatically limits the photovoltaic performance of all-inorganic CsPbIxBr3-x (x = 1, 2) perovskite solar cells (PSCs) fabricated through low-temperature methods. Here, an ionic liquid (IL) bridge is constructed by introducing 1-butyl-3-methylimidazolium acetate (BMIMAc) IL to treat the TiO2/perovskite buried interface, bilaterally passivate defects and modulate energy alignment. Therefore, the Voc of all-inorganic CsPbIBr2 PSCs modified by BMIMAc (Target-1) significantly increases by 148 mV (from 1.213 to 1.361 V), resulting in the efficiency increasing to 10.30% from 7.87%. Unsealed Target-1 PSCs show outstanding long-term and thermal stability. During the accelerated degradation process (85 °C, RH: 50∼60%), the Target-1 PSCs achieve a champion PCE of 11.94% with a remarkable Voc of 1.403 V, while the control PSC yields a promising PCE of 10.18% with a Voc of 1.319 V. In particular, the Voc of 1.403 V is the highest Voc reported so far in carbon-electrode-based CsPbIBr2 PSCs. Moreover, this strategy enables the modified all-inorganic CsPbI2Br PSCs to achieve a Voc of 1.295 V and a champion efficiency of 15.20%, which is close to the reported highest PCE of 15.48% for all-inorganic CsPbI2Br PSCs prepared by a low-temperature process. This study provides a simple BMIMAc IL bridge to assist bifacial defect passivation and elevate the photovoltaic performance of all-inorganic CsPbIxBr3-x (x = 1, 2) PSCs.
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Affiliation(s)
- Shengcheng Wu
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Tong Yun
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Chunqiu Zheng
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Xinyi Luo
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Peng Qiu
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Hongyang Yu
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Qiwei Wang
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Jinwei Gao
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Xubing Lu
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Xingsen Gao
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Lingling Shui
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Sujuan Wu
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Jun-Ming Liu
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
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Yu M, Kuang X, Tian H, Cui Y, Zhou S, Chen J, Ma J, Mao A. Laser-Driven Insulator-Metal Phase Transitions in CsPbI 3 Quantum Dots and Influence of Doped Metal Nanowires. J Phys Chem Lett 2023; 14:10012-10018. [PMID: 37906613 DOI: 10.1021/acs.jpclett.3c02487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
All-inorganic CsPbI3 perovskite quantum dots (QDs) have received extensive attention in developing optoelectronic devices due to their outstanding properties. Here, using time-dependent density functional theory (TDDFT), the optical properties of the three distinct phases (α, γ, and δ) of the CsPbI3 QDs are investigated. Surprisingly, the δ phase structured QDs exhibit stronger optical absorption properties than the α and γ phase QDs when exposed to equivalent laser irradiation. Considering the quantum size effect, size regulation is also performed on the three structures, the results reveal a significant improvement in optical properties as the size increases in the direction of laser irradiation. More interestingly, Ag-hybrid QDs show better optical gain and maintain a laser-driven metallic state. Our results demonstrate the great potential of size adjustment and metal nanowire coupling in improving the optoelectronic properties of QDs and developing efficient photovoltaic devices.
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Affiliation(s)
- Miao Yu
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Xiaoyu Kuang
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Hao Tian
- School of Physics and Electronic Engineering, Zhengzhou Normal University, Zhengzhou 450044, China
| | - Yingqi Cui
- School of Physics and Electronic Engineering, Zhengzhou Normal University, Zhengzhou 450044, China
| | - Siyuan Zhou
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Jichao Chen
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Jiancheng Ma
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Aijie Mao
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
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6
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Memari A, Javadian Sarraf M, Seyyed Mahdavi Chabok SJ, Motevalizadeh L. Comprehensive guidance for optimizing the colloidal quantum dot (CQD) Perovskite solar cells: experiment and simulation. Sci Rep 2023; 13:16675. [PMID: 37794238 PMCID: PMC10551010 DOI: 10.1038/s41598-023-43933-x] [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: 06/12/2023] [Accepted: 09/30/2023] [Indexed: 10/06/2023] Open
Abstract
CsPbI3 perovskite quantum dots (CPQDs) have received great attention due to their potential in large-scale applications. Increasing the efficiency of CPQDs solar cells is an important issue that is addressed in this paper. Here, we have simulated a 14.61% colloidal CPQD solar cell with the least fitting parameter that shows the accuracy of the following results. The absorber layer properties are varied and different power conversion efficiency (PCE) is achieved for the new device. The results show that colloidal CsPbI3 material properties have a significant effect on the PCE of the device. Finally, the optimized parameters for the absorber layer are listed and the optimum efficiency of 29.88% was achieved for this case. Our results are interesting that help the researchers to work on CsPbI3 materials for the achievement of highly efficient, stable, large-scale, and flexible CPQDs solar cells.
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Affiliation(s)
- Ali Memari
- Department of Electrical Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | | | | | - Leili Motevalizadeh
- Department of Physics, Mashhad Branch, Islamic Azad University, Mashhad, Iran
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Li Z, Li M, Wang X, Fu N, Yang Z. A crosslinked network polypyrrole coated cobalt doped Fe 2O 3@carbon cloth flexible anode material for quasi-solid asymmetric supercapacitors. Dalton Trans 2023; 52:13169-13180. [PMID: 37656423 DOI: 10.1039/d3dt01821k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Iron(III) oxide (Fe2O3) exhibits a substantial theoretical specific capacitance and a broad operational voltage window, making it a prospective anode material. The crystal structure of Fe2O3 was altered through cobalt doping, and its electronic conductivity was improved by supporting it with carbon cloth (Co-Fe2O3@CC). Subsequently, a crosslinked network of polypyrrole (PPy) was synthesized onto Co-Fe2O3@CC via an ice-water bath, resulting in the formation of PPy/Co-Fe2O3@CC. This PPy nano-crosslinked network not only established three-dimensional electron transport pathways on the Fe2O3 surface but also amplified the composite material's specific surface area to 45.229 m2 g-1, thereby promoting its electrochemical performance. At a current density of 2 mA cm-2, PPy/Co-Fe2O3@CC displayed an area specific capacitance of 704 mF cm-2, a value 2.2 times higher than that of Co-Fe2O3@CC. The assembled PPy/Co-Fe2O3@CC//Ni-MnO2@CC asymmetric supercapacitor demonstrated an energy density of 1.41 mW h cm-3 at a power density of 54 mW cm-3, making the synthesized electrode material a promising candidate for flexible supercapacitors.
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Affiliation(s)
- Zhiwei Li
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai 200092, P. R. China.
| | - Minglong Li
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai 200092, P. R. China.
| | - Xiaodong Wang
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology & School of Physics Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Ning Fu
- School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China.
| | - Zhenglong Yang
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai 200092, P. R. China.
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Yang Y, Ren W, Liu Y, Cai C, Zheng X, Meng S, Zhang L. Construction of shell-core Co 2P/Cd 0.9Zn 0.1S photocatalyst by electrostatic attraction for enhancing H 2 evolution. J Colloid Interface Sci 2023; 649:547-558. [PMID: 37356156 DOI: 10.1016/j.jcis.2023.06.132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/08/2023] [Accepted: 06/18/2023] [Indexed: 06/27/2023]
Abstract
Solar energy-driven photocatalytic decomposition of water to produce H2 is of great significance for promoting the development of clean energy. To improve the efficiency of H2 production, a novel spherical Co2P/Cd0.9Zn0.1S (Co2P/CZS) composite with shell-core structure was successfully synthesized by electrostatic attraction. Under visible light irradiation, the optimal Co2P/CZS achieves an excellent H2 rate of 16.05 mmol h-1 g-1 in benzyl alcohol (PhCH2OH) solution, with a quantum efficiency of 34.3% at 450 nm. The Co2P thin layer coated on the CZS surface not only facilitates the photogenerated charge transfer from Co2P to CZS under visible light illumination, but reduces the energy barrier of PhCH2OH oxidation and H2 evolution. The present results show that shell-core Co2P/CZS composite may be one of promising catalyst to enhance the activity of H2 evolution, which provides an important reference basis for new catalyst design and wide prospects for further application of metal sulfides.
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Affiliation(s)
- Yang Yang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Wei Ren
- College of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Yangyang Liu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Chun Cai
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Xiuzhen Zheng
- College of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Sugang Meng
- College of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Liwu Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China.
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Zhang P, Chen X, Wang Y, Peng W, Ren Z, Li Y, He Y, Chu B. Realizing of ZSM-5 microspheres with enhanced catalytic properties prepared from iron ore tailings via solid-phase conversion method. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27983-2. [PMID: 37266784 DOI: 10.1007/s11356-023-27983-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/25/2023] [Indexed: 06/03/2023]
Abstract
The comprehensive utilization of iron ore tailings (IOTs) not only resolved environmental problems but also brought huge economic benefits. In this study, the synthetic route presented herein provides a novel method for the synthesis of ZSM-5 microspheres from IOTs. The effects of Si/Al molar ratios and the pH of the precursor solution on the formation of zeolite was evaluated by various analytical methods. The catalytic performance of the catalyst prepared by the solid-phase conversion method (denoted as MP-ZSM-5) was evaluated by methanol-to-propylene (MTP) reaction. Compared with the zeolite catalyst that synthesized via the conventional hydrothermal method (denoted as HM-ZSM-5), MP-ZSM-5 not only prolongs catalytic lifetime from 18.7 to 36.0 h but also has higher selectivity for propylene by MP-ZSM-5 (43.7%) than that for HM-ZSM-5 (38.6%). In addition, Kissinger-Akahira-Sunose (KAS) model is applied to the TG result to study the template removal process kinetics. The average activation energy values required for the removal of CTAB and TPABr are 201.11 ± 13.42 and 326.88 ± 16.91 kJ∙mol-1, respectively. Furthermore, this result is well coupled with the model-free kinetic algorithms to determine the conversion and isoconversion of the TPABr and CTAB decomposition in ZSM-5, which serves as important guidelines for the industrial production process.
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Affiliation(s)
- Peng Zhang
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, No. 66 Waliu Road, Wanbailin District, Taiyuan, Shanxi, 030024, China
| | - Xingyue Chen
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, No. 66 Waliu Road, Wanbailin District, Taiyuan, Shanxi, 030024, China
| | - Yang Wang
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, No. 66 Waliu Road, Wanbailin District, Taiyuan, Shanxi, 030024, China
| | - Wei Peng
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, No. 66 Waliu Road, Wanbailin District, Taiyuan, Shanxi, 030024, China
| | - Zhifeng Ren
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, No. 66 Waliu Road, Wanbailin District, Taiyuan, Shanxi, 030024, China
| | - Yihong Li
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, No. 66 Waliu Road, Wanbailin District, Taiyuan, Shanxi, 030024, China.
| | - Yibo He
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, No. 66 Waliu Road, Wanbailin District, Taiyuan, Shanxi, 030024, China
| | - Baoshuai Chu
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, No. 66 Waliu Road, Wanbailin District, Taiyuan, Shanxi, 030024, China
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Lee D, Chae M, Ahmad I, Kim JR, Kim HD. Influence of WO 3-Based Antireflection Coatings on Current Density in Silicon Heterojunction Solar Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091550. [PMID: 37177095 PMCID: PMC10180147 DOI: 10.3390/nano13091550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 04/29/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023]
Abstract
Antireflection coatings (ARCs) with an indium thin oxide (ITO) layer on silicon heterojunction solar cells (SHJ) have garnered significant attention, which is due to their potential for increasing current density (Jsc) and enhancing reliability. We propose an additional tungsten trioxide (WO3) layer on the ITO/Si structure in this paper in order to raise the Jsc and demonstrate the influence on the SHJ solar cell. First, we simulate the Jsc characteristics for the proposed WO3/ITO/Si structure in order to analyze Jsc depending on the thickness of WO3 using an OPAL 2 simulator. As a result, the OPAL 2 simulation shows an increase in Jsc of 0.65 mA/cm2 after the 19 nm WO3 deposition on ITO with a doping concentration of 6.1 × 1020/cm2. We then fabricate the proposed samples and observe an improved efficiency of 0.5% with an increased Jsc of 0.75 mA/cm2 when using a 20 nm thick WO3 layer on the SHJ solar cell. The results indicate that the WO3 layer can be a candidate to improve the efficiency of SHJ solar cells with a low fabrication cost.
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Affiliation(s)
- Doowon Lee
- Department of Semiconductor Systems Engineering, and Convergence Engineering for Intelligent Drone, Institute of Semiconductor and System IC, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea
| | - Myoungsu Chae
- Department of Semiconductor Systems Engineering, and Convergence Engineering for Intelligent Drone, Institute of Semiconductor and System IC, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea
| | - Ibtisam Ahmad
- Department of Semiconductor Systems Engineering, and Convergence Engineering for Intelligent Drone, Institute of Semiconductor and System IC, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea
| | - Jong-Ryeol Kim
- Department of Optical Engineering, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea
| | - Hee-Dong Kim
- Department of Semiconductor Systems Engineering, and Convergence Engineering for Intelligent Drone, Institute of Semiconductor and System IC, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea
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Alizadeh A, Shariatinia Z. Auspicious energy conversion performance of dye-sensitized solar cells based on Gd2O3-impregnated SmTiO3 perovskite/TiO2 nanocomposite photoelectrodes. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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12
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Zhang Z, Liu Y, Gomaa H, Chen Y, Zhao Y, Mumyatov AV, Troshin PA, Deng Q, Hu N. Synchronously Producing H 2 and Purifying Methyl Orange-Polluted Water through the Reaction of an Al-GaInSn Alloy Plate and H 2O. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6366-6374. [PMID: 37129291 DOI: 10.1021/acs.langmuir.3c00048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Hydrogen gas (H2) as a fuel has the advantages of high energy density (122 kJ g-1) and zero carbon emissions. To meet the growing demand for H2 in the future, green, efficient, and convenient production technologies must be developed. The Al-H2O reaction, which produces H2 by reacting aluminum (Al) with water (H2O), is considered a rapid method for producing H2. However, Al-H2O creates a protective oxide layer on the surface of Al, preventing the production of H2. In this study, we developed a simple method for forming Al-GaInSn alloy by brushing GaInSn-Al2O3 grease onto an Al plate to form an Al/GaInSn-Al2O3/Al sandwich structure. Al2O3 in the sample supports GaInSn, prevents the leakage of GaInSn, and promotes its penetration into the Al lattice to form Al-GaInSn alloy. By forming a liquid phase within the alloy, GaInSn increases the accessibility of Al to the reaction. As a result, the Al-GaInSn alloy can rapidly react with pure H2O to produce H2 at room temperature conditions, with yields as high as ∼93.2%. It was interesting to find that dye-polluted water (methyl orange) could be synchronically purified by the Al-H2O reaction at the same time.
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Affiliation(s)
- Zhenjiao Zhang
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Yueshuang Liu
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Hassanien Gomaa
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology, Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles, and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Yanli Chen
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Yunfeng Zhao
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Alexander V Mumyatov
- Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences (FRC PCP MC RAS), Academician Semenov ave. 1, Chernogolovka 142432, Moscow, Russia
| | - Pavel A Troshin
- Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences (FRC PCP MC RAS), Academician Semenov ave. 1, Chernogolovka 142432, Moscow, Russia
- Harbin Institute of Technology, 92 West Dazhi Street, Nan Gang District, Harbin, Heilongjiang Province150001, China
- Zhengzhou Research Institute of HIT, 26 Longyuan East 7th, Jinshui District, Zhengzhou, Henan Province 450000, China
| | - Qibo Deng
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology, Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles, and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
- Advanced Equipment Research Institute Co., Ltd., of HEBUT, Tianjin 300401, China
| | - Ning Hu
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology, Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles, and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
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13
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Sun S, Wang C, Wang QC, Liu Y, Xie Q, Zeng Z, Li X, Han J, Guo R. Three-in-one oxygen-deficient titanium dioxide in a pomegranate-inspired design for improved lithium storage. J Colloid Interface Sci 2023; 633:546-554. [PMID: 36470135 DOI: 10.1016/j.jcis.2022.11.103] [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: 10/08/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 11/25/2022]
Abstract
Defects engineering has played an ever-increasing important role in electrochemistry, especially secondary lithium batteries. TiO2 is regarded as a promising anode due to its attractive cycling stability, low volume strain and great abundance, while challenges of intrinsic poor electrical and ionic conductivity remain to be addressed. Herein, we report a three-in-one oxygen vacancy (VO)-involved pomegranate design for TiO2-x/C composite anode, which provides highly improved electrical conduction, shortened Li+ pathway and promoted Li+ redox. N-doped mesoporous carbon acts as a robust scaffold to support the whole structure, electron highway and efficient reductant to generate VO on TiO2 nanoparticles during crystallization. Theoretical calculations reveal the crucial role of surface VO on TiO2 in Li electrochemistry. Resultantly, the optimal TiO2-x/C anode achieves significantly enhanced cycling performance (203 mAh/g retained after 2000 cycles at 1 A/g). Postmortem analysis reveals the robustness of VO and reasonable structure stability upon cycles for improved battery performance.
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Affiliation(s)
- Siwei Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Qin-Chao Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Yingwei Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Qihong Xie
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Zhiyong Zeng
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Xiaoge Li
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jie Han
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Rong Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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14
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Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer. JOURNAL OF NANOTECHNOLOGY 2023. [DOI: 10.1155/2023/1844719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
Interfacial carrier transfer kinetics is critical to the efficiency and stability of perovskite solar cells. Herein, we measure the regeneration rate constant, absorption cross-section, reduction rate constant, and conductivity of hole transport layered perovskites using scanning electrochemical microscopy (SECM). The SECM feedback revealed that the regeneration rate constant, absorption cross-section, and reduction rate constant of the nickel oxide (NiO) layer perovskite layer are higher than those of the poly (3,4-ethyenedioxythiophene)-poly (styrenesulfonate) layered perovskite. Also, at a specific flux density (
), the value of the regeneration rate constant (keff) in both blue and red illuminations for the NiO/CH3NH3PbI3 film is significantly higher than in both PEDOT: PSS/CH3NH3PbI3 and FTO/CH3NH3PbI3 films. The difference in keff between layered and nonlayered perovskite conforms to the impact of the hole conducting layer on the charge transfer kinetics. According to the findings, SECM is a powerful approach for screening an appropriate hole transport layer for stable perovskite solar cells.
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15
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Zhang HH, Wu CD. Creation and stabilization of carbon dots in silica-confined compartments with high thermal stability. Chem Commun (Camb) 2023; 59:1665-1668. [PMID: 36689204 DOI: 10.1039/d2cc06905a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Inspired by the formation procedures and high stability of ambers, we report herein a facile approach for the in situ creation and stabilization of carbon dots (CDs) in confined silica compartments by a solvothermal reaction and subsequent thermal treatment, and the endowed CDs exhibit the initial photoluminescence (PL) properties at 400 °C, which could be used to fabricate highly thermal-stable light-emitting diodes (LEDs) that work well at a current of 600 mA and temperature of 205 °C.
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Affiliation(s)
- Huan-Huan Zhang
- Key Laboratory of Excited-State Material of Zhejiang Province and State Key Laboratory of Silicon Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
| | - Chuan-De Wu
- Key Laboratory of Excited-State Material of Zhejiang Province and State Key Laboratory of Silicon Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
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16
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Zhao T, Jia Z, Zhang Y, Wu G. Multiphase Molybdenum Carbide Doped Carbon Hollow Sphere Engineering: The Superiority of Unique Double-Shell Structure in Microwave Absorption. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206323. [PMID: 36436944 DOI: 10.1002/smll.202206323] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/09/2022] [Indexed: 06/16/2023]
Abstract
In order to achieve excellent electromagnetic wave (EMW) absorption properties, the microstructure design and component control of the absorber are critical. In this study, three different structures made of Mo2 C/C hollow spheres are prepared and their microwave absorption behavior is investigated. The Mo2 C/C double-shell hollow spheres consisting of an outer thin shell and an inner rough thick shell with multiple EMW loss mechanisms exhibit good microwave absorption properties. In order to further improve the microwave absorption properties, MoC1-x /C double-shell hollow spheres with different crystalline phases of molybdenum carbide are prepared to further optimize the EMW loss capability of the materials. Finally, MoC1-x /C double-shell hollow spheres with α-phase molybdenum carbide have the best microwave absorption properties. When the filling is 20 wt.%, the minimum reflection loss at 1.8 mm is -50.55 dB and the effective absorption bandwidth at 2 mm is 5.36 GHz, which is expected to be a microwave absorber with the characteristics of "thin, light, wide, and strong".
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Affiliation(s)
- Tianbao Zhao
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Zirui Jia
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong, 266071, P. R. China
- Weihai Innovation Institute, Qingdao University, Shandong, 264200, China
| | - Yan Zhang
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Guanglei Wu
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
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17
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Chen X, Qin S, Denisov N, Kure-Chu SZ, Schmuki P. Pt-single atom decor ated TiO2: Tuning anodic TiO2 nanotube structure and geometry toward a high-performance photocatalytic H2 production. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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18
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Chakraborty D, Devi M, Das B, Dhar SS. Core-shell assembly of ZrO 2 nanoparticles with ionic liquid: a novel and highly efficient heterogeneous catalysts for Biginelli and esterification reactions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:13846-13861. [PMID: 36149562 DOI: 10.1007/s11356-022-23136-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Imidazolium sulfonic acid chloride grafted ZrO2 nanoparticles (ZrO2-IL) were synthesized through facile post-treatment of the nanoparticles with the imidazolium-sulfonic acid chloride ionic liquid. The immobilization of the ionic liquid over the ZrO2 nanoparticles was evident from the XRD, SEM, TEM, Raman, BET, and XPS analysis. The results obtained from the XRD analysis clearly show that the catalyst has an orthorhombic structure and from the BET analysis it is evident that the surface is mesoporous with uniform pore sizes and pore distribution. Further evidence of immobilization of ionic liquid over the ZrO2 NPs was obtained from the SEM, TEM, XPS, and Raman analysis. Under mild conditions, the synthesized heterostructure was used in the acid-catalyzed esterification of different acids. The ZrO2-IL catalyst converts 99% of the acid to ester with a 98.9% yield in 1h. The material was also shown to be highly efficient as catalyst for the Biginelli reaction under solvent-free conditions, with the catalyst for dihydropyrimidin-2(1H)-one (DHPMs) in 1h with 99.2% conversion and 99% yield. The synergy between the ionic liquid catalyst and the substrates increased the catalytic efficiency and resulted in high-yield product conversion. The mechanism of both transformation reactions was investigated, as well as the synergy between ionic liquid and ZrO2 nanoparticles for better catalytic efficiency was established.
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Affiliation(s)
- Debarati Chakraborty
- Department of Chemistry, National Institute of Technology, Assam, 788010, Silchar, India
| | - Meghali Devi
- Department of Chemistry, National Institute of Technology, Assam, 788010, Silchar, India
| | - Bishal Das
- Department of Chemistry, National Institute of Technology, Assam, 788010, Silchar, India
| | - Siddhartha Sankar Dhar
- Department of Chemistry, National Institute of Technology, Assam, 788010, Silchar, India.
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19
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Wang X, Cheng Q, Rong X, Han S, Zeng Y, Cao P, Fang M, Liu W, Zhu D, Lu Y. Preparation of high performance Ga2O3 based ultraviolet photodetector by CVD. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2022.123662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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20
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FACILE SYNTHESIS OF NI DOPED BIOBR NANOSHEETS AS EFFICIENT PHOTO-ASSISTED CHARGING SUPERCAPACITORS. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.141979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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21
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Jemini, Singh S, Pal B. Efficient ZnCr LDH/monoclinic‐WO
3
composites for Degradation of Tetracycline under Visible Light. ChemistrySelect 2022. [DOI: 10.1002/slct.202203846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jemini
- School of Chemistry and Biochemistry Thapar Institute of Engineering and Technology Patiala 147004 Punjab India
| | - Satnam Singh
- School of Chemistry and Biochemistry Thapar Institute of Engineering and Technology Patiala 147004 Punjab India
| | - Bonamali Pal
- School of Chemistry and Biochemistry Thapar Institute of Engineering and Technology Patiala 147004 Punjab India
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22
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Liu D, Wu Y, Vasenko AS, Prezhdo OV. Grain boundary sliding and distortion on a nanosecond timescale induce trap states in CsPbBr 3: ab initio investigation with machine learning force field. NANOSCALE 2022; 15:285-293. [PMID: 36484318 DOI: 10.1039/d2nr05918e] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Grain boundaries (GBs) in perovskite solar cells and optoelectronic devices are widely regarded as detrimental defects that accelerate charge and energy losses through nonradiative carrier trapping and recombination, but the mechanism is still under debate owing to the diversity of GB configurations and behaviors. We combine ab initio electronic structure and machine learning force field to investigate evolution of the geometric and electronic structure of a CsPbBr3 GB on a nanosecond timescale, which is comparable with the carrier recombination time. We demonstrate that the GB slides spontaneously within a few picoseconds increasing the band gap. Subsequent structural oscillations dynamically produce midgap trap states through Pb-Pb interactions across the GB. After several hundred picoseconds, structural distortions start to occur, increasing the occurrence of deep midgap states. We identify a distinct correlation of the average Pb-Pb distance and fluctuations in the ion coordination numbers with the appearance of the midgap states. Suppressing GB distortions through annealing and breaking up Pb-Pb dimers by passivation can efficiently alleviate the detrimental effects of GBs in perovskites. The study provides new insights into passivation of the detrimental GB defects, and demonstrates that structural and charge carrier dynamics in perovskites are intimately coupled.
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Affiliation(s)
| | - Yifan Wu
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Andrey S Vasenko
- HSE University, 101000 Moscow, Russia.
- I.E. Tamm Department of Theoretical Physics, P.N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Oleg V Prezhdo
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
- Department of Physics & Astronomy, University of Southern California, Los Angeles, CA 90089, USA
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23
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Ultrafast synthesizing nanoflower-like composites of metal carbides and metal oxyhydroxides towards high-performance supercapacitors. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Feng L, Luo J, Ma X, Cui J, Chen Y, Lu J, Zhang L, Pei Z. Study of MXene Ti 3C 2T x quantum dot thin film on quartz bulk acoustic wave uncooled infrared sensors. OPTICS EXPRESS 2022; 30:34129-34139. [PMID: 36242433 DOI: 10.1364/oe.468458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/24/2022] [Indexed: 06/16/2023]
Abstract
The infrared absorption efficiency is essential for an infrared sensor. We propose a quartz bulk acoustic wave (BAW) uncooled infrared sensor coated with MXene quantum dot film. The infrared detection is realized by measuring the resonant frequency of a Y-cut quartz BAW sensitive unit. An infrared sensor is fabricated by MEMS process, then the MXene quantum dot film is coated through the spin coating technology. The mechanism of infrared absorption enhancement is analyzed. Test results show that after coating the film, the responsivity (R) of the sensor increased by nearly 41% at a wavelength of 830nm, from 10.88MHz/W to 15.28 MHz/W. The quartz BAW infrared sensor combined with MXene quantum dots film has the potential of high-performance infrared detection.
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25
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Yang K, Yang X, Deng Z, Jiang M. High Stability Tetradentate Ligand Copper Complexes and Organic Small Molecule Hybrid Electrolyte for Dye-Sensitized Solar Cells. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Chen L, Mu X, Guo Y, Lu H, Yang Y, Xiao C, Hasi Q. MXene-doped kapok fiber aerogels with oleophobicity for efficient interfacial solar steam generation. J Colloid Interface Sci 2022; 626:35-46. [PMID: 35780550 DOI: 10.1016/j.jcis.2022.06.143] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 06/22/2022] [Accepted: 06/25/2022] [Indexed: 11/17/2022]
Abstract
Although the evaporation efficiency of photothermal materials (PMs) in pure water and brine solutions has been extensively studied, there few research on the performance in complex oily wastewater. Herein, a new monolithic solar steam generator derived from kapok fiber-based MXene composite aerogel (named as KFs-MXene) was fabricated by dipping the aerogels (KFs) which composed of kapok fiber and sodium alginate (SA) as substrates in the suspension of MXene. Benefitting from the outstanding light absorption (about 97%), better thermal insulation (thermal conductivity, 0.05039 W m-1 K-1), abundant porosity (95.60%) and rapid water transportation. KFs-MXene show good interfacial solar steam generation (ISSG) performance, resulting in a high water evaporation rate of 1.47 kg m-2h-1 with an outstanding evaporation efficiency of 90.4% under 1 kW m-2 irradiation. To improve the antifouling performance of KFs-MXene, chemically hydrophilic and oleophobic modification was applied, making the KFs-MXene can also be widely used in oily wastewater. Under 1 kW m-2 illumination, the evaporation rate and energy conversion efficiency of KFs-MXene with hydrophilic and oleophobic modification (O-KFs-MXene) in 1 wt% oily water can reach to 1.40 kg m-2h-1 and 82.87%, and the evaporation efficiency and rate of O-KFs-MXene remain stable in the continuous 6 h solar driven interface evaporation process.
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Affiliation(s)
- Lihua Chen
- College of Chemical Engineering, Experimental Teaching Department, Northwest Minzu University, Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Northwest Xincun 1, Lanzhou 730030, PR China.
| | - Xiaotong Mu
- College of Chemical Engineering, Experimental Teaching Department, Northwest Minzu University, Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Northwest Xincun 1, Lanzhou 730030, PR China
| | - Yuping Guo
- College of Chemical Engineering, Experimental Teaching Department, Northwest Minzu University, Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Northwest Xincun 1, Lanzhou 730030, PR China
| | - Haijing Lu
- College of Chemical Engineering, Experimental Teaching Department, Northwest Minzu University, Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Northwest Xincun 1, Lanzhou 730030, PR China
| | - Yiming Yang
- College of Chemical Engineering, Experimental Teaching Department, Northwest Minzu University, Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Northwest Xincun 1, Lanzhou 730030, PR China
| | - Chaohu Xiao
- College of Chemical Engineering, Experimental Teaching Department, Northwest Minzu University, Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Northwest Xincun 1, Lanzhou 730030, PR China
| | - Qimeige Hasi
- College of Chemical Engineering, Experimental Teaching Department, Northwest Minzu University, Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Northwest Xincun 1, Lanzhou 730030, PR China
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Wang J, Wang Z, Wang W, Wang Y, Hu X, Liu J, Gong X, Miao W, Ding L, Li X, Tang J. Synthesis, modification and application of titanium dioxide nanoparticles: a review. NANOSCALE 2022; 14:6709-6734. [PMID: 35475489 DOI: 10.1039/d1nr08349j] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Titanium dioxide (TiO2) has been heavily investigated owing to its low cost, benign nature and strong photocatalytic ability. Thus, TiO2 has broad applications including photocatalysts, Li-ion batteries, solar cells, medical research and so on. However, the performance of TiO2 is not satisfactory due to many factors such as the broad band gap (3.01 to 3.2 eV) and fast recombination of electron-hole pairs (10-12 to 10-11 s). Plenty of work has been undertaken to improve the properties, such as structural and dopant modifications, which broaden the applications of TiO2. This review mainly discusses the aspects of TiO2-modified nanoparticles including synthetic methods, modifications and applications.
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Affiliation(s)
- Jinqi Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Zhiheng Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Wei Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Yao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Xiaoli Hu
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Jixian Liu
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Xuezhong Gong
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Wenli Miao
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Linliang Ding
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Xinbo Li
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
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28
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SnO2 nanoparticles embedded onto MoS2 nanoflakes - An efficient catalyst for photodegradation of methylene blue and photoreduction of hexavalent chromium. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140173] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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29
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Effect of Calcination Conditions on the Properties and Photoactivity of TiO2 Modified with Biuret. Catalysts 2021. [DOI: 10.3390/catal11121546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A simple wet impregnation-calcination method was used to obtain a series of novel non-metal doped TiO2 photocatalysts. Biuret was applied as C and N source, while raw titanium dioxide derived from sulfate technology process was used as TiO2 and S source. The influence of the modification with biuret and the effect of the atmosphere (air or argon) and temperature (500–800 °C) of calcination on the physicochemical properties and photocatalytic activity of the photocatalysts towards ketoprofen decomposition under simulated solar light was investigated. Moreover, selected photocatalysts were applied for ketoprofen photodecomposition under visible and UV irradiation. Crucial features affecting the photocatalytic activity were the anatase to rutile phase ratio, anatase crystallites size and non-metals content. The obtained photocatalysts revealed improved activity in the photocatalytic ketoprofen decomposition compared to the crude TiO2. The best photoactivity under all irradiation types exhibited the photocatalyst calcined in the air atmosphere at 600 °C, composed of 96.4% of anatase with 23 nm crystallites, and containing 0.11 wt% of C, 0.05 wt% of N and 0.77 wt% of S.
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Ma X, Xu Y, Li S, Lo TW, Zhang B, Rogach AL, Lei D. A Flexible Plasmonic-Membrane-Enhanced Broadband Tin-Based Perovskite Photodetector. NANO LETTERS 2021; 21:9195-9202. [PMID: 34672605 DOI: 10.1021/acs.nanolett.1c03050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lead-free perovskite quantum dots (QDs) have been widely investigated for optoelectronic devices because of their excellent electrical and optical properties. However, optoelectronic devices based on such lead-free perovskites still have much lower performance than those made of Pb-based counterparts. Herein, we developed a lead-free photodetector with an enhanced broadband spectral response ranging from 300 to 630 nm. By balancing plasmonic near-field enhancement and surface energy quenching through precisely controlling the thickness of Al2O3 spacer between the CsSnBr3 QDs and silver nanoparticle membrane, the photodetector with 5 nm thick Al2O3 experiences a maximum photocurrent enhancement of 6.5-fold at 410 nm, with a responsivity of 62.3 mA/W and detectivity of 4.27 × 1011 Jones. Moreover, its photocurrent shows a negligible decrease after 100 cycles of bending, which is ascribed to the tension-offset induced by the self-assembled nanoparticle membrane. The proposed plasmonic membrane enhancement provides a great potential for high-performance perovskite optoelectronic devices.
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Affiliation(s)
- Xue Ma
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R. 999077, People's Republic of China
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Qianjin Street 2699, Changchun 130012, People's Republic of China
| | - Yunkun Xu
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R. 999077, People's Republic of China
| | - Siqi Li
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R. 999077, People's Republic of China
| | - Tsz Wing Lo
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R. 999077, People's Republic of China
| | - Baolin Zhang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Qianjin Street 2699, Changchun 130012, People's Republic of China
| | - Andrey L Rogach
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R. 999077, People's Republic of China
- Centre for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R. 999077, People's Republic of China
| | - Dangyuan Lei
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R. 999077, People's Republic of China
- Centre for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R. 999077, People's Republic of China
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Silicon nanowire-hydrogenated TiO2 core-shell arrays for stable electrochemical micro-capacitors. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ren W, Liu Y, Wu Y, Sun Q, Cui Y, Hao Y. Interface modification of an electron transport layer using europium acetate for enhancing the performance of P3HT-based inorganic perovskite solar cells. Phys Chem Chem Phys 2021; 23:23818-23826. [PMID: 34647116 DOI: 10.1039/d1cp03645a] [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
In recent years, although the power conversion efficiency (PCE) of thermally stable all-inorganic CsPbI3 perovskite solar cells (PSCs) had shown a great progress, the most reported CsPbI3 PSCs suffered from the large open-circuit voltage (Voc) loss, which is related to severe nonradiative recombination and a mismatch in energy level at the transport layer/perovskite interface. In this work, europium acetate (EuAc3) as a multifunction interface material is chosen to modify the TiO2/perovskite interface, the crystal quality of CsPbI3 perovskite films is improved, and both bulk and interfacial defects are reduced effectively. Meanwhile, the energy levels arrangement between TiO2 and CsPbI3 perovskites is also optimized, corresponding the raised built-in electric field afford a strength force to accelerate the transport and extraction of charge carriers from CsPbI3 perovskites to TiO2. As a result, the performance of CsPbI3 PSCs is largely enhanced with the PCE of 16.76%. When an Ag electrode was replaced by Au, the PCE further improves to 17.92%, which is the highest for CsPbI3 PSCs with P3HT as the HTL ever reported. Besides, the CsPbI3 PSC with the EuAc3 modification layer maintains 84% of the initial PCE under continuous UV irradiation for 250 h in a nitrogen filled glovebox, being obviously higher than the control devices with only 40% of the initial PCE after UV irradiation for 100 h in the same environment.
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Affiliation(s)
- Weihua Ren
- College of Physics and Optoelectronics, Key Lab of Advanced Transducers and Intelligent Control System, Taiyuan University of Technology, Taiyuan 030021, China.
| | - Yifan Liu
- College of Physics and Optoelectronics, Key Lab of Advanced Transducers and Intelligent Control System, Taiyuan University of Technology, Taiyuan 030021, China.
| | - Yukun Wu
- College of Physics and Optoelectronics, Key Lab of Advanced Transducers and Intelligent Control System, Taiyuan University of Technology, Taiyuan 030021, China.
| | - Qinjun Sun
- College of Physics and Optoelectronics, Key Lab of Advanced Transducers and Intelligent Control System, Taiyuan University of Technology, Taiyuan 030021, China.
| | - Yanxia Cui
- College of Physics and Optoelectronics, Key Lab of Advanced Transducers and Intelligent Control System, Taiyuan University of Technology, Taiyuan 030021, China.
| | - Yuying Hao
- College of Physics and Optoelectronics, Key Lab of Advanced Transducers and Intelligent Control System, Taiyuan University of Technology, Taiyuan 030021, China.
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Garg R, Gupta R, Singh N, Bansal A. Characterization and performance evaluation of synthesized ZnO nanoflowers, nanorods, and their hybrid nanocomposites with graphene oxide for degradation of Orange G. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:57009-57029. [PMID: 34080119 DOI: 10.1007/s11356-021-14511-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
Nanoflowers and nanorods of ZnO were synthesized via hydrothermal route. These morphologies of zinc oxide (ZnO) were then decorated over graphene oxide (GO) to yield hybrid nanocomposites, namely, GO-ZnOnR and GO-ZnOnF. The decoration of ZnO nanorods and nanoflowers on GO layers was confirmed through FESEM images. The synthesized nanocomposites were subjected to degrade the Orange G under identical conditions. The band gap energies determined using diffused reflectance spectra were 2.87, 2.89 eV for GO-ZnOnR, and GO-ZnOnF, whereas, for both ZnOnR and ZnOnF, it was 3.14 eV. For 50 min of UV irradiations (at 6 pH), 100% degradation was achieved corresponding to GO-ZnOnR (44.1 m2 g-1) followed by 90.1%, 70.2%, and 68.3% with GO-ZnOnF (35.9 m2 g-1), ZnOnR (20 m2 g-1), and ZnOnF (15.1 m2 g-1), respectively. Significant boost in the degradation of Orange G, with GO-ZnOnR, was attributed to its reduced band gap, higher surface area, and enhanced charge separation. Kinetic study confirms the pseudo-first-order reaction rate. Mineralization efficiency of 91% in 120 min indicated the efficient reduction of Orange G and its intermediates. Further, reactive species trapping experiments revealed that photo-induced •OH are dominant radicals for the degradation followed by •O2- and h+. Liquid chromatography mass spectra data has been used to predict the plausible reaction pathways. Reusability studies indicated that GO-ZnOnR can be used for four successive degradation cycles, without any significant activity loss.
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Affiliation(s)
- Renuka Garg
- Department of Chemical Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar, 144011, Punjab, India
| | - Renu Gupta
- Department of Chemical Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar, 144011, Punjab, India
| | - Nirmal Singh
- Post Graduate Department of Chemistry, RSD College, Ferozepur, 152002, Punjab, India
| | - Ajay Bansal
- Department of Chemical Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar, 144011, Punjab, India.
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P- N heterojunction NiO/ZnO electrode with high electrochemical performance for supercapacitor applications. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138976] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Chen LS, Sil MC, Lee YH, Liu HJ, Chen CM. Hybrid titanium dioxide/sericite light scattering layer to enhance light harvesting of dye-sensitized solar cells. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zhou R, Cheng CA, Qiu S, Chen J, Nie K, Wu M, Lin P, Wang H, Wang L, Mei L. A novel and facile synthesis strategy for highly stable cesium lead halide nanowires. RSC Adv 2021; 11:28716-28722. [PMID: 35478567 PMCID: PMC9038128 DOI: 10.1039/d1ra04429j] [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: 06/08/2021] [Accepted: 08/13/2021] [Indexed: 11/25/2022] Open
Abstract
As promising low-dimensional semiconductor materials, cesium lead halide (CsPbX3, X = Cl, Br, I) perovskite-like nanowires (NWs) can be widely applied to the field of semiconductor devices and integrated optoelectronics. Therefore, developing a facile and efficient synthesis method of cesium lead halide perovskite-like NWs can bring both fundamental and practical impacts to the field of optoelectronics. Here, we developed a synthesis strategy of all-inorganic cesium lead halide CsPbI3 perovskite-like NWs under catalyst-free, solution-phase, and low-temperature conditions. The synthesis strategy was designed such that no inert gas is required and thus enables the synthesis to be carried out in air, which significantly reduces temperature, steps, time, and cost required for the reaction. The as-synthesized NWs were 7 μm in length and 80–100 nm in diameter with ideal morphology. Most of the CsPbI3 NWs were crystallized in orthorhombic phases that were arranged orderly with a uniform growth direction. In addition, the CsPbI3 NWs showed a photoluminescence peak near 610 nm and the fluorescence lifetime was 7.34 ns. The photoluminescence mechanism of CsPbI3 NWs involves the self-trapping behaviour in the radiative recombination process. The composition of CsPbI3 NWs is highly related to the synthesis temperature. The facile synthesis strategy has opened up a novel path for the synthesis of perovskite-like NWs, laying the foundation for the application of nano-optoelectronic devices, fluorescent anti-counterfeiting, and fluorescent composite materials. Under air ambient, low temperature, and short reaction time conditions, a facile operation step is proposed to synthesize CsPbI3 nanowires.![]()
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Affiliation(s)
- Ranran Zhou
- School of Materials Science and Engineering, Key Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industry, State Key Laboratory of New Textile Materials & Advanced Processing Technology and Key Laboratory of Textile Fiber and Products (Ministry of Education), Wuhan Textile University 430200 Wuhan P. R. China
| | - Chi-An Cheng
- Department of Bioengineering, University of California Los Angeles Los Angeles California USA
| | - Siying Qiu
- School of Materials Science and Engineering, Key Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industry, State Key Laboratory of New Textile Materials & Advanced Processing Technology and Key Laboratory of Textile Fiber and Products (Ministry of Education), Wuhan Textile University 430200 Wuhan P. R. China
| | - Jiayi Chen
- School of Materials Science and Engineering, Key Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industry, State Key Laboratory of New Textile Materials & Advanced Processing Technology and Key Laboratory of Textile Fiber and Products (Ministry of Education), Wuhan Textile University 430200 Wuhan P. R. China
| | - Kun Nie
- School of Materials Science and Engineering, Key Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industry, State Key Laboratory of New Textile Materials & Advanced Processing Technology and Key Laboratory of Textile Fiber and Products (Ministry of Education), Wuhan Textile University 430200 Wuhan P. R. China
| | - Mengyun Wu
- School of Materials Science and Engineering, Key Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industry, State Key Laboratory of New Textile Materials & Advanced Processing Technology and Key Laboratory of Textile Fiber and Products (Ministry of Education), Wuhan Textile University 430200 Wuhan P. R. China
| | - Panlong Lin
- School of Materials Science and Engineering, Key Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industry, State Key Laboratory of New Textile Materials & Advanced Processing Technology and Key Laboratory of Textile Fiber and Products (Ministry of Education), Wuhan Textile University 430200 Wuhan P. R. China
| | - Hua Wang
- School of Materials Science and Engineering, Key Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industry, State Key Laboratory of New Textile Materials & Advanced Processing Technology and Key Laboratory of Textile Fiber and Products (Ministry of Education), Wuhan Textile University 430200 Wuhan P. R. China
| | - Luoxin Wang
- School of Materials Science and Engineering, Key Laboratory of Polyphenylene Sulfide Fiber and Application in Textile Industry, State Key Laboratory of New Textile Materials & Advanced Processing Technology and Key Laboratory of Textile Fiber and Products (Ministry of Education), Wuhan Textile University 430200 Wuhan P. R. China
| | - Lefu Mei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing) 100083 Beijing P. R. China
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Yang S, Zhu H, Xu E, Li J, Yang H, Zhang Y, Zhu Z, Jiang Y. Suppressing ion migration of CsPbBr xI 3-xnanocrystals by Nickel doping and the application in high-efficiency WLEDs. NANOTECHNOLOGY 2021; 32:335601. [PMID: 33957616 DOI: 10.1088/1361-6528/abfe91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
All inorganic perovskite nanocrystals CsPbX3(X = Cl, Br, I) are the great potential candidates for the application of high-performance light emitting diodes (LED) due to their high Photoluminescence Quantum Yield (PLQY), high defect tolerance, narrow full-width half-maximum and tunable wavelength of 410-700 nm. However, the application of red-emitting (630-650 nm) CsPbBrxI3-xnanocrystals are perplexed by phase segregation due to the composition of mixed halides and the difference in halide ion mobility. Herein, we provide an effective strategy to suppressing the migration of Br/I ions through Ni2+doping via a facile Hot-Injection method and the PLQY was improved as well. DFT calculations show that the introduction of Ni2+causes a slight contraction of the host crystal structure, which improves the bond energy between Pb and halides and reduces the level of surface defects. Therefore, the phase stability is improved by Ni2+doping because the phase segregation caused by ion migration in the mixed phase is effectively inhibited. Meanwhile, the non-radiative recombination in the exciton transition process is reduced and the PLQY is improved. What's more, benefiting from the suppressed ion migration and enhanced PLQY, we combine the Ni2+-doped CsPbBrxI3-xnanocrystals with different Br/I ratios and YAG: Ce3+phosphors as color conversion layers to fabricate high efficiency WLED. When the ratio of Br/I is 9:11, WLED has a color coordinate of (0.3621, 0.3458), the color temperature of 4336 K and presents a high luminous efficiency of 113.20 lm W-1, color rendering index of 94.9 under the driving current of 20 mA and exhibits excellent stability, which shows great potential in the application of LED.
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Affiliation(s)
- Supeng Yang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Hanwen Zhu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Enze Xu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Junchun Li
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Heming Yang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Yan Zhang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Zhifeng Zhu
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Yang Jiang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
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Mandal S, Ghosh S, Mukherjee S, De CK, Roy D, Samanta T, Mandal PK. Unravelling halide-dependent charge carrier dynamics in CsPb(Br/Cl) 3 perovskite nanocrystals. NANOSCALE 2021; 13:3654-3661. [PMID: 33538737 DOI: 10.1039/d0nr08428j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
With an increasing bromide content in CsPb(Br/Cl)3 perovskite nanocrystals (PNCs), the steady state photoluminescence quantum yield value increases from 28% to 50% to 76%. Ultrafast transient absorption analyses reveal that the normalized band edge population increases more than two-fold on excitation at the band edge with increasing bromide content, and the hot exciton trapping time increases from 450 fs to 520 fs to 700 fs with increasing bromide content. Ultrasensitive single particle spectroscopic analyses reveal that the peak of the ON fraction distribution increases from 0.65 to 0.75 to 0.85 with increasing bromide content. More specifically, the percentage of PNCs with the ON fraction >75% increases four fold from 24% to 50% to 98% with increasing bromide content. Moreover, the ratio of the detrapping rate and trapping rate increases more than 25 fold with an increase in bromide content, signifying the excitons remaining in the trap state for a smaller time with increasing bromide content. In order to standardize the measurement and analyses, all these three PNCs have the same size and shape, and all the excitations have been made at the same energy above the band edge for all three PNCs and for both ultrafast transient absorption and ultrasensitive single particle measurements.
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Affiliation(s)
- Saptarshi Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Swarnali Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Soumen Mukherjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Chayan K De
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Debjit Roy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Tridib Samanta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Prasun K Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246 and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246.
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Guanidinium iodide modification enabled highly efficient and stable all-inorganic CsPbBr3 perovskite solar cells. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137360] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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