Article
Electrochemistry
Kezhong Wu, Feifei Nie, Xin Qi, Hui Zhao, Ping Li, Mingxing Wu
Summary: Modification and reallocation of TMCs as a catalyst for the CE of DSSCs is a unique approach to improve the PCE. Four different Fe3C@C composites were prepared using different morphologies of Fe2O3 and further utilized in DSSCs. The Fe3C@C composites exhibited morphological dependence on Fe2O3 as a Fe source, leading to high PCEs and potential as Pt-free CEs.
ELECTROCHIMICA ACTA
(2023)
Article
Energy & Fuels
Aycan Atli, Abdullah Yildiz
Summary: An opaque platinum film as a counter electrode in dye-sensitized solar cells demonstrates enhanced reflectivity, smaller resistance, and excellent adhesion properties. As a result, the DSSC with the opaque platinum film achieves a higher electrical power conversion efficiency compared to the transparent platinum film under the same conditions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Shuang Lu, Mingzhu Chen, Yinglin Wang, Rong Li, Jun Lin, Xintong Zhang
Summary: The study demonstrates a method to improve the conductivity and catalytic performance of MoS2 synthesized by ultrasonic spray pyrolysis (USP) using reduced graphene oxide (rGO). The MoS2/rGO hybrids combine the abundant active sites of MoS2 with the excellent conductivity of rGO to reduce electron transfer resistance at the CE/electrolyte interface, leading to increased efficiency and stability. This scalable and simple strategy shows potential for synthesizing efficient materials in various electrochemical applications.
Article
Chemistry, Physical
Bakhytzhan Baptayev, Yerbolat Tashenov, Salimgerey Adilov, Mannix P. Balanay
Summary: Replacing platinum with alternative materials is crucial in DSSCs due to its rarity and high cost, as well as the stability issues of Pt-based counter electrodes. Composite materials are of great interest as they can combine the properties of their components. In this study, a ternary ZnCo2S4 composite grown on multi-walled carbon nanotubes was introduced as a Pt-free counter electrode in DSSCs. The composite showed superior electrocatalytic activity and improved conversion efficiency compared to Pt, making it a promising alternative.
SURFACES AND INTERFACES
(2023)
Article
Multidisciplinary Sciences
Nattakan Kanjana, Wasan Maiaugree, Paveena Laokul, Inthira Chaiya, Thodsaphon Lunnoo, Poramed Wongjom, Yingyot Infahsaeng, Bunjong Thongdang, Vittaya Amornkitbamrung
Summary: For the first time, solid waste fly ash from a power plant was used in a solar cell application. Various analyses were conducted to understand the properties of the fly ash and its composite film with PEDOT:PSS. The results showed that the fly ash-based solar cell had high efficiency and improved catalytic activity in the counter electrodes.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Yanan Li, Yinglin Wang, Jianfei Lin, Yuming Shi, Kuangyu Zhu, Yanmei Xing, Xiaofei Li, Yuwen Jia, Xintong Zhang
Summary: Bifacial dye-sensitized solar cells (DSCs) have the potential to be high-efficiency photovoltaic devices with broad application environments. The challenge lies in finding electrocatalytic counter electrodes (CEs) that have both transparency and conductivity. A study found that using a solution plasma method can improve the performance of CEs, thereby increasing the efficiency of bifacial DSCs.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
G. Syrrokostas, K. Bhorkar, L. Sygellou, V. Dracopoulos, G. Leftheriotis, S. N. Yannopoulos
Summary: In this study, it is demonstrated that PtSe2 films, prepared by soft selenization of pre-deposited Pt, are highly efficient counter electrodes (CEs) in dye sensitized solar cells (DSSCs). Devices based on PtSe2 achieve better photoconversion efficiency (9.5±1.2%) compared to those using bare Pt CE (9.18±0.21%), even with lower Pt loading. The improved performance of PtSe2 CEs is attributed to the higher availability of catalytic active sites and more effective mechanism of interfacial electron transfer.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Muhamad Adam Ramli, Elvy Rahmi Mawarnis, Marjoni Imamora Ali Umar, Mohd Yusri Abd Rahman, Vivi Fauzia, Muhammad Nurdin, Akrajas Ali Umar
Summary: This paper investigates the impact of bimetallic nanocrystals on the charge transfer dynamics of dye-sensitized solar cells. It was found that bimetallic CEs can significantly reduce the interfacial charge transfer resistance, improve carrier diffusion and lifetime, leading to enhanced device performance in DSSCs.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
U. A. Kamarulzaman, M. Y. A. Rahman, M. S. Su'ait, A. A. Umar
Summary: NiPd alloy-rGO prepared by LPD technique was studied as CE for DSSC, showing potential to replace Pt with comparable efficiency. Ni content and Ni:Pd ratio were found to significantly influence the device performance.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Inorganic & Nuclear
G. Sankar, P. Anbarasu, R. Mahendran, K. Rajendran, T. Sivakumar
Summary: This paper systematically researched a new type of solar cell counterelectrode material CoNi2S4/rGO, which exhibits excellent photo-conversion efficiency and electrocatalytic performance, outperforming traditional counter electrode materials Pt and pristine CoNi2S4.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Kirandeep Kaur, Meenakshi Patyal, Nidhi Gupta, Arun Kumar, Manika Khanuja
Summary: In this study, octaaza-bis-alpha-diimine ligand and its Yb complex grafted upon GO were synthesized and characterized. The composites with varying GO/Yb ratios were investigated as counter electrodes in dye sensitized solar cells. The device fabricated with the highest ratio (1:10) exhibited the highest values in terms of Voc, Jsc, and PCE, showing promising potential to replace traditional Pt counter electrodes.
Article
Nanoscience & Nanotechnology
Subashini Gnanasekar, Andrews Nirmala Grace
Summary: The nanostructure of titanium nitride was studied and synthesized as a counter electrode for dye-sensitized solar cells, showing electrocatalytic activity comparable to platinum CE. The TiN NFB CE demonstrated high power conversion efficiency and stability, indicating potential application in replacing costly platinum CEs in large area DSSCs.
ACS APPLIED NANO MATERIALS
(2021)
Article
Energy & Fuels
Andi Zhao, Shiqi Huang, Jianting Huang, Ping Hu, Haijuan Mao, Caiyun Chen, Yafeng Li, Mingdeng Wei
Summary: Pt nanoparticles are deposited on nickel foam via a mild displacement reaction at room temperature, producing efficient and flexible Pt counter electrodes for dye-sensitized solar cells (DSSCs). By prolonging the reaction time, the catalytic activities of the Pt counter electrode can be enhanced. The approach is facile and can be scaled up for large production of efficient flexible counter electrodes in DSSCs.
Article
Chemistry, Analytical
Kezhong Wu, Zejin Wang, FeiFei Nie, Bei Ruan, Hui Zhao, Mingxing Wu
Summary: Transition metal compound catalysts have potential applications in Pt-free counter electrodes (CEs) for reducing costs and improving power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs). In this study, CuWO4@C composite catalysts were synthesized by pyrolyzing Cu-based polyoxotungstate (H3PW12O40) precursor in the presence of polyaniline. The effects of pyrolysis temperature on the composition, morphology, and structure of the CuWO4@C composite were investigated. The optimal pyrolysis temperature of 800 degrees C resulted in the highest PCE of 7.11% for the regeneration of I3/I couple in the DSSCs.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Engineering, Electrical & Electronic
S. Visnupriya, N. Prabavathi, P. Vijayakumar, N. Santhosh, K. Pradeeswari
Summary: This work presents a facile route for fabricating bimetallic (tungsten and molybdenum)-reduced graphene oxide nanocomposites as a promising electrocatalyst for dye-sensitized solar cells. The properties of the nanocomposites were investigated using various characterization tools, and their photovoltaic and electrochemical performance were evaluated. The bimetallic nanocomposites exhibited comparable power conversion efficiency to traditional materials and could be a feasible alternative with reduced production cost.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Polymer Science
Ying Shu, Jing Wang, Chen Qian, Qiaofang Shi, Rongguan Lv, Huayu Wu, Ming Chen
Summary: In this study, DB18C6/PAN composite nanofibers were prepared by electrospinning, with good morphology achieved by controlling DB18C6 weight percent and electrospinning parameters. The nanofibers exhibited adsorptive selectivity towards alkali metal ions, with the 15wt%DB18C6/PAN nanofibers showing the highest adsorption capacity. Adsorption kinetics of the 15wt%DB18C6/PAN nanofibers for Na+ and K+ followed the first-order equation, and adsorption isotherms were confirmed to Langmuir adsorption isotherm model.
Article
Chemistry, Physical
Xiaoyu Wu, Xing Chen, Huayu Wu, Bin Xie, Denggui Wang, Rui Wang, Xiuyun Zhang, Yuanzhe Piao, Guowang Diao, Ming Chen
Summary: By utilizing dual-wall hollow carbon spheres (DWHCS) structure and chemisorption strategy with cetyltrimethylammonium bromide (CTAB), this study successfully improved the cycling performance of sodium-selenium and potassium-selenium batteries, achieving outstanding cycling stability for both systems.
Article
Chemistry, Physical
Nuo Xu, Chenyi Yan, Wei He, Lin Xu, Zhouheng Jiang, Anyu Zheng, Huayu Wu, Ming Chen, Guowang Diao
Summary: This paper successfully synthesizes a new flexible anode material V2O5-CFC through electrospinning and high-temperature calcination, and demonstrates its high specific capacity and excellent cycling performance in aqueous zinc-ion batteries. The use of a composite fiber structure alleviates the volume effect in the charge/discharge process and shows the potential application of this material as a flexible energy storage device.
JOURNAL OF POWER SOURCES
(2022)
Article
Nanoscience & Nanotechnology
Xiaoyu Wu, Lin Xu, JianHua Wang, Yan Dong, Rui Wang, Qiaofang Shi, Guowang Diao, Ming Chen, Rongguan Lv
Summary: By utilizing a double-walled hollow carbon spheres loading strategy, ultrafine SnS2 nanosheet adhesion was achieved, demonstrating outstanding electrochemical performance in sodium ion batteries and suggesting broad application prospects in the field of energy storage.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Lin Xu, Xiaoyu Wu, Jianhua Wang, Yan Dong, Denggui Wang, Rui Wang, Jie Han, Rongguan Lv, Ming Chen
Summary: In this study, ultrafine nanocrystals SnS2 were successfully confined to the inner wall of hollow mesoporous carbon nanospheres (HMCNS) by one-step hydrothermal reaction, forming a special hollow structure with buffer volume effect. The composite showed outstanding electrochemical performance in lithium-ion batteries and sodium-ion batteries, with excellent cyclic stability and rate performance.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Electrochemistry
Huayu Wu, Chenyi Yan, Lin Xu, Nuo Xu, Xiaoyu Wu, Zhouheng Jiang, Shoupu Zhu, Guowang Diao, Ming Chen
Summary: A flexible hydrogel cathode with high capacity and excellent cyclic stability was prepared using a freeze-thaw method. The material has a complex 3D cross-linking structure and reinforcement effect, which effectively prevents volume expansion and pulverization. Electrochemical kinetics show that the material has good ion transport properties.
Article
Chemistry, Multidisciplinary
Zhiyuan Ma, Wentao Liu, Xinyuan Jiang, Yi Liu, Guang Yang, Zhen Wu, Qiuping Zhou, Ming Chen, Ju Xie, Lubin Ni, Guowang Diao
Summary: In this study, a sulfur host material thiodimolybdate [Mo2S12](2-) cluster is introduced, which effectively confines the diffusion of polysulfides in lithium-sulfur batteries and exhibits good electrochemical performance.
Article
Chemistry, Multidisciplinary
Guang Yang, Yuchao Wu, Zengxiang Lv, Xinyuan Jiang, Jianhang Shi, Yuzhen Zhang, Ming Chen, Lubin Ni, Guowang Diao, Yongge Wei
Summary: In this paper, a novel supramolecular complex Li3Cl[(HPW12O40)(H24C12O6)(3)(CH3CN)(2)] {CR-PW12} was identified as a promising sulfur host for lithium-sulfur batteries. The {CR-PW12}@S cathode showed a reversible capacity of 1120 mA h g(-)(1) at 1.0 C and excellent cycle stability.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yatao Yan, Yang Chen, Mengting Shao, Xing Chen, Zhenshan Yang, Jiaming Wang, Haoyu Chen, Lubin Ni, Guowang Diao, Ming Chen
Summary: In this study, Co(OH)(2) and CoP ultrathin nanosheet arrays were fabricated on titanium mesh using electrodeposition and phosphating processes. The CoP nanosheets showed higher activity after low-temperature phosphorization, making them efficient catalysts for hydrogen evolution reaction in water electrolysis.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Inorganic & Nuclear
Yuchao Wu, Ni Wu, Xinyuan Jiang, Suqin Duan, Tangsuo Li, Qiuping Zhou, Ming Chen, Guowang Diao, Zhen Wu, Lubin Ni
Summary: In this study, a bifunctional K3PW12O40/graphene oxide-modified polypropylene separator was introduced to mitigate the challenges of polysulfide diffusion and lithium dendrite growth in lithium-sulfur batteries. The modified separator effectively captured and converted lithium polysulfides, suppressing the shuttle effect, and stabilized the lithium metal anode, preventing dendrite formation. The constructed separator exhibited a favorable initial specific capacity and remarkable cycling performance.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Rui Wang, Denggui Wang, Yan Dong, Bin Xie, Xiaoyu Wu, Qianhui Wu, Shoupu Zhu, Guowang Diao, Ming Chen
Summary: This review paper provides a comprehensive overview of C/Se composite as the cathode material for Na-Se batteries. It highlights different carbon hosts based on hierarchical porous structure and adsorption effect, offering valuable insights into the rational design and operating principle. Since research on Na-Se batteries is still in its early stage, this work is expected to inspire more visionary ideas.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jianhua Wang, Yan Dong, Longfei Li, Jingjing Jiang, Lele Fan, Fanjie Kong, Qianhui Wu, Lubin Ni, Guowang Diao, Ming Chen
Summary: In this paper, a lithiophilic framework modified with bimetallic selenides, Cu1.8Se and NiSe2, is fabricated by a simple plating method and subsequent selenization process. The framework shows excellent lithiophilic properties and lithium-ion conductivity, leading to superior cycling stability and rate performance in lithium-metal batteries.
JOURNAL OF POWER SOURCES
(2023)
Review
Chemistry, Physical
Jiaming Wang, Yuting Hu, Feiyu Wang, Yatao Yan, Yang Chen, Mengting Shao, Qianhui Wu, Shoupu Zhu, Guowang Diao, Ming Chen
Summary: Hydrogen energy is considered as a cost-effective and environmentally friendly secondary energy source, making it a top target for the development of clean energy. Electrolysis of water is the most efficient and environmentally friendly technology for producing hydrogen, and there is an urgent need to develop catalysts for electrolytic hydrogen production. Copper foams are used as electrode substrates due to their high electrical conductivity, highly porous three-dimensional (3D) network structure, and low cost. This review discusses recent progress in the construction of nanomaterials on 3D copper foams as advanced composite catalysts for electrochemical water electrolysis, as well as the applications of copper foams in various reactions.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yuchao Wu, Ni Wu, Xinyuan Jiang, Suqin Duan, Tangsuo Li, Qiuping Zhou, Ming Chen, Guowang Diao, Zhen Wu, Lubin Ni
Summary: This study introduces a bifunctional separator that effectively addresses the challenges of polysulfide diffusion and lithium dendrite growth in Li-S batteries by incorporating K3PW12O40 into a nanostructured graphene oxide barrier membrane.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Zhiyuan Ma, Jie Gu, Xinyuan Jiang, Guang Yang, Zhen Wu, Ju Xie, Ming Chen, Lubin Ni, Guowang Diao
Summary: Thiomolybdate clusters combined with mesoporous carbon spheres serve as sulfur host, increasing overall electrical conductivity through inner carbon capsule and enhancing the redox kinetics of polysulfides via bidirectional catalysis, thereby confining volume expansion of sulfur and shuttle effect.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
