Article
Chemistry, Physical
Satish A. Mahadik, Hemraj M. Yadav, Sarika S. Mahadik
Summary: By tuning surface polarity and sensitizing TiO2 nanorods with chlorophyll-a dye, improvements in DSSCs have been achieved. Various surface properties such as superhydrophobicity and reduction in oxygen defects were successfully explored. The sensitized system showed a 3.69 times improvement in PEC under 1000 W light illumination.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Mehdi Ismail, Celine Olivier, Thierry Toupance
Summary: Anatase TiO2 photoanodes were modified with hydrothermally synthesized WO3 nanorods for DSSC applications. Two configurations were investigated, where the addition of WO3 nanorods in the TiO2 matrix showed better performance for front illumination, while the undercoat of WO3 nanorods on FTO substrate showed better performance for back illumination. The excellent electron mobility and specific nanorod shape of WO3 contributed to charge trapping and injection, reducing recombination and dark current, while the scattering nature of the WO3 nanorods undercoat was beneficial for light harvesting.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Fengjuan Miao, Fuchen Chu, Bingcheng Sun, Bairui Tao, Peng Zhang, Yu Zang, Paul K. Chu
Summary: This study presents the design and fabrication of a photoanode composed of Au/SnS/TiO2 sensitized with natural dye for dye-sensitized solar cells (DSSCs). By calcination, a layer of spherical nano-TiO2 is prepared, and a layer of nano-SnS is deposited on the TiO2 photoanode using the continuous ion layer adsorption reaction (SILAR). The sensitized Au nanoparticles exhibit enhanced localized surface plasmon resonance (LSPR) effects and electron trapping ability, resulting in improved electron mobility and reduced electron recombination in the DSSC.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
N. Sriharan, T. S. Senthil, P. Soundarrajan, Misook Kang
Summary: TiO2 nanorods were synthesized from colloidal titanate using a hydrothermal method, and Mg metallic ions were doped to study their influence on the growth of TiO2 nanorods. The introduction of Mg dopant induced constraint stress in the nanorods, resulting in a shift in preferentially oriented crystallographic plane. The crystallographic structures of TiO2 nanorods remained unchanged, but the surface to volume ratio and absorption capacity shifted due to Mg doping. This physical property change was confirmed by EDS analysis. The doped TiO2 nanorods showed improved performance as photoelectrodes in dye-sensitized solar cells, with the 2 mol.% Mg doped TiO2 nanorods achieving a high power conversion efficiency of 6.36%.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Bandana Ranamagar, Isaac Abiye, Fasil Abebe
Summary: The Rhodamine-6G derivative Rhd and its metal complexes with aluminum and chromium ions were synthesized and characterized using UV-vis and fluorescence spectroscopy. Dye-sensitized solar cells (DSSCs) were fabricated with Rhd and the metal complexes, and their solar-to-electric power efficiencies were determined through current-density measurements and Electrochemical Impedance Spectroscopy (EIS). The Rhd and Cr3+-sensitized solar cell showed the highest solar to electric power efficiency at 0.16%.
Article
Energy & Fuels
Abdullah Atilgan, Abdullah Yildiz
Summary: The development of novel bilayer photoanodes is crucial for efficient dye-sensitized solar cells. In this study, a homojunction photoanode consisting of undoped and Ni-doped TiO2 layers was prepared. By tuning the location of the doped layer, the photoconversion efficiency was greatly improved. The bilayer structure enhanced light absorption, resulting in increased short circuit current and open-circuit voltage.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Fengjuan Miao, Bingcheng Sun, Bairui Tao, Yanchun Wang, Paul K. Chu
Summary: This paper demonstrates the application of a novel ternary nanocomposite MoS2/Ag/TiO2 photoanode in high efficiency plasma dye sensitive solar cell. The ternary nanocomposite MoS2/Ag/TiO2 was successfully synthesized without any hazardous substances. The addition of MoS2 improves the light absorption ability and electron transfer rate of the photoanode, leading to a significant enhancement in the photoelectric conversion efficiency of the dye sensitive solar cell.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Hugo G. Lemos, Rodrigo M. Ronchi, Guilherme R. Portugal, Jessica H. H. Rossato, Gurpreet S. Selopal, David Barba, Everaldo C. Venancio, Federico Rosei, Jeverson T. Arantes, Sydney F. Santos
Summary: Dye-sensitized solar cells (DSSCs) are a promising technology for clean energy conversion. This study focuses on enhancing the efficiency of DSSCs by optimizing charge transport and non-radiative carrier recombination. The introduction of Ti3C2Tx MXene into the photoanode improves electron transport and increases the energy-to-current conversion of DSSCs.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Wen-Feng Lai, Pei-Ling Chao, Xin-Yu Lin, Yin-Pei Chen, Jih-Hsin Liu, Tz-Feng Lin, Wei-Chou Hsu, Chia-Yi Huang
Summary: In this study, a one-dimensional protrusive TiO2 strip array was fabricated using chemical and physical methods. A porous semiconductor layer was coated on the strip array. The results showed that the DSSC with the TiO2 strip array had a higher energy conversion efficiency, which can be attributed to the large surface area of the protrusive structure and its specific electron transport paths.
Article
Engineering, Electrical & Electronic
Xintong Chen, Wei Zheng
Summary: Co-sensitization of Ag2S QDs and N719 dye in liquid-junction film solar cells improves light absorption and enhances photovoltaic performance. The introduction of Ag2S QDs reduces interface impedance and increases the lifetime of photo-excited carriers.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Review
Chemistry, Multidisciplinary
Ana Belen Munoz-Garcia, Iacopo Benesperi, Gerrit Boschloo, Javier J. Concepcion, Jared H. Delcamp, Elizabeth A. Gibson, Gerald J. Meyer, Michele Pavone, Henrik Pettersson, Anders Hagfeldt, Marina Freitag
Summary: Dye-sensitized solar cells (DSCs) and dye-sensitized photoelectrochemical cells (DSPECs) have seen a revival in recent years as they offer unique properties such as low cost, non-toxic materials, colorfulness, transparency, and efficiency in low light conditions. This review covers advancements in DSC technology over the past decade, including theoretical studies, characterization techniques, materials, applications, and commercialization efforts by various companies.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Physics, Multidisciplinary
Yu-Chih Chiang, Chia-Rong Lee, Chia-Yi Huang
Summary: A 90-nm-thick TiO2 grid was fabricated using photolithography, sputtering, and lift-off process. A nanoporous film was deposited on the TiO2 grid, which induced a protrusive structure. Experimental results showed that introducing the TiO2 grid into a dye-sensitized solar cell increased its power conversion efficiency by 25%. This improvement can be attributed to the large surface area and directional electron transport channels of the protrusive structure.
Article
Chemistry, Physical
Shanmuganathan Venkatesan, Yun-Yu Chen, Hsisheng Teng, Yuh-Lang Lee
Summary: This study demonstrates a quick dye adsorption process using electrochemical methods, reducing the fabrication time of dye-sensitized solar cells. The electrodes prepared using constant potential methods show high performance in DSSCs with high efficiencies and low dark current densities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Pawel Gnida, Pawel Jarka, Pavel Chulkin, Aleksandra Drygala, Marcin Libera, Tomasz Tanski, Ewa Schab-Balcerzak
Summary: The impact of various TiO2 nanostructures on the properties of photoanodes and the photovoltaic parameters of dye-sensitized solar cells was investigated. It was found that the addition of nanotubes to the photoanode resulted in the highest UV-Vis absorption, indicating a higher number of sensitizer molecules anchored to the titanium dioxide. This led to the highest power conversion efficiency in the solar cells containing nanotubes and a mixture of dyes with a co-adsorbent.
Article
Engineering, Electrical & Electronic
Z. K. Yildiz, S. Erel
Summary: In this study, a hybrid photoanode-based dye-sensitized solar cell (DSSC) was designed, which showed improved performance due to the modified mesoporous layer of nanoparticles and nanorods.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Construction & Building Technology
Jin-Cheng Liu, Yao Zhang
JOURNAL OF ADVANCED CONCRETE TECHNOLOGY
(2019)
Article
Chemistry, Physical
Jinhong Zhang, Jincheng Liu, Xiaoyu Wang, Jijin Mai, Wei Zhao, Zhongxiang Ding, Yanxiong Fang
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Chemistry, Physical
Wei Zhao, Jincheng Liu, Zhongxiang Ding, Jinhong Zhang, Xiaoyu Wang
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Physical
Yepeng Xiao, Jincheng Liu, Hui Wang, Chong Yang, Huicheng Cheng, Yiqiang Deng, Lihua Cheng, Yanxiong Fang
MOLECULAR CATALYSIS
(2020)
Article
Chemistry, Physical
Xiaoyu Wang, Xuyang Feng, Jincheng Liu, Zhilin Huang, Shuang Zong, Linlin Liu, Jiarong Liu, Yanxiong Fang
Summary: This paper presents a novel photo-thermo synergistic catalyst for the oxidation of cyclohexane, which shows higher catalytic performance than traditional nanowires, achieving high conversion rate and selectivity at low temperatures.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Kanxing Chen, Jincheng Liu, Zhilin Huang, Shuang Zong, Lingling Liu, Wei Tan
Summary: In this study, MnPS3 nanosheets were exfoliated and combined with Cs4W11O35 to prepare MnPS3-Cs4W11O35 composites with enhanced photocatalytic hydrogen generation activity. The composite showed improved light absorption, reduced charge recombination, and significantly enhanced hydrogen evolution rate, providing a new approach for overcoming the low photocatalytic activity of MnPS3. The photocatalytic activity of MnPS3-Cs4W11O35 remained stable after four cycles, making it a promising material for clean energy production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Zhilin Huang, Jincheng Liu, Shuang Zong, Xiaoyu Wang, Kanxing Chen, Lingling Liu, Yanxiong Fang
Summary: The study prepared g-C3N4/MoO3-x composite photocatalytic materials using oxygen vacancy MoO3-x nanorods, which exhibit strong absorption in visible and near-infrared light regions and improved photocatalytic performance through the Z-scheme charge transfer mechanism.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Shuang Zong, Jincheng Liu, Zhilin Huang, Lingling Liu, Jiarong Liu, Jia Zheng, Yanxiong Fang
Summary: In this study, Ti3C2-TiO2 composite materials with good control of size and morphology were successfully prepared via a simple method, leading to significantly enhanced photocatalytic hydrogen evolution activity. The improved H-2 production rate of the Ti3C2-TiO2 composites can be attributed to the facet control and extended light absorption effect of TiO2 nanoparticles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Lingling Liu, Jincheng Liu, Shuang Zong, Zhilin Huang, Xuyang Feng, Jia Zheng, Yanxiong Fang
Summary: This study successfully synthesized a PDI-TiO2 heterojunction by adjusting the band gap of organic-inorganic composites through chemical bonding, leading to a highly efficient photocatalytic material. The PDI-TiO2 composites exhibited a significantly higher hydrogen evolution rate compared to TiO2-NOBF4 catalyst, and also displayed stoichiometric overall water splitting performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Lingling Liu, Jincheng Liu, Shuang Zong, Zhilin Huang, Xuyang Feng, Jia Zheng, Yanxiong Fang
Summary: This study prepared nitrogen-doped TiO2 microspheres with high crystallinity and rich oxygen vacancies through a one-step solvothermal method, and applied them in photocatalytic reactions under sunlight illumination. The results showed that the formamide-assisted nitrogen-doped TiO2 microspheres exhibited higher absorption in the visible light area, slightly narrower band-gap, and slower charge recombination. Under solar light irradiation, the formamide-assisted TiO2 showed a high hydrogen evolution rate and good stability. Furthermore, the formamide-assisted TiO2 also demonstrated good photocatalytic performance under visible light irradiation.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Applied
Yihao Jiang, Zekun Tong, Xiaoning Li, Jincheng Liu, Jiaxing Wang, Ruomeng Duan, Chen Li, Shaoqiang Dong
Summary: Organic tetraazacoronene and diazaolympicene dyes TAC-dodp, DAO-dp, and DAO-do were synthesized. X-ray crystallographic analysis showed that TAC-dodp lacked pi-pi interactions, while unsymmetric DAO-dp and DAO-do formed pi-pi dimers due to their significant intramolecular dipole moments. Electrochemical experiments revealed that diazaolympicene compounds had lower LUMO energy levels compared to tetraazacoronene compounds. In solution, TAC-dodp exhibited a pink color and red-shifted absorption spectra compared to DAO-dp and DAO-do, which had a light yellow color.
Article
Chemistry, Physical
Kanxing Chen, Jincheng Liu, Zhilin Huang, Shuang Zong, Lingling Liu, Wei Tan, Yanxiong Fang
Summary: In this work, MnPS3 nanosheets-Nitrogen-doped carbon dots (NCDs) composites were fabricated, which greatly enhanced the photocatalytic hydrogen production activity. The composites showed enhanced light absorption, reduced charge recombination, and significantly improved photocatalytic activity compared to neat MnPS3 nanosheets. The type-II MnPS3-NCDs heterojunction contributed to efficient interfacial carrier transport and improved photocatalytic hydrogen generation activity. The non-toxic MnPS3 could potentially become an attractive visible-light driven photocatalyst in environmental purification and energy applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jiarong Liu, Jincheng Liu, Jia Zheng, Xuyang Feng, Shuang Zong, Lingling Liu, Yanxiong Fang
Summary: In this study, Z-scheme WO3-Co3O4 composites are synthesized for enhanced photo-thermo catalytic performance in the selective oxidation of cyclohexane. The composites show significantly higher conversion rate and selectivity compared to WO3 nanorods and Co3O4 nanoparticles. The effect of reaction temperature and proportions of WO3-Co3O4 on the catalytic performances is investigated, and Z-scheme charge transfer mode in WO3-Co3O4 composites is elucidated through energy band structure analyses and sacrificial trap experiments.
MOLECULAR CATALYSIS
(2023)
Article
Construction & Building Technology
Jin-Cheng Liu, Zhigang Zhang
JOURNAL OF BUILDING ENGINEERING
(2020)
Article
Chemistry, Physical
Xiaoyu Wang, Zhen Feng, Jincheng Liu, Zhilin Huang, Jinhong Zhang, Jijin Mai, Yanxiong Fang
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
