Review
Nanoscience & Nanotechnology
Xianyun Gong, Niyamat I. Beedri, Manal F. Abou Taleb, Mohamed M. Ibrahim, Suhail A. A. R. Sayyed, Habib M. Pathan, Hua Hou, Hassan Algadi, Sunita Salunke-Gawali, Yong Ma
Summary: This review discusses the application of Nb2O5 in the fabrication of DSSCs, highlighting its advantages over TiO2 and ZnO. Detailed examples are provided, and the challenges and potential approaches are also discussed.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Jung-Chuan Chou, Ruei-Hong Syu, Po-Hui Yang, Po-Yu Kuo, Yu-Hsun Nien, Chih-Hsien Lai, Po-Feng Chen, Yi-Ting Wu, Shang-Wen Zhuang
Summary: Dye-sensitized solar cells (DSSCs) have great potential in solar power generation due to their advantages of easy fabrication and low fabrication cost. To reduce the recombination effect, zinc oxide (ZnO) blocking layers (ZBLs) were introduced on the photosensitive layer. This led to higher short-circuit current density (J(SC)) and photovoltaic conversion efficiency (PCE) compared to DSSCs without ZBL.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Chemistry, Physical
Hannes Michaels, Marina Freitag
Summary: This study evaluates the TiO2 blocking layer in dye-sensitized solar cells using transient photovoltage and electrochemical impedance analysis, and demonstrates a feasible method for assessing the performance of TiO2 blocking layers.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Multidisciplinary Sciences
Ghazi Aman Nowsherwan, Muhammad Aamir Iqbal, Sajid Ur Rehman, Aurang Zaib, Muhammad Irfan Sadiq, Muhammad Ammar Dogar, Muhammad Azhar, Siti Sarah Maidin, Syed Sajjad Hussain, Kareem Morsy, Jeong Ryeol Choi
Summary: The increase in global energy consumption has necessitated the exploration of alternative energy sources, particularly those harnessing photon energy. One important solution is the development of cost-effective and low-loss solar cells. The study investigates the performance of a dye-sensitized solar cell based on ZnPC:PC70BM and identifies key parameters for improving its efficiency.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Hamed Azari Najafabadi, Morteza Ahmadi, Majid Ghanaatshoar
Summary: The study investigated the efficiency enhancement of DSSCs using BaSnO3 thin film as BL, with 50nm thickness being the optimal value. The efficiency can be improved from 2.6% to 3.9% due to decreased electron recombination and increased electron lifetime at the FTO/BSO interface, resulting in better photovoltaic performance.
Article
Engineering, Electrical & Electronic
Rajat Biswas, Suman Chatterjee
Summary: Effective suppression of dye aggregation and improved device performance were achieved in dye sensitized solar cells by using CDCA as a dye co-adsorbent and adding a compact ZnO blocking layer. The addition of CDCA at an optimized concentration of 8 mM increased the power conversion efficiency to 1.00% and further enhancement to 1.22% was observed with the combination of 8 mM CDCA and the ZnO blocking layer. Electrochemical impedance spectroscopic analysis confirmed the improved electron lifetime and reduced electron recombination with the addition of CDCA and ZnO.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Computer Science, Information Systems
Jung-Chuan Chou, Po-Feng Chen, Po-Hui Yang, Chih-Hsien Lai, Po-Yu Kuo, Yu-Hsun Nien, Shang-Wen Zhuang, Ruei-Hong Syu, Yu-Han Huang
Summary: The study demonstrated that using a TiO2 blocking layer can improve the photoelectric conversion efficiency and performance of DSSCs, showing better performance in low light conditions.
Article
Materials Science, Multidisciplinary
Tian-Chiuan Wu, Wei-Ming Huang, Teen-Hang Meen, Jenn-Kai Tsai
Summary: A simple and low-cost fabrication method of DSSCs was developed to improve the structure and performance of the photoanode. Four different TiO2 layers were adopted to fabricate photoanodes, and the use of a pressed TiO2 layer resulted in the highest power conversion efficiency.
Article
Materials Science, Multidisciplinary
Fatima Santos, Dzmitry Ivanou, Adelio Mendes
Summary: Dye-sensitized solar cells (DSSCs) have unique features such as colorfulness, potential transparency, flexibility, and low cost, suitable for indoor and outdoor applications. However, compared to conventional DSSCs, MDSSCs have lower power conversion efficiencies.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
S. Vibavakumar, K. D. Nisha, V. S. Manikandan, J. Archana, M. Navaneethan, S. Harish
Summary: This work aims to improve the photovoltaic parameters in DSSCs by introducing a bilayer photoanode composed of Nb2O5 and TiO2. The microstructural, crystalline, and morphological properties of the Nb2O5/TiO2 bilayer were analyzed. The charge transfer processes and electron behavior in the bilayer photoanode were investigated, showing significantly lower charge transfer resistance and improved electron lifetime.
Article
Chemistry, Physical
Leon R. Devereux, Alvaro Vazquez-Mayagoitia, Michael G. Sternberg, Jacqueline M. Cole
Summary: Adopting a data-driven approach, successful molecular-scale predictions of light-harvesting chromophores in dye-sensitized solar cells (DSCs) have been achieved. However, a molecular-to-macroscopic device prediction methodology for DSC dyes would greatly advance the field. This study presents a computational pipeline that predicts device-performance parameters of DSCs with varying dye combinations.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
V. Gowthambabu, Mrunal Deshpande, R. Govindaraj, V. K. Nithesh Krishna, M. Leela Charumathi, J. Manish Kumar, M. S. Dhilip Vignesh, R. Isaac Daniel, P. Ramasamy
Summary: This study synthesized highly phase pure anatase TiO2 microspheres using a low-cost hydrothermal route, characterized them using various analysis methods, and fabricated dye-sensitized solar cells. The results showed that the DSSC composed of prepared TiO2 microspheres exhibited a higher power conversion efficiency compared to commercial P25.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Green & Sustainable Science & Technology
Xiaodan Zhang, Lei Lei, Xinpeng Wang, Degao Wang
Summary: The collection of solar energy in chemical bonds via dye-sensitized photoelectrosynthesis cells (DSPECs) is a reliable solution. Atomic layer deposition (ALD) was used to introduce ultrathin blocking layers (BLs) between a mesoporous TiO2 membrane and fluorine-doped tin oxide (FTO), resulting in improved water oxidation performance. The ALD-prepared layers greatly hindered the recombination of photogenerated electron-hole pairs in the TiO2-based photoanode, enhancing water oxidation efficiency. This study provides critical backing for effective water splitting using molecular films prepared by the ALD technique.
Article
Green & Sustainable Science & Technology
M. Shobana, P. Balraju, P. Senthil Kumar, N. Muthukumarasamy, R. Yuvakkumar, Dhayalan Velauthapillai
Summary: In this study, the photoanodes in dye-sensitized solar cells were improved by using two different morphologies, one-dimensional hydrothermally synthesized rutile nanorods and nanoparticles of TiO2, to increase the short circuit current density of the device. The combination of both structures resulted in high Jsc by providing a better pathway for electron transportation and efficient light absorption. The crystalline nature of the synthesized bilayer film was confirmed, and UV-Vis and photoluminescence spectroscopy were used to study the absorption and emission properties of the samples. The solar cells with the nanorods/nanoparticles bilayer showed the highest efficiency.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(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
Energy & Fuels
Bangxin Li, John T. S. Irvine, Jiupai Ni, Chengsheng Ni
Summary: The study demonstrates that adding Ce and Ni elements in solid oxide fuel cells can improve performance under ethanol fuel, reduce coke deposition issues, making the fuel cell more stable and efficient.
Article
Environmental Sciences
Chong Wang, Tianai Zhang, Lifeng Yin, Chengsheng Ni, JiuPai Ni, Li-An Hou
Summary: This study demonstrated the electrochemical degradation of PFOA using Ti3+ self-doping TiO2 nanotube arrays (Ti3+/TiO2-NTA) anode, showing high efficiency and low energy consumption compared to traditional methods. The possible degradation mechanism of PFOA involved enhanced oxidation through direct electron transfer on the anode, leading to rapid mineralization into CO2 and F-.
Article
Agronomy
Lei Liu, Wenxuan Lu, Zhongyi Li, Chaofu Wei, Deti Xie, Jiupai Ni, Chengsheng Ni
Summary: The study shows that hydrothermally treated soils can produce light-emitting carbon dots that can indicate the content of soil organic matter. The research explores the correlation between light absorbance and photoluminescence of carbon dots with soil organic matter, demonstrating a potential method for monitoring SOM.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2022)
Article
Green & Sustainable Science & Technology
Shaojun Tan, Deti Xie, Jiupai Ni, Fangxin Chen, Chengsheng Ni, Jing'an Shao, Jinliang Wang, Dun Zhu, Sheng Wang, Ping Lei, Jingyi Wang, Jianfeng Xu
Summary: In this study, the Qijiang River Basin in the Three Gorges Reservoir area was used to identify the source/sink pattern of nonpoint source pollution (NPSP). The results showed that the source landscape mainly distributed in the northern hilly area, while the sink landscape mainly concentrated in the southern mountain area. There was a significant correlation between soil erosion and the landscape index, and a certain relationship between water quality and the landscape index.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Plant Sciences
Hikmatullah Obaid, Ram Kumar Shrestha, Dunyi Liu, Nader Saad Elsayed, Jiupai Ni, Chengsheng Ni
Summary: This review discusses management approaches for zinc fertilization and breeding efforts in producing high-quality maize for a healthy human diet. Both agronomic and plant breeding methods show promising results in combating zinc deficiency and improving zinc absorption in the human body.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2022)
Article
Engineering, Environmental
Debo He, Wenji Ruan, Jibiao Li, Jiupai Ni, Chengsheng Ni
Summary: The large-scale integration of intermittent renewable energies into the power grid can reduce CO2 emissions from fossil fuel combustion, but energy storage techniques are required to balance energy production and demand. The electrolysis of CO2, converting electricity into chemicals/fuels, offers a sustainable energy storage and CO2 reduction method. This study investigates the use of a Mo-doped ferrite perovskite as a cathode material in a solid oxide electrolysis cell (SOEC) for the direct electrolysis of CO2 at high temperatures. The Mo-doped cathode shows higher current density during CO2 electrolysis compared to the undoped cathode, and the presence of Mo-doping leads to the production of Ruddlesden-Popper phase and Fe-Mo-O oxides. However, the Mo-doped cathode exhibits degradation under high bias, suggesting the need for further optimization.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Yanshan Wan, Jibiao Li, Jiupai Ni, Chong Wang, Chengsheng Ni, Hong Chen
Summary: This study demonstrates that different crystal facets have significant effects on the catalytic performance in the gas-phase degradation of NO. ZnO crystals with lower flat-band energy and enhanced (0002) facet show better performance in the photoelectrochemical water-oxidation, while those with exposed (101(-)1) facet have higher affinity to NO molecules. Additionally, the oxygen vacancies play a minor role in the photocatalytic oxidation of NO.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Physics, Applied
Qimiao Zeng, Jiupai Ni, Davide Mariotti, Lanying Lu, Hong Chen, Chengsheng Ni
Summary: The removal efficiency and selectivity of nitrate in PCN photocatalyst can be improved through DBD plasma treatment, which can enhance the photogenerated charge separation efficiency of PCN and the capacity of NO(x) abatement.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Qimiao Zeng, Jingwen Chen, Yanshan Wan, Jiupai Ni, Chengsheng Ni, Hong Chen
Summary: In this study, TiO2 nanoparticles were prepared on porous metal foams, which showed enhanced efficiency and stability for photocatalytic NO abatement. These findings provide guidance for the design of practical photocatalysts.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Engineering, Chemical
Shenglin Liu, Wu Menglin, Lanying Lu, Jiupai Ni, Chengsheng Ni, John T. S. Irvine
Summary: The perovskite La0.5Ba0.5CuxFe1-xO3-delta was studied as a cathode for a protonic solid oxide fuel cell (H-SOFC), showing potential for improved performance. The introduction of Fe in the composition enhanced certain conductivity parameters but reduced proton conductivity, while mixed cations in La0.5Ba0.5Cu0.5Fe0.5O3-delta achieved a low thermal expansion coefficient.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Hikmatullah Obaid, Lihua Ma, Saad Elsayed Nader, Mohammad Hanif Hashimi, Sharifullah Sharifi, Hidayatullah Kakar, Jiupai Ni, Chengsheng Ni
Summary: The study analyzed the risks of bioaccumulation of heavy metals in food through agricultural irrigation using wastewater. Samples of water, soil, and plants were collected from wastewater-irrigated sites in Kandahar, Afghanistan and compared with a freshwater-irrigated site. The results showed higher concentrations of heavy metals, especially lead, in soil and crops from the wastewater-irrigated sites, with the Pb pollution attributed to minerals in the area and high levels in underground water. This study highlights the importance of understanding and managing heavy metal risks in irrigation practices in Afghanistan.
ACS EARTH AND SPACE CHEMISTRY
(2023)
Article
Energy & Fuels
Xuelin Zhang, Jiupai Ni, Chengsheng Ni
Summary: In this study, MnFeCr1-x Cox O4 spinel oxides with a conductivity of approximately 0.1 S cm(-1) were used as the fuel electrode of an SOEC. It was found that the MFCC5 and MFCC20 partially decomposed during water electrolysis, forming a metal/oxide interface that enhanced the electrocatalytic performance and durability of the cell. MFCC5 achieved a high current density of 1550 mA cm(-2) at 1.6 V and maintained a current density of about 600 mA cm(-2) after a 150-hour durability test at 1.3 V at 800 °C. This research also demonstrated the feasibility of in situ exsolution of metals from reducible cations in designing spinel-type cathodes for SOECs.
Article
Chemistry, Inorganic & Nuclear
Xiaojing Liu, Jiupai Ni, Chengsheng Ni
Summary: This study evaluates non-perovskite oxides as cathodes for CO2 electrolysis and finds that molybdenum doping can enhance the electrochemical performance by forming oxygen-deficient rutile phase.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Lanying Lu, Debo He, Rong Fang, Chengsheng Ni, John T. S. Irvine
Summary: The valorization of CO2 greenhouse gas is important in decarbonization using renewable energies. Intermediate temperature solid oxide electrolysis cells (SOEC) can activate the strong C-O bond in CO2 for the production of CO and decrease electricity consumption. In this study, a composite oxide/metal cathode with ceria/Co doping on stable chromite is designed for direct CO2 electrolysis. The unique heterojunction structure formed by ceria exsolution and Co0 outgrowth from the B site enables efficient CO2 activation and high electrochemical performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Environmental Sciences
Jingwen Chen, Menglin Wu, Jiupai Ni, Chengsheng Ni
Summary: Photocatalytic oxidation of NOx using visible light is an environmentally friendly method. This study found that Cs3Bi2-xPbxBr9-x (x = 0.0443), with Br vacancy (V-Br) induced by Pb2+ doping, exhibits significant NO oxidation efficiency under visible light. Moreover, the di-azo coupling was found to passivate the activation of NO on V-Br.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)
