Article
Chemistry, Multidisciplinary
Qinghua Gong, Haiqing Wang, Wenhua Song, Bin Sun, Pei Cao, Shaonan Gu, Xuefeng Sun, Guowei Zhou
Summary: This study reports the preparation of unique hierarchical yolk/double-shelled SiOx@TiO2@C nanospheres with different voids using a sol-gel method and carbon coating. These nanospheres show remarkable lithium-ion battery performance as anodes, including high lithium storage capacity, outstanding rate capability, and stable long-term cycle life.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Jiafeng Gao, Songlin Zuo, He Liu, Qiwen Jiang, Chenhao Wang, Huanhuan Yin, Ziqi Wang, Jie Wang
Summary: In this study, an interconnected hollow Si-C nanospheres/graphite composite was fabricated to improve the performance of Si anode. The composite anode exhibited high specific capacity, excellent rate performance, and cycling stability, attributed to the high electrical conductivity and buffering effect of graphite, as well as the good compatibility and uniform distribution of hollow Si-C nanospheres and graphite.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Electrochemistry
Kai Chen, Yi Tan, Yuan Gao, Yao Yao Chen
Summary: The ultrafine TiO2 nanoparticles are encapsulated in SiO2 nanospheres using the St center dot Ober method, forming (SiOx/TiO2) @CN composite with TiO2 crystalline transformation and carbon coating. The composite has a conductivity network and nitrogen elements incorporated in the carbon layer, enhancing its electrical conductivity. The (SiOx/TiO2) @CN composite exhibits outstanding structural stability, high specific cycle capacity, and excellent rate performance. The research provides a significant reference for future modifications of SiO2-based anode materials.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Environmental
Lei Wang, Yan Nie, Xianan Zhang, Guanhua Zhang, Qinghua Lu, Huigao Duan
Summary: A novel strategy was developed to prepare pomegranate-inspired nanospheres in which ultrafine Zn2Ti3O8/TiO2 nanoparticles are embedded in a hierarchical carbon framework (Zn2Ti3O8/TiO2@C). This structure effectively reduces Li+ diffusion distance, relieves volume expansion, and induces additional pseudocapacitive effect, leading to a high capacity and remarkable cycling life of the Zn2Ti3O8/TiO2@C electrode. This work provides beneficial enlightenment for novel material structure design and accelerates the application of Zn2Ti3O8 in lithium-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Electrochemistry
Wencai Zhao, Yongfeng Yuan, Pingfan Du, Min Zhu, Simin Yin, Shaoyi Guo
Summary: The SnO2/Sn@TiO2@C composite prepared via one-pot hydrothermal reaction exhibits high discharge capacity and stability in lithium-ion batteries, attributed to the unique multi-shelled hollow nanosphere structure, coating of TiO2 and carbon layer.
Article
Electrochemistry
Guanghui Li, Shiyue Cao, Likang Fu, Shuyun Wan, Qiming Liu
Summary: TiO2/C/FeS2 composite prepared via a two-step hydrothermal strategy exhibits high specific capacity and cycling performance as an anode material for lithium ion batteries.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Hang Fu, Chonghua Shi, Jiajin Nie, Jing Wang, Shaowei Yao
Summary: In this study, core-shell Bi@C structure was successfully synthesized using Bi2O3 nanospheres wrapped in micron-sized carbon spheres. This composite material showed excellent cycling stability as an anode for lithium-ion batteries, with specific capacities of approximately 518 and 378 mAh g(-1) at current densities of 100 and 500 mA g(-1), respectively. The synthetic concept of this composite provides valuable insights for further research on anode materials for lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Hechun Wei, Wei Huang, Ketong Luo, Yanqun Huang, Shengkui Zhong, Dongliang Yan
Summary: Hollow Ni0.75Zn0.25Fe2O4 nanospheres with PVP-assisted hydrothermal strategy were successfully fabricated and displayed good dispersibility and high specific surface area. The nanospheres also demonstrated satisfactory cycle life and rate performance as a lithium ion battery negative electrode.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Electrochemistry
Anna Pidluzhna
Summary: This study investigates the electrochemical behavior of lithium elements using composite electrodes made from nano TiO2, polypropylene as a binder material, and carbon black as a conductive additive. Material characterization was done using scanning electron microscopy and X-ray photoelectron spectroscopy. The cyclic voltammetric tests were conducted to study the electrochemical behavior of nano TiO2 composite electrodes and the electrochemical properties of these electrodes were described.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Jiao Li, Mengya Wang, Jianguo Huang
Summary: A porous SnS/C composite with a unique three-dimensional structure and fibrous carbon conductive matrix was synthesized and showed outstanding electrochemical performance as an anodic material in lithium-ion batteries. The composite facilitated electrode-electrolyte contact, inhibited particle aggregation, and promoted electron transfer and lithium-ion diffusion during charge/discharge processes, leading to high specific capacity, long cycle life, and good rate capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yu Xin, Shuqing Nie, Shi Pan, Chang Miao, Haoyi Mou, Minyue Wen, Wei Xiao
Summary: SnSb and TiO2 nanoparticles are successfully embedded into carbon nanofibers through electrospinning and calcination treatments. The presence of TiO2 is crucial for constructing the well-designed fiber structure, and the synergistic effects of SnSb, TiO2, and CNFs contribute to enhanced lithium storage capacity and cycling performance. The composite electrodes show promising potential for practical applications in energy storage.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Fuhua Zhao, Xiaodong Li, Jianjiang He, Kun Wang, Changshui Huang
Summary: Carbon-based hollow nanostructures, such as graphdiyne hollow nano spheres (GDY-HNSs) prepared through solvothermal synthesis, offer promising potential for energy-related fields due to their hierarchical structures, large specific surface areas, and appropriate hollow interiors. When used as anodes in lithium-ion batteries, GDY-HNSs exhibit enhanced electrochemical properties, including higher reversible specific capacity, improved rate capacity, and cycling performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Zeping Zhou, Feng Chen, Zhen Jiang, Tong Liu, Yanpei Fei, Tairong Kuang, Mingqiang Zhong, Xianhu Liu, Shuang Song
Summary: A method of growing layered MoS2 nanosheets on polyphosphazene microspheres was reported, showing uniform growth and high stable electrochemical performance. The obtained hollow carbon microspheres exhibited higher electrical conductivity and stronger structural stability, making them a promising MoS2-based anode material for Li-ion battery applications.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Jiying Li, Jiawei Long, Tianli Han, Xirong Lin, Bai Sun, Shuguang Zhu, Jinjin Li, Jinyun Liu
Summary: A hierarchical SnO2@Ni6MnO8 composite as a Li-ion battery anode is developed to enhance discharge capacity and stability, achieving high Coulombic efficiency and stable rate performance.
Article
Chemistry, Physical
Y. F. Yuan, W. C. Zhao, L. Chen, G. S. Cai, S. Y. Guo
Summary: A universal method was used to synthesize CoO nanocrystalline-assembled hierarchical mesoporous nanospheres, which exhibited excellent performance as the anode material for lithium-ion batteries, with high reversible capacity, stable cycling performance, and good rate capability.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Zhigang Li, Jiteng Li, Weike Wang, Qijie Yan, Yongrui Zhou, Luping Zhu, Bingqiang Cao, Bingqing Wei
Summary: The discovery of super-semiconductors based on metallic bi-layer shell arrays provides an opportunity to achieve ultra-low-power consumption semiconductor devices. For example, p-n junction diodes based on super-semiconducting nanostructured Ag/Al arrays have achieved near zero-threshold voltage and low power consumption. The high breakdown field of these diodes allows access to ultra-low-power semiconducting transistors, integrated circuits, chips, etc.
ADVANCED MATERIALS
(2023)
Article
Engineering, Chemical
Wei Li, Ting Luo, Changxu Zhu, Bin Zhang, Bingqiang Cao
Summary: A simple and green in situ laser irradiation method was proposed to construct a two-dimensional/reduced graphene oxide (rGO) nanosheets and zero-dimensional (0D) hexagonal boron nitride (h-BN) nanosphere 2D/0D nanocomposite. The composite nanoparticles showed good dispersion in lubricating oil and exhibited significantly improved tribological performance.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Optics
Fan Xu, Haoming Wei, Yangqing Wu, Yu Zhou, Jinkai Li, Bingqiang Cao
Summary: CsPbCl3 perovskite films were successfully grown on quartz substrates by RF-magnetron sputtering method, and their photoluminescence properties were studied over a temperature range of 10 K to 300 K. A near bandgap emission peak (around 410 nm) was observed in the violet region with a few nanoseconds lifetime at room temperature. Surprisingly, this peak exhibited a non-monotonic shift with increasing temperature, unlike traditional semiconductors or the same group of perovskites. The origin and temperature-dependent shift of this peak can be well explained by the Bose-Einstein two-oscillator model, which takes into account the interaction between electrons and phonons.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Physical
Shuhua Yang, Yanwei Cui, Guangxu Yang, Songfang Zhao, Jieqiang Wang, Degang Zhao, Chao Yang, Xiutong Wang, Bingqiang Cao
Summary: In this study, a hierarchical porous carbon induced by ZnCl2 from corncob cellulose is developed through a single-step activation process. The material exhibits suitable micropores for high energy storage and sufficient mesopores for high-rate performance, thereby improving the performance of zinc-ion hybrid supercapacitors. The optimized hierarchical porous carbon shows high specific capacity, high energy density, and good cycling stability. The assembled quasi-solid-state flexible hybrid supercapacitor also demonstrates high specific capacity, satisfactory mechanical properties, and promising application prospects.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Inorganic & Nuclear
Jia Dong, Xu Feng, Jinbiao Jia, Beibei Shi, Yangqing Wu, Bingqiang Cao
Summary: In this study, a stoichiometric CeO2 film was proposed as an annealing-free electron transport layer for efficient perovskite solar cells. The CeO2 nanocrystals were prepared via a solvothermal method and dispersed in cyclohexane to form a stable solution. The CeO2 electron transport layer was then fabricated by spin-coating method without any annealing or drying process. Optimization of the solvothermal reaction time resulted in CeO2 nanocrystals with excellent electron extraction performance. An efficiency of 16.53% was achieved after introducing a C60 interlayer.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shuo Song, Yuchen Lv, Bingqiang Cao, Wenzhi Wang
Summary: A method for synthesizing CsPbX3 quantum dots (PQDs) with high water stability using 5-Bromovaleric acid (BVA) and oleylamine (OLA) as surface ligands is proposed. The CsPbX3 PQDs with hydrophobic shells provided by carboxyl ligands from BVA and long chain amines from OLA can be directly synthesized in water. The obtained PQDs exhibit high luminescence intensity and photoluminescence quantum yield even after being dispersed in water for several days, maintaining a luminescence peak at 518 nm. CsPbCl3 and CsPbI3 PQDs synthesized directly in water using this method also show high water stability.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Engineering, Manufacturing
Hongyin Pan, Lihao Zhou, Wei Zheng, Xianghong Liu, Jun Zhang, Nicola Pinna
Summary: Atomic layer deposition (ALD) is a versatile technique used to deposit metals and metal oxide sensing materials at the atomic scale for improved sensor functions. This article reviews the use of ALD in the preparation of metals and metal oxide semiconductor (MOS) heterostructures for gas sensing applications. The gas sensing performances of different MOS-based heterostructures synthesized by ALD are carefully analyzed and discussed. Further developments and challenges faced by ALD in synthesizing MOS gas sensing materials are also discussed.
INTERNATIONAL JOURNAL OF EXTREME MANUFACTURING
(2023)
Article
Physics, Applied
Shanlin Li, Houshan Mei, Yixin Song, Jun Zhang, Xianghong Liu
Summary: Transition metal modified carbon materials hold great potential in Li-S batteries, and optimizing the electronic interaction between metal and carbon support is crucial. In this study, a unique double G/N-carbon layer structure of G/FeCo@N-C was prepared, and the mechanism of capacity attenuation was explained using in situ Raman spectroscopy.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Yinhua Hu, Xiao Chang, Jun Zhang, Xianghong Liu
Summary: In this study, violet phosphorus nanosheets were prepared through liquid-phase exfoliation and used to fabricate a highly sensitive gas sensor capable of detecting toxic chemical DMA at room temperature. The sensing mechanism was elucidated through density functional theory calculations.
APPLIED PHYSICS LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Shunfan Zhao, Ying Yu, Chang Liu, Fan Xu, Jinkai Li, Bingqiang Cao
Summary: This paper develops a substitutional doping strategy using sodium (Na) to improve the photoluminescence quantum yield (PLQY) and air stability of copper halide cesium compound semiconductors. Detailed microstructure characterizations confirm that the Na+ doping effectively stabilizes the Cu+ chemical state and reduces defect-related nonradiative recombination.
ACS APPLIED NANO MATERIALS
(2023)
Article
Physics, Applied
Luping Zhu, Xueming Cheng, Aiwei Wang, Yansu Shan, Xuelei Cao, Bingqiang Cao
Summary: In this study, high-quality CsPbBr3 epitaxial films were grown using pulsed laser deposition, and the effect of substrate temperature on film quality was investigated. The resulting epitaxial perovskite thin films displayed low dark current and high responsivity, external quantum efficiency, and detectivity, making them important for the study of semiconductor devices.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Analytical
Shilei Fan, Guocai Lu, Yinhua Hu, Wei Zheng, Xianghong Liu, Jun Zhang
Summary: This study demonstrates the fabrication of a flexible gas sensor based on few-layer In2Se3 nanosheets synthesized by CVD, which shows high sensitivity and fast response/recovery speed to NO2 at room temperature. The piezoelectric effect induced by mechanical deformation significantly improves the sensor response, attributed to the coupled effect of piezoelectricity and adsorption-induced charge transfer.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Qiumei Wang, Chenyu Wang, Xiao Chang, Xianghong Liu, Jun Zhang
Summary: By depositing Pd and Rh metals on porous In2O3 thin films using ALD technology, high and fast response to NO2 at room temperature was achieved. The Pd/Rh catalysts greatly improved the interaction and charge transfer between In2O3 and NO2.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Qiumei Wang, Lihao Zhou, Shaobo Li, Xiao Chang, Xianghong Liu, Jun Zhang
Summary: In this study, In2O3/SnO2 heterostructures were designed using atomic layer deposition (ALD), which regulated the energy band structure and enhanced the electron transfer, resulting in improved adsorption of target gases. The sensors based on In2O3/SnO2 demonstrated outstanding performance at room temperature, with a response of 2900 to 10 ppm NO2 and a detection limit of 61 ppb. Density functional theory (DFT) calculations showed significant enhancement in charge transfer and interaction energy between In2O3/SnO2 and NO2.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Songchen Zhang, Lihao Zhou, Yinhua Hu, Xianghong Liu, Jun Zhang
Summary: Fabrication of ZnO/α-Fe2O3 heterostructures was successfully achieved, and their sensing properties towards NO2 were systematically investigated. The ZnO/α-Fe2O3 sensor exhibited superior selectivity, repeatability, and stability for NO2 detection at 175 degrees C, as well as short response-recovery time and low detection limit.
SENSORS AND ACTUATORS B-CHEMICAL
(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)
