Article
Nanoscience & Nanotechnology
Mariafrancesca Baratta, Teresa Fina Mastropietro, Rosaria Bruno, Antonio Tursi, Cristina Negro, Jesus Ferrando-Soria, Alexander Mashin, Aleksey Nezhdanov, Fiore P. Nicoletta, Giovanni De Filpo, Emilio Pardo, Donatella Armentano
Summary: A hybrid composite material consisting of eco-friendly single-walled carbon nanotube buckypaper (SWCNT-BP) and multivariate amino acid-based metal-organic framework (MTV-MOF) has been developed for the efficient and selective removal of lead ions from wastewater. The composite material showed enhanced selectivity and adsorption capacity compared to SWCNT-BP alone, making it a promising adsorbent for lead decontamination in water treatment plants.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Liantao Xin, Chen Ma, Qianru Wu, Shaokang Liu, Linhai Li, Xiuyun Zhang, Liu Qian, Maoshuai He, Dong Li, Fangqian Han, Shulan Hao, Lihu Feng, Yahan Li, Huaping Liu, Lili Zhang, Chang Liu, Jin Zhang
Summary: The composition of catalyst used in chemical vapor deposition greatly influences the chirality structure of single-walled carbon nanotubes (SWNTs). In this study, a porous magnesia supported manganese-rhenium (MnRe/MgO) catalyst was developed for chirality-selective synthesis of SWNTs. Detailed characterizations revealed that (6,5) tubes with a selectivity higher than 70% were successfully grown from the Re-rich MnRe/MgO catalyst. The formation of sigma phase, an intermetallic compound, was found to be crucial for the dominant synthesis of (6,5) SWNTs.
Article
Nanoscience & Nanotechnology
Zhijun Chen, Yutao Cui, Lirong Liang, Hanfu Wang, Wei Xu, Qichun Zhang, Guangming Chen
Summary: This study prepares a flexible composite film by covalently bonding single-walled carbon nanotubes (SWCNTs) with porous metal-organic frameworks (MOFs), demonstrating good flexibility and p-type thermoelectric characteristics. Furthermore, a flexible thermoelectric device connected by multiple films in series generates high open-circuit voltage and maximum power.
MATERIALS TODAY NANO
(2022)
Article
Chemistry, Physical
Xue Zhao, Ningfei Gao, Zeyao Zhang, Qidong Liu, Jian Sheng, Yijie Hu, Ruoming Li, Haitao Xu, Lianmao Peng, Yan Li
Summary: The selective growth of semiconducting single-walled carbon nanotubes (s-SWCNTs) is achieved using CO as both catalyst reductant and carbon feedstock, along with bimetallic catalysts and quartz substrates. The CO-based process demonstrates feasibility and universality, resulting in horizontally aligned s-SWCNT arrays with high content (>97%) and potential for scalable fabrication of CNT-based devices.
Article
Chemistry, Multidisciplinary
Hongjie Zhang, Wenhuai Zhuge, Feng Yang, Lixing Kang, Shuchen Zhang, Ran Du, Jinjie Qian, Zhi Yang, Yagang Yao, Pan Li, Yue Hu, Jin Zhang
Summary: The article introduces a temperature-mediated method to achieve high-density and specific diameter SWNT arrays. This method can increase the density of the array and control the diameter by reactivating poisoned catalysts to continue the growth of SWNTs. This provides a possibility for the integration of SWNTs into nanodevices.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Brendan Mirka, Nicole A. Rice, Phillip Williams, Mathieu N. Tousignant, Nicholas T. Boileau, William J. Bodnaryk, Darryl Fong, Alex Adronov, Benoit H. Lessard
Summary: This study demonstrates that excess unbound polymer during semiconductor film fabrication is not necessarily detrimental to device performance, and removal of such polymers may not always be necessary. Simple solvent rinsing can reduce this loss. Additionally, a Machine Learning algorithm can be utilized for analyzing the surface characteristics of SWNT films.
Article
Environmental Sciences
Guobin Song, Anqi Li, Yawei Shi, Wanran Li, Haonan Wang, Chunchao Wang, Ruijuan Li, Guanghui Ding
Summary: In this study, five magnetic multi-walled carbon nanotubes with different diameters were prepared and their performance in removing methylene blue from water was investigated. The surface of these nanotubes was decorated with Fe3O4 nanoparticles, making them superparamagnetic. The results showed promising potential for these nanotubes as adsorbents for dye removal in wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Shulan Hao, Liu Qian, Qianru Wu, Dong Li, Fangqian Han, Lihu Feng, Liantao Xin, Tao Yang, Shiying Wang, Jin Zhang, Maoshuai He
Summary: This study successfully synthesized high-quality single-walled carbon nanotubes (SWNTs) on layered double hydroxides (LDHs) containing Fe and FeCo using CO chemical vapor deposition (CVD). The effects of temperature and catalyst composition on the diameter and chirality distributions of SWNTs were investigated. It was found that subnanometer SWNTs were produced by both catalysts at low temperatures. The (6, 5) SWNTs were synthesized from LDHs containing bimetallic FeCo at 600 degrees C, and the chirality distribution was further narrowed by a two-phase extraction method.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Mathematics, Interdisciplinary Applications
Zhen Wang, Weipeng Hu
Summary: This paper investigates the resonance behavior of carbon nanotube sensors under various perturbations, exploring the dynamic stability and complex behavior of nonlinear systems in nanotube devices. Theoretical analysis and numerical simulations are used to verify the research results.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Chemistry, Physical
Chenmaya Xia, Daqi Zhang, Henan Li, Sheng Li, Haoming Liu, Li Ding, Xiyan Liu, Min Lyu, Ruoming Li, Juan Yang, Yan Li
Summary: SWNTs can be used to construct reusable SERS substrates with single molecule sensitivity and preservation of intrinsic properties, utilizing polyhedral gold nanocrystals to create effective hot spots. Using SWNTs to build SERS substrates may become a powerful strategy in various single molecule studies.
Article
Environmental Sciences
Anshul Sharma, Vineet Kumar Rathore, Mousumi Chakraborty
Summary: This study presents the synthesis and use of a novel composite adsorbent, UiO-66/MWCNT, for the treatment of diclofenac sodium in waste water. The adsorbent was successfully synthesized using hydrothermal method with Zr metal and multi-walled carbon nanotube. The experimental results showed that UiO-66/MWCNT had a high adsorption capacity for diclofenac sodium.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Marianna V. V. Kharlamova, Christian Kramberger
Summary: This paper explores the growth mechanism, structure, growth processes, growth kinetics, and optical, vibronic and electronic properties of metallocene-filled single-walled carbon nanotubes (SWCNTs). The procedures used to fill the nanotubes are described. The doping effects on metallicity-mixed and sorted SWCNTs filled with metallocenes are investigated through various spectroscopy techniques. The modification of the electronic properties of filled SWCNTs and the applications of metallocene-filled SWCNTs in various fields are discussed.
Review
Chemistry, Multidisciplinary
Jianping Zou, Qing Zhang
Summary: Single-walled carbon nanotubes (SWCNTs) are considered a promising electronic material for the future of electronics, with sub-10 nm SWCNT-field effect transistors (FETs) outperforming Si-based FETs. Recent advances in SWCNT electronics focus on fundamental electronic structures, carrier transport mechanisms, and metal/SWCNT contact properties, highlighting subthreshold switching properties for low-power device operations. Challenges and prospects for future SWCNT-based electronics include material preparation, device fabrication, and large-scale ICs integration.
Article
Biochemistry & Molecular Biology
Matthew M. Noor, Alinne L. R. Santana-Pereira, Mark R. Liles, Virginia A. Davis
Summary: Researchers are interested in whether nanomaterials with outstanding mechanical or electrical properties also possess antibacterial properties. The study showed that the purported antibacterial activity of SWNTs may only be effective against bacteria that are sensitized by the dispersant.
Article
Chemistry, Physical
Fangqian Han, Liu Qian, Qianru Wu, Dong Li, Shulan Hao, Lihu Feng, Liantao Xin, Tao Yang, Jin Zhang, Maoshuai He
Summary: A SiC supported iron (Fe-SiC) catalyst was developed for efficient growth of carbon nanotubes. The reducibility of the catalyst was enhanced by physical contact with oxide support, promoting the formation of active Fe nanoparticles for subsequent carbon nanotube synthesis.
Article
Materials Science, Ceramics
Zaheer Ahmed Ujjan, Muhammad Ali Bhatti, Aqeel Ahmed Shah, Aneela Tahira, Nek Muhammad Shaikh, Shusheel Kumar, Abdul Qayoom Mugheri, Shymaa S. Medany, Ayman Nafady, Fahad Alnjiman, Melanie Emo, Brigitte Vigolo, Zafar Hussain Ibupoto
Summary: In this study, sulfide and chloride ions were successfully doped into ZnO through hydrothermal method. The doped ZnO nanostructures showed no significant change in morphology, retaining the wurtzite crystal structure with a red shift in XRD results. The successful doping of sulfide and chloride ions was confirmed by elemental analysis. Importantly, the optical band gap of ZnO was reduced upon doping, leading to enhanced photocatalytic properties. The doped ZnO photocatalyst achieved a high photo-degradation efficiency of methylene blue.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Zafar Hussain Ibupoto, Aneela Tahira, Aqeel Ahmed Shah, Umair Aftab, Muhammad Yameen Solangi, Jaleel Ahmed Leghari, Abdul Hanan Samoon, Adeel Liaquat Bhatti, Muhammad Ali Bhatti, Raffaello Mazzaro, Vittorio Morandi, Muhammad Ishaq Abro, Ayman Nafady, Abdullah M. Al-Enizi, Melanie Emo, Brigitte Vigolo
Summary: This study presents a facile approach of using clay minerals as the main material and pencil graphite rod as an in situ electrode for the oxygen evolution reaction. The fabricated electrode exhibits excellent catalytic performance and stability, driving the oxygen evolution reaction at extremely low overpotential.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Electrical & Electronic
Roberta Satariano, Loredana Parlato, Antonio Vettoliere, Roberta Caruso, Halima Giovanna Ahmad, Alessandro Miano, Luigi Di Palma, Daniela Salvoni, Domenico Montemurro, Carmine Granata, Gianrico Lamura, Francesco Tafuri, Giovanni Piero Pepe, Davide Massarotti, Giovanni Ausanio
Summary: In tunnel magnetic Josephson junctions, an inverse magnetic dependence of the critical current was observed and attributed to spin polarization phenomena at the S/F interface. Magnetic characterization and analysis showed that the F-stray fields were not responsible for this phenomenon, suggesting an explanation based on inverse proximity effect.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2022)
Article
Materials Science, Multidisciplinary
G. Lamura, D. Das, T. Shang, J. Peng, Y. Wang, Z. Q. Mao, T. Shiroka
Summary: Ca3Ru2O7 is a polar metal that belongs to the class of multiferroic magnetic materials. Fe doping in the Ru sites can significantly alter the electronic and magnetic properties of Ca3Ru2O7. Muon-spin spectroscopy measurements reveal a sharp normal-to-antiferromagnetic transition at 79.7 K and different magnetic fields at muon implantation sites depending on their proximity to RuO2 planes or apical oxygens. The presence of crystal twinning may explain the lack of significant changes in the local fields across the metal-to-insulator transition.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Nawal Berrada, Wassim El Housseini, Alexandre Desforges, Jerome Gleize, Jaafar Ghanbaja, Mathieu Etienne, Matthieu Houlle, Christine Bellouard, Brigitte Vigolo
Summary: Metal-based residues have a significant impact on the properties of carbon nanotubes, hindering their practical applications. This study presents a one-step gas phase treatment using chlorine to purify multiwalled carbon nanotubes. The treatment effectively removes metal impurities and preserves the quality of nanotubes. Magnetic measurements and hydrogen peroxide reduction experiments accurately evaluate the quantity of residues.
Article
Chemistry, Analytical
Abdul Sattar Chang, Aneela Tahira, Fouzia Chang, Abdul Ghaffar Solangi, Muhammad Ali Bhatti, Brigitte Vigolo, Ayman Nafady, Zafar Hussain Ibupoto
Summary: This study focused on the surface modification of Co3O4 nanostructures using sodium citrate as a reducing and surface modifying agent. The citrate ions enabled significant surface modification of the Co3O4 nanostructures, improving their electrochemical properties for the design of a non-enzymatic ascorbic acid sensor.
Article
Materials Science, Multidisciplinary
Mauricio Pavia, Melanie Emo, Fahad Alnjiman, Enrico Andreoli, Jean-Francois Pierson, Emmanuel Flahaut, Ewa Kazimierska, Brigitte Vigolo
Summary: This work explores a novel approach to disperse purified double-walled carbon nanotubes in high ionic strength aqueous media, i.e. a copper ion solution, to further prepare double-walled carbon nanotubes/Cu composites by co-electrodeposition. The capability of different surfactants to disperse the carbon nanotubes in the copper ion solution is analyzed, and Pluronic-P123 shows the best dispersive level. The dispersion mechanism suggests that the hydrophobic nature of Pluronic-P123 promotes efficient steric repulsions, enabling stable dispersion in the copper electrolyte.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Biochemistry & Molecular Biology
Mansab Ali Jakhrani, Muhammad Ali Bhatti, Aneela Tahira, Aqeel Ahmed Shah, Elmuez A. Dawi, Brigitte Vigolo, Ayman Nafady, Lama M. Saleem, Abd Al Karim Haj Ismail, Zafar Hussain Ibupoto
Summary: High-performance photocatalysts based on ZnO semiconductor materials are urgently needed to address environmental pollution caused by toxic emissions into water streams. In this study, ZnO nanostructures were synthesized using a biogenic approach with leafy spinach extract. The ZnO nanostructures exhibited visible porous structures and were able to efficiently mineralize methylene blue under sunlight. The use of 40 mL of leafy spinach extract resulted in the highest degradation efficiency of 99.9% for MB, with hydroxyl radicals playing a significant role in the degradation process.
Article
Chemistry, Analytical
Irum Naz, Aneela Tahira, Aqeel Ahmed Shah, Muhammad Ali Bhatti, Ihsan Ali Mahar, Mehnaz Parveen Markhand, Ghulam Murtaza Mastoi, Ayman Nafady, Shymaa S. Medany, Elmuez A. Dawi, Lama M. Saleem, Brigitte Vigolo, Zafar Hussain Ibupoto
Summary: To accurately determine urea in various samples, including clinical, food, dairy, and agricultural samples, a new analytical method is needed. Non-enzymatic methods are preferred due to their low cost and ease of use. In this study, bitter gourd peel waste was used to modify and transform nickel oxide nanostructures, resulting in a high sensitivity to urea oxidation under alkaline conditions.
Article
Chemistry, Physical
Mauricio Pavia, Melanie Emo, Patrice Estelle, Abdul Rahman Mohamed, Brigitte Vigolo
Summary: In this study, covalent functionalization of multiwalled carbon nanotubes and graphene nanoplatelets was conducted using refluxing in sulfuric acid/nitric acid mixtures of different concentrations. The aim was to achieve both enhanced thermal conductivity and stable dispersion in carbon nanomaterial-based nanofluids. The results showed that the best performance was achieved with MWCNT treated with a sulfuric acid/nitric acid mixture at concentrations of 3 and 5 M, resulting in a 9.4% enhancement of thermal conductivity at 20°C and stable dispersion over 5 weeks.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Rabita Mohd Firdaus, Claudia De Melo, Sylvie Migot, Melanie Emo, Jean-Francois Pierson, Abdul Rahman Mohamed, Brigitte Vigolo
Summary: Metal/carbon hybrids have great potential in catalysis, energy conversion and storage, and environmental applications. In this study, 3D porous alumina/reduced graphene oxide hybrid monoliths were prepared using atomic layer deposition. The alumina/graphene hybrid showed a high surface area of 284 m2/g and demonstrated excellent adsorption performance and reusability for Congo red removal. These multi-porous 3D alumina/graphene macrostructures offer promising potential for pollution remediation applications.
Article
Chemistry, Multidisciplinary
Shusheel Kumar, Aneela Tahira, Adeel Liaquat Bhatti, Muhammad Ali Bhatti, Riaz Hussain Mari, Nek Muhammad Shaikh, Muhammad Yameen Solangi, Ayman Nafady, Melanie Emo, Brigitte Vigolo, Antonia Infantes-Molina, Alberto Vomiero, Zafar Hussain Ibupoto
Summary: Recently, there has been significant attention given to the high electrochemical activity of nanostructured nickel-cobalt bimetallic oxide (NiCo2O4) material. The use of biomass, specifically citrus lemon juice, for synthesizing NiCo2O4 has gained popularity due to its low cost, simplicity, minimal use of toxic chemicals, and environmentally-friendly nature. The presence of acidic chemical compounds in citrus lemon juice played a dynamic role in transforming the nanorod morphology of NiCo2O4 into small and well-packed nanoparticles, leading to improved electrocatalytic properties.
Article
Chemistry, Multidisciplinary
Mehnaz Parveen, Aneela Tahira, Ihsan Ali Mahar, Muhammad Ali Bhatti, Elmuez Dawi, Ayman Nafady, Riyadh H. Alshammari, Brigitte Vigolo, Kezhen Qi, Zafar Hussain Ibupoto
Summary: Researchers have found that using wheat peel extract can promote morphological transformation in the synthesis of NiO nanostructures and enhance the performance of urea sensors. Wheat peel extract contains reducing and structure-orienting agents, which can reduce the size of nanostructures and improve electrochemical performance through modification.
Article
Chemistry, Multidisciplinary
Muhammad Ali Bhatti, Aneela Tahira, Aqeel Ahmed Shah, Umair Aftab, Brigitte Vigolo, Amira R. Khattab, Ayman Nafady, Imran Ali Halepoto, Matteo Tonezzer, Zafar Hussain Ibupoto
Summary: This study focuses on the use of yogurt as a source to prepare luminescent carbon material for enhancing the photodegradation of methylene blue. The synthesized carbon material shows outstanding degradation functionality of methylene blue under ultraviolet light. The study also investigates various parameters affecting the degradation efficiency, such as initial dye concentration, pH, and scavenger effects. Reusability of the carbon material was also studied. The use of yogurt to prepare carbon materials for dye degradation shows a green and innovative methodology.
Article
Chemistry, Multidisciplinary
Munirah D. Albaqami, Shymaa S. Medany, Ayman Nafady, Mazhar Hussain Ibupoto, Magnus Willander, Aneela Tahira, Umair Aftab, Brigitte Vigolo, Zafar Hussain Ibupoto
Summary: In this study, cotton silk was used as a source of abundant hydroxyl groups for the fast nucleation/growth of cobalt oxide nanowires. The Co3O4 nanowires exhibited a large surface area and high sensitivity towards uric acid, making them a promising tool for its detection. The uricase-immobilizing Co3O4 nanowires showed good performance and have potential applications in both in vitro and in vivo conditions. The use of cotton silk as a source of hydroxyl groups may also facilitate the fabrication of other metal-oxide nanostructures for various electrochemical devices.
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)