Article
Materials Science, Multidisciplinary
Wenhao Gu, Fei Teng, Zhicheng Yang, Zhe Liu
Summary: The study reveals that despite similar BET surface areas, ST-Cu2O has a 1.8 times higher capacitance than LT-Cu2O due to differences in {111}/{100} facet ratios and reactivity. After 3,000 cycles, ST-Cu2O retains 89.32% of its capacitance, compared to 83.95% for LT-Cu2O.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Soumyadipta Rakshit, Srabanti Ghosh, Rimi Roy, Subhash Chandra Bhattacharya
Summary: A facile chemical method was developed to synthesize cuprous oxide octahedrons in aqueous medium, showing excellent performance in electrochemical non-enzymatic glucose sensing with low detection limit and good stability. Furthermore, the octahedral Cu2O modified electrodes were found to be more reliable for real-time analysis of serum samples compared to commercial glucose biosensors.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Yun-Chao Yin, Yi Shi, Yi-Bai Sun, Dong-Rui Yang, Yang Liu, Xing-Hua Xia
Summary: The study demonstrates a simple electrochemical method to prepare atomically dispersed Pt catalyst on a sulfur-doped carbon structure, which shows high selectivity for the electrochemical synthesis of H2O2. The sulfur-doped carbon structure has a strong affinity to metal atoms, facilitating the formation of atomically dispersed Pt catalyst.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Jiangzhou Qin, Liuzhou Chen, Kun Wu, Xintao Wang, Quanlin Zhao, Lei Li, Baojun Liu, Zhengfang Ye
Summary: The study compared the reactivity of Cu2O(100) and Cu2O(111) facets for selectively reducing nitrate to ammonia, with Cu2O(100) showing a higher NH4+ yield rate and lower energy barrier, providing reliable evidence for crystal facet engineering to improve the selectivity of NO3- to NH4+ conversion.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Eung-Dab Kim, Young-Sik Cho, Young-Duk Huh
Summary: In this study, Cu2O microcrystals with various shapes were successfully prepared by adjusting the reaction conditions. The morphology of Cu2O crystals changed with increasing reaction temperature, NaOH concentration, and glucose amount.
Article
Chemistry, Multidisciplinary
Wenwen Lin, Hao Chen, Zihao Li, Kotaro Sasaki, Siyu Yao, Zihao Zhang, Jing Li, Jie Fu
Summary: This study developed a highly efficient heterostructured catalyst, where the interaction between metal and carbon nitride improved electrical conductivity and charge transfer processes, significantly enhancing the selectivity of hydrocarbons in CO2 electroreduction while effectively suppressing H2 evolution.
Article
Chemistry, Physical
Hemjot Kaur, Neetu Goel
Summary: Oxygen reduction and evolution reactions are crucial for sustainable energy solutions. Developing low-cost and efficient electrocatalysts is important. The proposed catalyst shows excellent catalytic activity and selectivity for hydrogen production and fuel cell applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Feng Guo, Chenxin Xie, Hui Zhao, Yang Gao, Houkai Teng, Enshan Han
Summary: Pd-Cu2O/CF material was synthesized using a two-step method, and it showed high efficiency in removing nitrate pollutants. After multiple tests, the material demonstrated long-term stability.
Article
Chemistry, Physical
Matthew T. Darby, Michail Stamatakis
Summary: Single-atom alloys show potential as electrocatalysts in proton-exchange membrane fuel cells, with PdAu SAA exhibiting lower theoretical overpotential, enhanced selectivity, and potential to approach the catalytic performance of Pt/C.
Article
Chemistry, Multidisciplinary
Yufei Jia, Yunxuan Ding, Tao Song, Yunlong Xu, Yaqing Li, Lele Duan, Fei Li, Licheng Sun, Ke Fan
Summary: This study investigates the effect of dynamic stability on CO2RR by using Zn-doped Cu2O nano-octahedrons, and confirms the Zn leaching and redeposition at the catalyst surface, leading to abundant Cu-Zn bimetallic sites. Mechanism analysis shows that the OHC-CHO pathway can function as the C-C coupling process, and the introduction of Zn effectively lowers the energy barrier for CO2RR to C2H4. This research provides profound insight into the surface dynamic reconstruction of amphoteric metal-containing electrocatalysts and guides the rational design of high-performance electrocatalysts for CO2RR.
Article
Nanoscience & Nanotechnology
Fei He, Nannan Xia, Yan Zheng, Yixin Zhang, Huailin Fan, Delong Ma, Qianhe Liu, Xun Hu
Summary: By coupling impregnation and electrochemical activation, an efficient, stable, and robust Ru-based electrocatalyst with ultrasmall and well-distributed Ru nanoparticles was developed, showing superior performance compared to Pt-based and Ru-based catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Ayoub Ahdour, Elhassan Amaterz, Aziz Taoufyq, Latifa Aneflous, Bahcine Bakiz, Khadija Abouabassi, Ahmed Ihlal, Abdeljalil Benlhachemi
Summary: A Cu2O/BaHPO4 photoanode with high activity was synthesized using a simple electrodeposition technique. The material was characterized by XRD and SEM-EDX, showing orthorhombic BaHPO4 and cubic Cu2O phases. DRS was used to evaluate the optical features and band gap energies. The electrocatalytic activity of the samples was evaluated using CCD-RSM, and the optimal conditions for Rhodamine B degradation were determined. The Cu2O/BaHPO4 photoanode exhibited a photo-electrocatalytic performance of about 98% in 5 minutes of reaction under visible irradiation, indicating excellent synergetic properties. The high cyclability of the photoanode was confirmed, making Cu2O/BaHPO4 a promising candidate for efficient degradation of organic pollutants.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Zhiping Deng, Xiaolei Wang
Summary: The carbon-based catalyst of HMCS exhibits high efficiency in selective oxygen reduction to H2O2, with high onset potential and half-wave potential as well as excellent H2O2 selectivity and electrochemical stability, making it a state-of-the-art catalyst for electrochemical H2O2 production. The outstanding performance is attributed to a combination of factors such as porous structure, large surface area, and proper distribution of oxygen-containing functional groups modification on the surface.
Article
Chemistry, Multidisciplinary
Fatemeh Heidari Gourji, Tharmakularasa Rajaramanan, Oyvind Frette, Dhayalan Velauthapillai
Summary: In this research, ternary metal molybdate nanomaterials with a unique yolk-shell hollow structure were successfully synthesized using a self-templating method. These materials showed remarkable performance as electrode materials in supercapacitors.
Article
Electrochemistry
Juan Du, Aibing Chen, Xueqing Gao, Senlin Hou
Summary: Designing stable and unique carbon nanostructures is crucial for improving supercapacitor performance, but there are still challenges in achieving excellent ion transportation, lasting capacitance activity, and high rate capability. In this study, a simple co-assembly method is developed to create carbon spheres with large mesopores (MCS). The MCS, obtained through the assembly of silica spheres and poly-2,6-diaminopyridine (PDAP), demonstrates enhanced electrochemical performance with high capacitance, long-term stability, and rate capability, making it a promising material for efficient energy storage.
ELECTROCHIMICA ACTA
(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)