Article
Chemistry, Physical
Abhishek Kumar, Ritu Bhardwaj, Joyanta Choudhury
Summary: This research successfully established a catalytic transfer hydrogenation process for the conversion of chemically captured CO2 into MeOH using ethylene glycol as the hydride donor. The Ru(II)-CNN pincer catalyst and TMEDA were found to be the most effective combination, resulting in a MeOH yield of up to 64% and 112 catalytic turnovers. The use of a dilute CO2 stream (10% in N2) also provided a similar MeOH yield of approximately 70% in this integrated protocol.
Article
Chemistry, Physical
Samuel Jeong, Tatsuhiko Ohto, Tomohiko Nishiuchi, Yuki Nagata, Jun-ichi Fujita, Yoshikazu Ito
Summary: The study presents a method of accelerating the electrochemical reduction of CO2 and increasing the formation rate using a polymer-covered Sn catalyst. Nickel phosphide demonstrates high Faradaic efficiency at -1.2 V (vs RHE).
Article
Chemistry, Multidisciplinary
Yanru Zhang, Ying Wang, Qingli Qian, Yang Li, Bernard Baffour Asare Bediako, Jingjing Zhang, Junjuan Yang, Zhiyan Li, Buxing Han
Summary: This paper presents a method for synthesizing higher carboxylic acids from CO2 and H2 through the reaction of alcohols. The reaction is effectively accelerated by a catalytic system consisting of iridium(iii) acetate and LiI. The method is applicable to various alcohols and the reaction mechanism is proposed based on systematic control experiments.
Article
Chemistry, Multidisciplinary
Kejie Chai, Xilin Yang, Runqiu Shen, Jianli Chen, Weike Su, An Su
Summary: In this study, a Pt@KIT-6 nanocomposite was designed and used as a catalyst in a continuous-flow microreactor for the hydrogenation of halogenated nitroarenes. The nanocomposite demonstrated stable mesoporous nanostructure, uniformly distributed pore structure, and large specific surface area, which enhanced its activity and selectivity. The Pt@KIT-6 nanocomposite showed good catalysis for the hydrogenation reaction in the continuous-flow microreactor, with high conversion and selectivity.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Applied
Aritomo Yamaguchi, Yuka Murakami, Kiyoyuki Yamazaki, Masayuki Shirai, Norihito Hiyoshi
Summary: This study investigated the conditions for the stereoselective hydrogenation of guaiacol and found that using the Rh/C catalyst in supercritical CO2 resulted in a higher proportion of cis-2-methoxycyclohexanol.
Article
Chemistry, Multidisciplinary
Prashant S. Kulkarni, Prathamesh Ranjane, Karun Mishra, Swati Sundararajan, Sanjay Kamble
Summary: This investigation presents the synthesis and characterization of a new series of ionic liquids (ILs) for CO2 absorption, aiming to develop more efficient and sustainable technologies. Different ILs were synthesized through modifications and metathesis reactions, and their properties were evaluated using various techniques. The sorption investigation showed that the IL with [BF4]- anion demonstrated the highest CO2 absorption capacity and can be efficiently regenerated and reused. This work highlights the adaptability of tetraalkylammonium-based dicationic ILs for various applications, including sustainable CO2 capture technology.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Electrochemistry
Kazuhito Higuchi, Tso-Fu Mark Chang, Masato Sone
Summary: The electrochemical reaction mechanism of Cu electrodeposition was studied in a sulfate-based Cu plating solution containing poly ethylene glycol (PEG) and supercritical CO2 (Sc-CO2). Experimental results showed that the presence of Sc-CO2 significantly inhibited Cu electrodeposition. A kinetics model based on the conventional model for the system with suppressor was proposed to explain the behavior of the Sc-CO2 mixed system. The study suggested that Sc-CO2 micelles and PEG molecules adsorbed on the electrode surface in a similar manner, affecting the reaction mechanism and inhibiting the reduction reaction of Cu ions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
I. Elmanovich, A. Stakhanov, E. Kravchenko, S. Stakhanova, A. A. Pavlov, M. M. Ilyin, E. P. Kharitonova, M. O. Gallyamov, A. R. Khokhlov
Summary: The thermal oxidation of polyethylene was studied in oxygen-enriched supercritical CO2 and pure oxygen environments, showing that the oxygen content strongly affects the product characteristics. The volatile products were analyzed using various techniques, revealing that supercritical CO2 has a more pronounced influence at lower oxygen to polymer mass ratios.
JOURNAL OF SUPERCRITICAL FLUIDS
(2022)
Article
Chemistry, Multidisciplinary
Sagar D. Chaudhary, Shardul S. Rahatade, Sunil S. Joshi, Nilesh A. Mali
Summary: This article reports the synthesis of dime-thylformamide (DMF) using ruthenium doped Mg/Al calcined hydrotalcite by CO2 hydrogenation in the presence of dimethylamine (DMA). The optimized conditions achieved complete conversion of dimethylamine with a yield of more than 92%. The catalyst properties, surface morphology, and kinetic modeling were thoroughly investigated.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Applied
Youwei Yang, Dawei Yao, Mengjiao Zhang, Antai Li, Yueqi Gao, Busha Assaba Fayisa, Mei-Yan Wang, Shouying Huang, Yue Wang, Xinbin Ma
Summary: A series of Mo-doped Cu/SiO2 catalysts were prepared and used for the hydrogenation of ethylene carbonate (EC), with the 0.5 wt% Mo-doped catalyst exhibiting the highest catalytic performance. The addition of Mo can enhance copper dispersion and prevent aggregation, leading to improved activation of EC. The insights gained from this study may help in designing more efficient copper-based catalysts for the hydrogenation of carbon-oxygen bonds.
Article
Chemistry, Physical
Xu Fang, Aixin Fan, Zhen Wang, Yao Wang, Yunrui Li, Shuna Li, Yinghao Wang, Chenglong Dong, Haixiao Sun, Yuanyuan Liu, Xin Zhang, Yehua Han, Xiaoping Dai
Summary: Efficient nanostructured catalysts Pt-FeNi @ C, Pt-Fe @ C, and Pt-Ni @ C were developed for the selective hydrogenation of 4-carboxybenzaldehyde (4-CBA), achieving excellent 4-hydroxymethylbenzoic acid (4-HMBA) and benzoic acid (BA) selectivity. Among them, Pt-FeNi @ C catalyst showed outstanding recyclability and catalytic activity.
JOURNAL OF CATALYSIS
(2021)
Article
Multidisciplinary Sciences
Changjiang Hu, Zhiwen Jiang, Qunyan Wu, Shuiyan Cao, Qiuhao Li, Chong Chen, Liyong Yuan, Yunlong Wang, Wenyun Yang, Jinbo Yang, Jing Peng, Weiqun Shi, Maolin Zhai, Mehran Mostafavi, Jun Ma
Summary: The efficient and selective production of CH3OH from CO2 and water using renewable X/gamma-rays or accelerated electrons is challenging but promising for a carbon-neutral economy. In this study, atomic Cu-Ni dual-metal sites embedded in a metal-organic framework are shown to enable efficient CH3OH production (around 98%) over multiple irradiated cycles. The use of practical electron-beam irradiation and a cost-effective hydroxyl radical scavenger promotes CH3OH production rate to 0.27 mmol g(-1) min(-1). Time-resolved experiments and calculations reveal the direct generation of CO2 center dot-. radical anions via aqueous electrons attachment and cascade hydrogenation steps. This study highlights a radiolytic route for producing CH3OH from CO2 feedstock and introduces a desirable atomic structure to enhance performance.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Thomas M. Rayder, Adam T. Bensalah, Banruo Li, Jeffery A. Byers, Chia-Kuang Tsung
Summary: Many enzymes utilize second sphere interactions to enhance catalyst activity and selectivity. A strategy is reported for efficiently manipulating outer-sphere influence on catalyst reactivity by modulating host-guest interactions. The use of ammonium functional group in UiO-66 results in improved efficiency in hydrogenation reactions, demonstrating the importance of proximity between functional group and encapsulated catalyst.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Polymer Science
Jinwei Chen, Ling Yang, Dahua Chen, Meigui Wang, Lixuan Wu
Summary: This study synthesized highly porous poly(lactic acid) (PLA)-based scaffolds with high interconnectivity and hydrophilicity through a supercritical carbon dioxide (c-CO2) foaming strategy. Poly(butylene succinate) (PBS) and poly(ethylene glycol) (PEG) were added to improve the interconnectivity and hydrophilicity. PLA/PBS/PEG(90/10/10) blend foaming under 100 degrees C showed the highest open cell rate of 95.9% and a high volume expansion ratio of 13.98, with a reduced water contact angle of 62.5 degrees. The biocompatibility of the scaffolds was examined with fibroblast NIH/3T3 cells, and the results showed that PLA/PBS/PEG scaffolds had better biocompatibility compared to PLA/PBS scaffolds. This work provides an easy and green approach for fabricating fully biodegradable PLA-based scaffolds with high open cell rate and hydrophilicity in tissue engineering.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jianbo Zhao, Xiaomeng Li, Meng Zhang, Zhuo Xu, Xiaomei Qin, Yingfan Liu, Lifeng Han, Gao Li
Summary: In this study, a hollow mesoporous Co-N-C@mSiO(2) nanostructure derived from ZIF-67 was designed via the encapsulation-pyrolysis strategy. The Co-N-C@mSiO(2) catalyst exhibited excellent catalytic performance in the furfural hydrogenation towards furfuryl alcohol with good stability, and it was much better than other reported transition metal catalysts. This work provides a novel and facile strategy for preparing highly efficient non-precious metal catalysts to replace Cr-based and noble metal catalysts for furfural hydrogenation.
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)