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Synthesis and characterization of novel biocompatible nanocapsules encapsulated lily fragrance

Chinese Chemical Letters 2019年第3期30卷 739-742页

作者： Weihong Ji Tianlu Zhang Zhiguo Lu Jie Shen Zuobing Xiao Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences University of Chinese Academy of Sciences Shanghai Research Institute of Fragrance and Flavor Industry School of Perfume and Aroma Technology Shanghai Institute of Technology

Fragranced products are wildly used in our daily life. However, their storage, application and quality are severely influenced by their strong volatility. In order to overcome these natural defects of fragrances,fragrance encapsulation approaches have been developed recently. In this study, a mild, simple and lowcost method of fragrance encapsulation was invented. Liposomes composed of soya lecithin/DSPEPEG2000/PLGA were prepared to encapsulate lily fragrance(LF). And these nanosized fragrance products was named LF-NPs. The hydrodynamic diameters of LF-NPs were approximately 100 nm and their encapsulation efficiency was up to 21.9%. Besides, LF-NPs could also prolong the release time of lily fragrance. Finally, the cytotoxicity tests indicated that LF-NPs offered biocompatibility. Therefore, LF-NPs were expected to have application prospects.

关键词： Nanocapsules Encapsulation Fragrance Biocompatibility Simple operation

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Mesoporous silica nanospheres with the ability of photo-driven releasing sandela 803 for the application to wallpaper

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Chinese Chemical Letters 2019年第3期30卷 747-749页

作者： Weihong Ji Tianlu Zhang Zhiguo Lu Jie Shen Jing Hu Yunwei Niu Zuobing Xiao Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences University of Chinese Academy of Sciences Shanghai Research Institute of Fragrance and Flavor Industry School of Perfume and Aroma Technology Shanghai Institute of Technology

Fragrances are widely used in our daily life and have made great contributions to creating a clean and fresh healthy air environment. However, the rapid volatilization severely influences their storage,application and quality. Therefore, it is necessary and urgent to develop approaches to controllably release the odorants as demanded. In this study, photo-driven mesoporous silica nanospheres loaded with sandela 803 was designed, prepared and named as S803@MS-S. S803@MS-S possessed ordered mesoporous, large specific surface area and pore volume. After adsorption of sandela 803, the S803@MSS was added into wallpaper to prepare fragrant wallpaper S803@MS-S-W. And this wallpaper exhibited excellent sustained and controlled release performances stimulated by light.

关键词： Mesoporous silica nanospheres Sandela 803 Photo-driven release Wallpaper Azobenzene derivatives

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Spontaneous Chiral Self-Assembly of CdSe@CdS Nanorods

SSRN

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SSRN 2021年

作者： Duan, Tianwei Ai, Jing Cui, Xiaoyan Feng, Xiaowei Duan, Yingying Han, Lu Jiang, Jingang Che, Shunai School of Chemistry and Chemical Engineering State Key Laboratory of Composite Materials Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Shanghai Jiao Tong University 800 Dongchuan Road Shanghai200240 China School of Chemical Science and Engineering Tongji University 1239 Siping Road Shanghai200092 China Shanghai Key Laboratory of Green Chemical Science and Chemical Process School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai200062 China

The enantiomeric excess phenomenon in spontaneous chiral symmetry breaking (SCSB) is a crucial issue regarding the origin of homochirality in the prebiotic environment . Although the spontaneous formation of chiral inorganic compounds with chiral space groups and lattice dislocations has been extensively investigated, enantiomeric excess has rarely been considered, with the convention being to assume the presence of a racemic mixture. Here, we report the SCSB in the self-assembly of cadmium chalcogenide nanorods, leading to chiral biases away from the racemate. In the presence of achiral organics, helical CdSe@CdS nanorods (HCCNs) with unidirectionally rotated crystal lattices along the rod axis were stochastically formed on the epitaxial interface of the {111}cub/{0001}hex planes. The stability of helical dislocation structures, as supported by a theoretical analysis of their binding energies, suggested the possibility for the emergence of helical structures in an achiral environment. Hierarchical chiral films induced by simple solvent evaporation self-assembly of HCCNs exhibited spontaneous enantiomeric excess between batches, which was speculated to be originated from the enantiomeric excess seed-assembly that induce one handedness dominated system based on the majority rules. © 2021, The Authors. All rights reserved.

关键词： Self assembly

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Inside Front Cover: General and Versatile Nanoarchitectonics for Amino Acid-Based Glasses via Co-Assembly of Organic Counterions

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Angewandte Chemie International Edition 2025年

作者： Xianbao Li Yang Yang Zhiqi Zhao Shiwei Bai Qi Li Junbai Li Beijing National Laboratory for Molecular Sciences (BNLMS) CAS Key Lab of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety National Center for Nanoscience and Technology Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China

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Inside Front Cover: General and Versatile Nanoarchitectonics for Amino Acid-Based Glasses via Co-Assembly of Organic Counterions

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Angewandte Chemie 2025年

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Corrosion Resistance Enhancement of Electrodeposition Ni-P Coating by Incorporation of Ti3c2tx/Mos2 Particles with Sandwich-Like Hierarchical Structure

SSRN

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SSRN 2022年

作者： Du, Yingchao Zhang, Xiaomeng Han, Peiwei School of Electrical and Inforrnation Automation Qufu Normal University Shandong Province Rizhao276826 China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences PO Box 353 Beijing100190 China Innovation Academy for Green Manufacture Chinese Academy of Science Beijing100190 China

In this work, Ti3C2Tx/MoS2 particles with sandwich-like hierarchical structure are incorporated into the Ni-P coating by the simple electrodeposition. The addition of Ti3C2Tx/MoS2 particles can make the coating surface with much nodositas and layered "cauliflower" structure possessing the wettability of hydrophobicity. Then, the corrosion resistance increases much by the incorporation of Ti3C2Tx/MoS2 particles and the resistance of Ni-P-Ti3C2Tx/MoS2 composite coating first decreases and then increases with the prolonging immersion time. The corrosion mechanism of the Ni-P-Ti3C2Tx/MoS2 composite coating is analyzed and the role of Ti3C2Tx/MoS2 particles in Ni-P coating is discussed. © 2022, The Authors. All rights reserved.

关键词： Corrosion resistance

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Surface electronic and steric effects of jamesonite and their influence on the adsorption of diisobutyldithiophosphinate

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Surfaces and Interfaces 2025年 70卷

作者： Weiyong Cui Qiurong Long Jianhua Chen Yangge Zhu Qiang Guo Tao Qi State Key Laboratory of Mineral Processing Beijing General Research Institute of Mining &Metallurgy Beijing 100070 PR China Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 PR China Shenzhen Dawei Innovation Technology Co. LTD Shenzhen 518110 PR China School of Resources Environment and Materials Guangxi University Nanning 530004 PR China

The principle of electronic and steric effects has been introduced to investigate the surface properties of jamesonite and its interactions with diisobutyldithiophosphinate (DIBDTPI). The findings show that the convergence of the strong Fe-S bonds causes the Fe atom to contract into the body-centered position of the FeS 4 tetrahedron, which in turn lengthens the surface Pb-S bond of the PbS 4 hexahedron and further exposes the Pb atoms on the surface. The SbS 3 cluster exhibits a pyramidal structure as a consequence of the lone pair electrons occupying a sp 3 hybridization state, resulting in an electron-rich condition for the Sb atoms. The DIBDTPI molecule has been observed to be chemisorbed onto the semi-opened Pb atom. In contrast, the interaction with the Fe atom is rather weak, primarily due to the steric hindrance effect from the two adjacent S atoms. Meanwhile, the S atom of the PSS polar group is capable of penetrating the electronic shield posed by lone pair electrons, and forms new Sb-S bonds.

关键词： Coordination chemistry Electronic and steric effects Jamesonite Selective adsorption Sodium diisobutyldithiophosphinate (DIBDTPI)

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Enhanced Electrochemical Nitrate-to-Ammonia Performance of Cobalt Oxide by Protic Ionic Liquid Modification

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Angewandte Chemie 2023年第28期135卷

作者： Danni Qin Shaojia Song Prof. Yanrong Liu Prof. Ke Wang Prof. Bing Yang Prof. Suojiang Zhang Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 P.R. China Sino-Danish College University of Chinese Academy of Sciences Beijing 100049 P.R. China State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 P.R. China

Electrochemical conversion of nitrate to ammonia is an appealing way for small-scale and decentralized ammonia synthesis and waste nitrate treatment. Currently, strategies to enhance the reaction performance through elaborate catalyst design have been well developed, but it is still of challenge to realize the promotion of reactivity and selectivity at the same time. Instead, a facile method of catalyst modification with ionic liquid to modulate the electrode surface microenvironment that mimic the role of the natural MoFe protein environment is found effective for the simultaneous improvement of NH 3 yield rate and Faradaic efficiency (FE) at a low NaNO 3 concentration of 500 ppm. Protic ionic liquid (PIL) N-butylimidazolium bis(trifluoromethylsulfonyl)imide ([Bim]NTf 2 ) modified Co 3 O 4−x is fabricated and affords the NH 3 yield rate and FE of 30.23±4.97 mg h −1 mg cat. −1 and 84.74±3.43 % at −1.71 and −1.41 V vs. Ag/AgCl, respectively, outperforming the pristine Co 3 O 4−x . Mechanistic and theoretical studies reveal that the PIL modification facilitates the adsorption and activation of NO 3 − as well as the NO 3 − -to-NH 3 conversion and inhibits hydrogen evolution reaction competition via enhancing the Lewis acidity of the Co center, shuttling protons, and constructing a hydrogen bonded and hydrophobic electrode surface microenvironment.

关键词： Ammonia Synthesis Co3O4−x Electrocatalysis Ionic Liquids Nitrate Reduction

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Anti-electrostatic hydrogen bonding between anions of ionic liquids: A density functional theory study

arXiv

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arXiv 2020年

作者： Chen, Junwu Dong, Kun Liu, Lei Zhang, Xiangping Zhang, Suojiang Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

Hydrogen bonds (HBs) play a crucial role in the physicochemical properties of ionic liquids (ILs). At present, HBs between cations and anions (Ca-An) or between cations (Ca-Ca) in ILs have been reported extensively. Here, we provided DFT evidences for the exists of HBs between anions (An-An) in the IL 1-(2-hydroxyethyl)-3-methylimidazolium 4-(2-hydroxyethyl)imidazolide [HEMIm][HEIm]. The thermodynamics stabilities of anionic, cationic, and H2O dimers together with ionic pairs were studied by potential energy scans. The results show that the cation-anion pair is the most stable one, while the HB in anionic dimer possesses similar thermodynamics stability to the water dimer. The further geometric, spectral and electronic structure analyses demonstrate that the inter-anionic HB meets the general theoretical criteria of traditional HBs. The strength order of four HBs in complexes is cation-anion pair > H2O dimer ≈ cationic dimer > anionic dimer. The energy decomposition analysis indicates that induction and dispersion interactions are the crucial factors to overcome strong Coulomb repulsions, forming inter-anionic HBs. Lastly, the presence of inter-anionic HBs in ionic cluster has been confirmed by a global minimum search for a system containing two ionic pairs. Even though hydroxyl-functionalized cations are more likely to form HBs with anions, there still have inter-anionic HBs between hydroxyl groups in the low-lying structures. Our studies broaden the understanding of HBs in ionic liquids and support the recently proposed concept of anti-electrostatic HBs. © 2020, CC BY.

关键词： Hydrogen bonds

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Comprehensive insight into Cu-based catalysts for CO2 hydrogenation to methanol

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Sustainable Materials and Technologies 2025年 45卷

作者： San, Xiaoguang Li, Xudong Jin, Quan Dai, Beibei Zhang, Lei Meng, Dan Qi, Jian College of Chemical Engineering Shenyang University of Chemical Technology Shenyang110142 China School of Materials Science and Engineering Jilin University Changchun130022 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

Catalytic hydrogenation of carbon dioxide (CO2) to methanol is a key strategy for mitigating climate change and promoting a sustainable methanol economy. In recent years, copper-based catalysts have attracted much attention due to their abundant reserves, low cost and excellent catalytic performance. This paper systematically reviews the latest progress of copper-based catalysts and deeply explores the process principles of carbon dioxide hydrogenation to methanol, covering multiple pathways such as direct hydrogenation, reforming, water-gas shift and carbon monoxide hydrogenation, and carboxylic acid intermediates. At the same time, the historical evolution of methanol synthesis catalysts and various preparation methods of copper-based catalysts are analyzed, their advantages and disadvantages and adjustment strategies are discussed, and methods for improving catalytic performance by introducing different supports and additives are introduced. In addition, the reaction mechanism of carbon dioxide-based methanol synthesis is explained, and the current status and challenges of industrial development are outlined, especially key issues such as demonstration projects, commercial operations, and carbon dioxide capture, green hydrogen source costs, and catalyst deactivation. Based on this, this paper proposes a series of suggestions for future research directions, aiming to improve catalyst performance, optimize operating conditions, and accelerate its commercialization process, so as to contribute to the realization of carbon neutrality goals. © 2025 Elsevier B.V.

关键词： Hydrogenolysis

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