Article
Engineering, Environmental
Tengling Ye, Xinyu Zhang, Jinqiao Wen, Xiaochen Sun, Dongqing He, Wenxu Li
Summary: In this paper, a visualized electronic skin based on a poly (ionic liquid) ionogel was designed and fabricated, which demonstrated various fascinating visual functions. The integration of ionogel and lithium salt resulted in an e-skin exhibiting both electrical and optical responses to external strain, showing great potential for use in chemical environmental monitoring robotics, wearable electronic devices, and human-computer interaction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Ying Wei, Wei Chen, Xinyi Ge, Jiayi Liang, Zheng Xing, Qingguo Zhang, Zhong-Xia Wang
Summary: This article introduces a method of preparing free-standing ionogels through double-additive induced physical cross-linking. The ionogels prepared using this method have excellent mechanical and electrochemical properties, making them suitable for applications in flexible electronic devices and wearable electronic skin.
Article
Chemistry, Multidisciplinary
Chunming Chen, Qiong Chen, Jian Xie, Zhonghua Chen
Summary: This study presents a novel approach to develop monolithic ionogel electrolyte membranes (MIEMs) based on gelling matrices and ionic liquids (ILs). The MIEMs exhibit good thermal stability and high ionic conductivity, making them promising for lithium storage and beyond.
Article
Chemistry, Multidisciplinary
Ying Wang, Zhengxuan Wei, Tongtai Ji, Ruobing Bai, Hongli Zhu
Summary: This paper presents a novel ionogel with exceptional ionic conductivity, mechanical stretchability, and toughness, achieved through ion impregnation and solvent exchange. The ionogel exhibits high mechanical performance and ion conductivity, making it suitable for applications in flexible and wearable electronics.
Article
Chemistry, Physical
Yinan Zhao, Qingtao Zeng, Changcheng Jiang, Xuejun Lai, Hongqiang Li, Zhengzhong Wu, Xingrong Zeng
Summary: This study presents a significant advancement in the construction of self-powered fire protection materials through the use of phosphorous-containing ionic liquids to fabricate ionogels. The produced ionogels exhibit good ionic conductivity and thermoelectric effect, enabling temperature sensing, sensitive fire warning, and excellent flame retardancy. Additionally, the ionogels demonstrate high durability and self-powering capabilities, making them suitable for powering fire warning circuits and electronics.
Article
Chemistry, Physical
Benben Wei, Shuo Huang, Yuhang Song, Xuan Wang, Min Liu, Hongyun Jin, Guozhong Cao
Summary: In this study, a multifunctional additive, C-60, is proposed to compensate for the intrinsic imperfection of the PEO electrolyte. The unique 0D molecular structure of C-60 enhances ionic conductivity and blocks Li dendrite growth, leading to improved performance and safety features in lithium-sulfur batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Polymer Science
Bihua Chen, Man Wang, Xin Wang, Qi Zhao, Yingxiong Wang, Guohua Gao
Summary: A series of PILs based on VSpIm and NaSS were successfully synthesized and characterized, showing distinct swelling properties in solvents with delta(T) > 24.5 MPa1/2. The molar swelling ratio (Q(M)) was linearly positively correlated with the delta(T) value. The PILs also exhibited excellent enrichment properties in mixed solvents and showed higher catalytic activity in the hydration of alkyne compared to heterogeneous and homogeneous catalysts.
Article
Thermodynamics
Irena Kresic, Natasa Stipanelov Vrandecic, Matko Erceg, Zoran Grubac, Mia Galic
Summary: This study focuses on the characterization of a series of solid nanocomposite polymer electrolytes consisting of PEO, POSS, and LiBOB. The addition of LiBOB and POSS leads to a decrease in the crystallinity and melting temperatures of PEO, while the glass transition temperatures increase. The thermal stability of the polymer electrolytes was investigated, showing a more complex degradation compared to pure PEO. However, the polymer electrolytes remain thermally stable enough for their applications in electrochemical devices. The incorporation of LiBOB and POSS positively influences the ionic conductivity of PEO. The optimized system was determined based on the ionic conductivity of the nanocomposites.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Materials Science, Multidisciplinary
Kathryn E. O'Harra, George M. Timmermann, Jason E. Bara, Kevin M. Miller
Summary: This study introduces the exploration of using ionic liquids (ILs) as solvents for ionenes-charged polymers, leading to the formation of poly(IL)-ionene semi-interpenetrating networks (semi-IPNs). The resulting poly(IL)-ionene semi-IPNs show enhanced elasticity and ionic conductivity compared to neat poly(IL). This unique type of ionic composite presents vast opportunities for material design due to the limitless possibilities for IL and ionene structures.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Sudeshna Sen, Sean E. Goodwin, Pedro Verdia Barbara, Graham A. Rance, Dominic Wales, Jamie M. Cameron, Victor Sans, Mohamed Mamlouk, Keith Scott, Darren A. Walsh
Summary: The use of electrically charged, polymerized ionic liquids (polylLs) for developing gel-polymer electrolytes shows promising potential, with polyIL/IL GPEs demonstrating superior electrochemical and thermal stability and up to six times greater conductivity compared to materials based on neutral hosts. The distribution of ionic liquids within the polymers influences the properties of the gel electrolytes, and 3D printing of polyIL/IL gels has been successfully demonstrated in this study as a proof-of-concept.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Physical
Xianhong Chen, Ling Liang, Weida Hu, Haiyang Liao, Yongqi Zhang
Summary: A novel polymer poly(ionic liquid)s ionogel with excellent flexibility and flame retardancy has been developed in this study. The ionogel shows high ionic conductivity and lithium ion mobility, leading to significant rate performance and cycling stability in batteries. It has potential applications in high safety flexible electronic devices.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Le Yu, Lu Yu, Qing Liu, Tao Meng, Sen Wang, Xianluo Hu
Summary: The study demonstrates a novel ionogel electrolyte membrane with high Li+ conductivity and excellent thermal stability, utilizing positively charged poly(ionic liquid) nanofibers favorable for Li+ transport, improving the rate capability and cyclability of solid-state lithium batteries over a wider temperature range.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Polymer Science
Ji-Cong Huang, Yui Whei Chen-Yang, Jiunn-Jer Hwang
Summary: In this study, TEOS and MTES were utilized as precursors for the synthesis of silica ionogel electrolytes, combined with the ionic liquid [BMIM-ClO4]. The addition of MTES improved the mechanical strength of the electrolyte and simplified the preparation process. The prepared silica ionogel electrolyte exhibited high ionic conductivity and electrochemical stability, making it a promising candidate for energy storage applications.
Article
Chemistry, Multidisciplinary
Martin Obst, Giel Arnauts, Alexander John Cruz, Maider Calderon Gonzalez, Kristof Marcoen, Tom Hauffman, Rob Ameloot
Summary: The study demonstrates the chemical vapor deposition (CVD) of ionic liquids (ILs) for the first time, enabling the easy fabrication of ionogel micropatterns through a combination of IL-CVD and standard photolithography, with resulting microdrop arrays serving as microreactors. This IL-CVD approach opens up new possibilities for leveraging the properties of ILs in various applications and microfabricated devices.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Jun Hyuk Lee, Jong Chan Shin, Jihoon Kim, Jeong-Won Ho, Won Jang Cho, Moon Jeong Park, Gi-Ra Yi, Minjae Lee, Pil J. Yoo
Summary: Considering the safety risks of conventional liquid organic electrolytes, researchers have turned their attention to the development of safer solid-state alternatives, such as ionic liquid-containing ionogels. By immobilizing a zwitterionic surfactant on the surface of a polymeric matrix, this study successfully enhanced the lithium-ion conductivity of the ionogels, leading to improved performance in lithium iron phosphate half-cell tests. The best rate capability (116.8 mAh g(-1) at 1 C) and cycling performance (initial discharge capacity = 148.9 mAh g(-1), capacity fading rate = 0.069% per cycle) were achieved with a surfactant loading of only 2 wt%. This research paves the way for the design of high-performance zwitterion-containing ionogel electrolytes as safer and leak-resistant alternatives to conventional liquid organic electrolytes for lithium secondary batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Thermodynamics
Ekaterina A. Arkhipova, Anton S. Ivanov, Natalia E. Strokova, Konstantin Maslakov, Sergei A. Chernyak, Serguei Savilov
Summary: Nitrogen-doped graphene nanoflakes with variable N-doping levels were prepared by chemical vapor deposition and characterized for their structure and combustion heats. The combustion heats showed a bell-shaped dependence on nitrogen content and the contributions of different factors to the combustion heat were discussed.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Physical
Alexander Ulyanov, Dmitrii Stolbov, Serguei Savilov
Summary: Jellyfish-like graphene nanoflakes prepared by hydrocarbon pyrolysis were studied using electron paramagnetic resonance (EPR) method. Oxidized and N-doped oxidized flakes showed extremely high EPR response, providing localized and mobile paramagnetic centers with different electron environments.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2022)
Article
Chemistry, Applied
Sergei A. Chernyak, Dmitrii N. Stolbov, Konstantin I. Maslakov, Sergey V. Maksimov, Ruslan V. Kazantsev, Oleg L. Eliseev, Dmitry O. Moskovskikh, Serguei V. Savilov
Summary: Different carbon nanomaterials are considered promising supports for Fischer-Tropsch synthesis catalysts. This study successfully synthesized consolidated Co and Fe catalysts supported on graphene nanoflakes for the first time using spark plasma sintering. The results showed that sintering significantly increased the activity and TOF of the Co catalyst, while decreasing the activity of the Fe catalyst but increasing its C5+ selectivity and olefins to paraffins ratio. These improvements were attributed to the unique structure of the nanoparticles and the close contact between the support and the metal particles.
Article
Chemistry, Physical
D. N. Stolbov, A. Smirnova, S. Savilov, M. A. Shilov, A. A. Burkov, A. S. Parfenov, N. Usol'tseva
Summary: The tribological and rheological characteristics of three industrially produced greases and a model lubricant doped with new carbon nanoflakes additives have been studied, showing that modification of carbon structure with heteroatoms can significantly reduce friction coefficient. The results demonstrate the prospects for further study and the use of modified carbon nanomaterials.
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
(2022)
Article
Engineering, Environmental
J. W. Loh, Xue Yang Goh, Phuc T. T. Nguyen, Quoc B. Thai, Z. Y. Ong, Hai M. Duong
Summary: This study developed wool aerogels using wool waste fibers and PVA as a cross-linking binder, with high porosity (97.73-99.63%) and low densities (0.004-0.023 g/cm(3)). The aerogels showed great oil absorption performance and hydrophobicity, outperforming commercial counterparts. The fabrication technique used was also faster and more efficient than conventional methods.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Chemistry, Physical
Jianguo Sun, Hualin Ye, Jin An Sam Oh, Yao Sun, Anna Plewa, Yumei Wang, Tian Wu, Kaiyang Zeng, Li Lu
Summary: Introducing nickel hexacyanoferrate (NNiFCN) onto the outer layer of iron hexacyanoferrate (NFFCN) through ion exchange improves structural stability and enhances the kinetics of sodium ion diffusion. As a result, the electrochemical performance is significantly improved with a remarkable long-term cycling stability, making NNiFCN/NFFCN core-shell structured cathode a promising candidate for full sodium-ion batteries in large-scale energy storage applications.
Article
Chemistry, Physical
Jishi Yang, Yaolu Liu, Dongyang Sun, Ning Hu, Huiming Ning
Summary: Robust edge states of periodic crystals with Dirac points fixed at specific positions in the Brillouin zones have attracted significant attention. Recently, a special edge state associated with degenerate Dirac cones at high symmetric boundaries of the first irreducible Brillouin zone has been observed. By introducing a quantitative gauge of mode inversion error, insulator pairs with Dirac cone features can be directly obtained without manual tuning.
Article
Materials Science, Multidisciplinary
Rustam I. Arabov, Maria Y. Komarova, Mikhail O. Astafurov, Alexander V. Knotko, Konstantin I. Maslakov, Serguei V. Savilov, Anastasia V. Grigorieva
Summary: In this study, silver inverse opals were prepared using non-toxic electrolytes and electrochemical crystallization. The silver crystals were formed in the pores of polystyrene microsphere matrices. The samples obtained from rhodanic electrolytes had the most uniform structure and the lowest percentage of surface admixtures. Reflectance optical spectra of the silver inverse opals showed various plasmon excitation modes in the visible spectral range, making them attractive for plasmonics.
Article
Chemistry, Physical
Zoya V. Bobyleva, Oleg A. Drozhzhin, Anastasia M. Alekseeva, Kirill A. Dosaev, Georgy S. Peters, Grigorii P. Lakienko, Tatiana I. Perfilyeva, Nikita A. Sobolev, Konstantin I. Maslakov, Serguei V. Savilov, Artem M. Abakumov, Evgeny V. Antipov
Summary: This study comprehensively explores the pretreatment of phenol-treated hard carbon anode materials and their impact on electrochemical performance. The results show that the conditions of the pretreatment step have a significant influence on the microstructure and electrochemical performance of the hard carbon.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Xue Yang Goh, Ren Hong Ong, Phuc T. T. Nguyen, Tianliang Bai, Dave Aw, Tian Li, Luon Tan Nguyen, Hai M. Duong
Summary: A novel and environmentally friendly approach to aluminum-based aerogels using aluminum waste is proposed. The aluminum-based aerogels produced have low density, high porosity, low thermal conductivity, high-temperature resistance, and good oil absorption properties. This study shows that aluminum-based aerogels have potential in thermal insulation and oil absorption applications.
Article
Biochemistry & Molecular Biology
Subhrajit Konwar, Diksha Singh, Karol Strzalkowski, Mohamad Najmi Bin Masri, Muhd Zu Azhan Yahya, Markus Diantoro, Serguei V. Savilov, Pramod K. Singh
Summary: In this study, an ionic liquid (IL) biopolymer system incorporating 1-ethyl, 2-methyl imidazolium thiocyanate was developed for use in electric double-layer capacitors (EDLCs) and dye-sensitized solar cells (DSSCs). The IL mixed biopolymer electrolytes exhibited high ionic conductivity and thermal stability. Various characterization techniques were used to evaluate the performance of these IL-doped biopolymer electrolyte films. The results showed that the EDLC cells had a high specific capacitance and the DSSCs achieved moderate efficiency under sun conditions.
Article
Chemistry, Physical
Nikolai O. O. Taibarei, Vladimir G. G. Kytin, Elizaveta A. A. Konstantinova, Vladimir A. A. Kulbachinskii, Serguei V. V. Savilov, Vladimir A. A. Mukhanov, Vladimir L. L. Solozhenko, Vadim V. V. Brazhkin, Andrei N. N. Baranov
Summary: The possibility of doping ZnO with Li, Na, and K in its metastable rock salt structure was investigated. MgxZn1-xO alloys and pure ZnO with a rock salt structure doped with Li, Na, and K metals were obtained for the first time by high-pressure synthesis. The presence of Li, Na, and K metals in rock salt ZnO was confirmed by electron energy-loss spectroscopy and X-ray photoelectron spectroscopy in MgxZn1-xO alloys.
Article
Chemistry, Physical
Valery Zakharov, Yulia Kardasheva, Vladimir Chernyshev, Maria Terenina, Konstantin Kalmykov, Dmitry Ovsyannikov, Sergey Savilov, Svetlana Filippova, Edward Karakhanov, Sergey Dunaev, Leonid Aslanov
Summary: Hydroformylation, or oxo synthesis, is an important industrial process, and the development of efficient and stable phosphorus-free catalysts is of great interest. This study demonstrates the use of CAM co-crystals as a support for stabilizing rhodium nanoparticles, showing high activity and stability in the hydroformylation reaction of various olefins.
MOLECULAR CATALYSIS
(2023)
Article
Engineering, Electrical & Electronic
Subhrajit Konwar, Pramod K. Singh, Pawan Dhapola, Abhimanyu Singh, Serguei V. Savilov, Muhd Zu Azhan Yahya, Sirin Siyahjani Gultekin, Burak Gultekin
Summary: This paper deals with the synthesis, characterization, and application of low-viscosity ionic liquids as dopants and biopolymers as the host. The ionic liquid enhances the ionic conductivity and thermal stability of the biopolymer electrolyte, leading to the development of highly conducting ionic-liquid-doped biopolymer electrolyte-based devices such as electrochemical double-layer capacitors and dye-sensitized solar cells.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Evgeniya V. Suslova, Alexander N. Ulyanov, Alexey P. Kozlov, Denis A. Shashurin, Serguei V. Savilov, Georgy A. Chelkov
Summary: In this study, La2O3 nanoparticles stabilized on a carbon nanoflake matrix were synthesized and graphitized, and then further oxidized. The bulk and surface compositions of the samples were analyzed, and their electronic structures were assessed using electron paramagnetic resonance spectroscopy. The correlation between the compositions and electronic structures was investigated.
