Article
Nanoscience & Nanotechnology
Shuting Zhang, Zhoufei Yang, Chaojie Cui, Xiao Chen, Yuntao Yu, Weizhong Qian, Yong Jin
Summary: The ultrafast frequency response supercapacitor with a special structured ionic liquid-based design exhibits excellent specific mass capacitance, ultrahigh rate, and frequency modulation performance. It shows similar or even better alternating current filtering performance compared to commercial aluminum electrolytic capacitors in various frequency ranges.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Multidisciplinary
Li Sun, Kelei Zhuo, Yujuan Chen, Quanzhou Du, Suojiang Zhang, Jianji Wang
Summary: This review introduces the use of ionic liquid (IL) electrolytes combined with redox active species to enhance the energy density of supercapacitors (SCs). The introduction of redox active species contributes to pseudocapacitance and various IL-REs and their energy storage mechanisms are discussed. Future research needs to address current challenges in order to advance this promising field.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Miaomiao Zhao, Yuchen Qin, Xinyang Wang, Lixia Wang, Qiu Jin, Meirong Song, Xiaopeng Wang, Liangti Qu
Summary: In this study, PEDOT:PSS/Ketjenblack holey nanosheets (PKHNs) were developed as electrode materials to achieve high-frequency capacitance and high capacity. The innovative structural design provides better frequency response and volumetric advantages, making them an ideal choice for next-generation miniaturized filter capacitors.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Applied
Xin Feng, Sen Wang, Pratteek Das, Xiaoyu Shi, Shuanghao Zheng, Feng Zhou, Jing Ning, Dong Wang, Jincheng Zhang, Yue Hao, Zhong-Shuai Wu
Summary: Harnessing energy from the environment promotes the development of micro-power generators and power management modules for stable direct current output. M-MSCs based on 2D Ti3C2Tx MXene fabricated using photolithography technique show excellent performance for filtering circuits and high-density integrated circuits.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Environmental
Shuaibing Wang, Dong Zhang, Xiaomin He, Jingfeng Yuan, Wenbin Que, Yongrui Yang, Iryna Protsak, Xinxin Huang, Chang Zhang, Tingxi Lu, Preeti Pal, Shanqiu Liu, Si Yu Zheng, Jintao Yang
Summary: A high strength double-network polyzwitterionic electrolyte was designed in this study by introducing water-soluble ionic liquids, showing superior mechanical strength, ionic conductivity, and temperature adaptability compared to traditional hydrogels. The optimized supercapacitor delivered high areal capacitance, excellent rate capability, and high energy/power densities, surpassing the performances of the system without polyzwitterions, indicating great potential for real wearable and implanted applications in extreme circumstances.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yueting Xu, Yanfei Zhao, Fengtao Zhang, Yuepeng Wang, Ruipeng Li, Junfeng Xiang, Zhimin Liu
Summary: The alcoholysis of propylene oxide using azolate ionic liquids at room temperature results in high yields and excellent selectivity due to the cooperative hydrogen-bonding interactions between the anion and methanol, as well as between the cation and PO.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Silke Wolf, Claus Feldmann
Summary: This article presents the synthesis and characterization of the pseudo-ternary tin(II) halide [BMPyr]2[SnCl4] by simply mixing the starting materials [BMPyr]Cl and SnCl2 at room temperature. The compound exhibits bright Sn(II)-based emission of deep-red light with a quantum yield of 88±3% after optimized synthesis. Characterization is performed using X-ray structure analysis, infrared, and fluorescence spectroscopy, and exemplary fluorescent thin films are achieved by solvent processing.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Silke Wolf, Claus Feldmann
Summary: The pseudo-ternary tin(ii) halide [BMPyr]2[SnCl4] can be easily synthesized by mixing [BMPyr]Cl and SnCl2 at room temperature without additional solvents. The compound exhibits bright deep-red emission (lambda max: 740 nm) with a high quantum yield (88 +/- 3%) after optimized synthesis. Characterization includes X-ray structure analysis, infrared and fluorescence spectroscopy. Exemplary fluorescent thin films are prepared through solvent processing.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Szilvia Vavra, Anna Martinelli
Summary: In this study, vertically oriented and hexagonally ordered pores have been synthesized and investigated in mesoporous silica thin films. Different alkyl-imidazolium ionic liquids have been used as templates to explore the effect of chain length and protic character on film formation and pore order. Various metal substrates, including indium titanium oxide (ITO) and gold, were employed for film deposition. Complementary experimental methods such as GISAXS, Infrared spectroscopy, and cyclic voltammetry were utilized to thoroughly investigate the morphology and permeability of the deposited thin films.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Chemistry, Physical
Rabia Jamil, Debbie S. Silvester
Summary: Ionic liquid gel polymer electrolytes (IL-GPEs) have attracted wide interest for their application in flexible supercapacitors. They possess attractive properties like high ionic conductivity, wide operating potential range, good thermal stability, tunable chemical functionalities, and self-healing capabilities.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Chandrakant Mukesh, Shokat Sarmad, Ajaikumar Samikannu, Dariush Nikjoo, William Siljebo, Jyri-Pekka Mikkola
Summary: In this study, porous ionic liquids (ILs) utilizing microporous ZIF-8 moieties and functional ILs were prepared and thoroughly characterized. The prepared porous ILs exhibited low viscosity, high thermal stability, and reusability, and showed enhanced CO2 sorption capacity compared to neat ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Chemistry, Physical
Apurba Ray, Bilge Saruhan
Summary: This article discusses the demand for high-performance, lightweight, and low-cost electronic devices, which has prompted research into advanced electrochemical energy storage devices and technologies. The focus is on ionic liquids as electrolytes in Li-ion batteries and supercapacitors, highlighting their potential, advantages, and challenges.
Article
Chemistry, Physical
Qing Jin, Jinwoo Park, Nayoung Ji, Mahima Khandelwal, Woong Kim
Summary: The study demonstrates that SCs with boron-doped mesoporous Ketjen black and a 6 M KOH electrolyte exhibit high areal capacitance and high frequency response. This is attributed to the improved wettability and electrical conductivity, as well as the increased number of capacitive sites due to boron-doping.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Amrita De Adhikari, Nitzan Shauloff, Yury Turkulets, Ilan Shalish, Raz Jelinek
Summary: Transition metal dichalcogenides, specifically the WS2-PANI composite electrodes, have been found to exhibit excellent electrochemical properties and high frequency response in supercapacitors. The highly porous structure of the WS2-PANI device enables rapid ion transport and surface access, contributing to the rapid reversible redox reactions and high frequency pseudocapacitive profile of the device. The symmetric WS2-PANI supercapacitor demonstrates significantly higher capacitance at a frequency of 120 Hz, showing potential for high frequency applications like AC line filtering and energy storage.
ADVANCED ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Physical
Jensheer Shamsudeen Seenath, David Pech, Dominic Rochefort
Summary: This report presents the development of a new type of micro-supercapacitor that uses RuO2 electrodes and pseudocapacitive charge storage in ionogel electrolytes. The micro-supercapacitor demonstrates extended cell voltage and higher energy density compared to conventional electrolytes. It also exhibits high areal capacitance and long-term cycling stability, making it suitable for on-chip IoT-based device applications.
JOURNAL OF POWER SOURCES
(2022)
Review
Materials Science, Multidisciplinary
Chuanlong Ma, Anton Nikiforov, Dirk Hegemann, Nathalie De Geyter, Rino Morent, Kostya (Ken) Ostrikov
Summary: This review presents recent advances in low-temperature plasma processing for controlling surface wettability. The underlying mechanisms, key features of fabrication processes, and water-surface interactions are discussed. It aims to guide further development of advanced functional materials.
INTERNATIONAL MATERIALS REVIEWS
(2023)
Article
Physics, Fluids & Plasmas
Kun Liu, Wenqiang Geng, Xiongfeng Zhou, Qingsong Duan, Zhenfeng Zheng, Kostya (Ken) Ostrikov
Summary: Two modes of the atmospheric-pressure plasma discharge, characterized by the dominant O-3 and NO (x) species, were studied using numerical and experimental methods. A global chemical kinetics model was developed to investigate the mode transition mechanisms, and it accurately described the transition. The individual and synergistic effects of discharge energy and gas temperature on species density and the relative contributions of dominant reactions were quantified under increasing discharge voltage conditions.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Darwin Kurniawan, Jacob Mathew, Michael Ryan Rahardja, Hoang-Phuc Pham, Pei-Chun Wong, Neralla Vijayakameswara Rao, Kostya (Ken) Ostrikov, Wei-Hung Chiang
Summary: This study reports the development of smart anticancer drug nanocarriers through plasma engineering technique. The nanocarriers containing chitosan and nitrogen-doped graphene quantum dots can release drugs in a pH-responsive manner and exhibit enhanced toughness. The loaded nanocarriers demonstrate improved drug loading capability and stable release, showing great potential in cancer treatment.
Article
Chemistry, Multidisciplinary
Xin Zeng, Shuai Zhang, Yadi Liu, Xiucui Hu, Kostya Ken Ostrikov, Tao Shao
Summary: To meet global net-zero emission targets, sustainable and low-carbon alternatives are urgently needed for energy-intensive industrial processes like ammonia synthesis. In this study, plasma catalysis is used to achieve renewable-electricity-driven ammonia synthesis under mild conditions. By identifying energy loss pathways and optimizing process parameters, such as pulse voltage and gap distance, high ammonia yields with high energy efficiency and low emission footprint are obtained.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Rusen Zhou, Dejiang Zhou, Baowang Liu, Lanlan Nie, Yubin Xian, Tianqi Zhang, Renwu Zhou, Xinpei Lu, Kostya Ken Ostrikov, Patrick J. Cullen
Summary: The addition of helium can enhance the synthesis of ammonia by modifying the energy transfer mechanism in the plasma, leading to more efficient activation of N2 and production of NH3.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Review
Chemistry, Physical
Tianlai Xia, Yu Yang, Qiang Song, Mingchuan Luo, Mianqi Xue, Kostya (Ken) Ostrikov, Yong Zhao, Fengwang Li
Summary: Recently, electrocatalytic reactions involving oxygen, nitrogen, water, and carbon dioxide have been developed to produce clean energy, fuels, and chemicals. Understanding catalyst structures, active sites, and reaction mechanisms is crucial for improving performance. In this review, we summarize state-of-the-art in situ characterisation techniques used in electrocatalysis, categorizing them into microscopy, spectroscopy, and other techniques. We discuss the capacities and limits of these techniques to guide further advances in the field.
NANOSCALE HORIZONS
(2023)
Review
Chemistry, Multidisciplinary
Jae Muk Lim, Young Seok Jang, Hoai Van T. Nguyen, Jun Sub Kim, Yeoheung Yoon, Byung Jun Park, Dong Han Seo, Kyung-Koo Lee, Zhaojun Han, Kostya (Ken) Ostrikov, Seok Gwang Doo
Summary: To achieve a zero-carbon-emission society, increasing the use of clean and renewable energy is crucial. However, renewable energy resources have limitations in terms of geographical locations and limited time intervals for energy generation. Therefore, there is a rising demand for high-performance energy storage systems (ESSs) to effectively store and utilize energy during peak and off-peak periods. Supercapacitors, particularly electrical double layer capacitors (EDLCs), show promise as short-term ESSs due to their long cycle retention, high power densities, fast charge/discharge characteristics, and moderate operating voltage window. However, further research is needed to increase the operating voltage and energy densities of EDLCs while maintaining long-term cycle stability and power densities, which are crucial for ESS operation. This article examines advancements in EDLC research to achieve a high operating voltage window and high energy densities for next-generation supercapacitor-based ESSs.
NANOSCALE ADVANCES
(2023)
Article
Engineering, Environmental
Zheng Bo, Zhouwei Zheng, Yanzhong Huang, Zhesong Huang, Pengpeng Chen, Jianhua Yan, Kefa Cen, Huachao Yang, Kostya Ken Ostrikov
Summary: In this study, a novel one-step MXene selenization-conversion method was proposed to achieve fast lithium-ion storage. The TiSe2@CSA nanohybrid demonstrated high capacity, improved rate capability, and long-term cyclability. The density functional theory analysis confirmed the significant role of selenium vacancies in facilitating fast Li-ion storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Zheng Bo, Yanzhong Huang, Zhouwei Zheng, Pengpeng Chen, Huachao Yang, Jianhua Yan, Kefa Cen, Kostya (Ken) Ostrikov
Summary: In this study, a capacitive hard carbon anode with multiple pore-scale and oxygen-functionality surfaces is manufactured using a sulfonation-assisted etching technique. The anode exhibits a large capacity, superior rate capability, and decent long-cycle stability. The mechanisms behind the excellent performance, including fast Na-ion migration and surface pseudocapacitive reaction, are validated by various analyses. The assembled sodium-ion capacitor delivers high energy and power densities simultaneously, showcasing its potential for practical applications.
ELECTROCHIMICA ACTA
(2023)
Article
Thermodynamics
Qian Xu, Lidong Zhu, Yanqin Pei, Caixia Yang, Di Yang, Zhiwei Liu, Ben Guan, Yujie Qiang, Huachao Yang, Yong Zang, Yulong Ding
Summary: Microencapsulated phase change materials latent functional thermal fluid (MPCM-LFTF) has been successfully applied as a cooling medium in mini-channels heat sink (MCHS). The study investigates the hydraulic and heat transfer characteristics of MCHS and reveals the relationship between the dimensionless phase transition region (DPTR) and heat transfer enhancement effectiveness. The results show that adjusting the Reynolds number and Stephan number can significantly impact the melting start point and length of the phase transition region, leading to improved heat transfer performance.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Physical
Zheng Bo, Xiangnan Cheng, Meiqi Zhou, Rui Wang, Yonghong Luo, Jianhua Yan, Kefa Cen, Huachao Yang, Kostya (Ken) Ostrikov
Summary: Thick MoS2 films with outstanding volumetric performance are fabricated using ultrasonically assisted filtration. The smaller MoS2 sheets enable strong van der Waals interactions and create highly accessible nanochannels for fast ion transport and effective electron transfer. The developed thick cell stack exhibits superior volumetric energy and power densities.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Yonghong Luo, Huachao Yang, Chongyan Ying, Rui Wang, Zheng Bo, Jianhua Yan, Kefa Cen, Kostya (Ken) Ostrikov
Summary: A low-temperature and environment-friendly approach using nonequilibrium plasmas with Ti3C2Tx dispersion is demonstrated to generate abundant and stable surface-terminating O groups. The discharge environment of Ar, O-2, and H-2 affects the structural characteristics and electrochemical performance of Ti3C2Tx nanosheets. Ti3C2Tx treated using H-2 plasmas exhibits the best capacitive performance with a capacity of 418.3 F g(-1) at 2 mV s(-1) and maintains 95.88% capacity after 10,000 cycles.
Article
Chemistry, Multidisciplinary
Hsiuan Ling Ho, Jung Yen Yang, Chun Hung Lin, Jiann Shieh, Yu Fang Huang, Yi Hong Ho, Tsung Shine Ko, Chiung Chih Hsu, Kostya (Ken) Ostrikov
Summary: The development of reliable and cost-effective molecular detection at the attomolar level on analyte-immobilizing surfaces without lithographic patterning is a challenge in chemical sensing. This study presents a novel approach using plasma etching to produce custom-designed adhesive superhydrophobic silicon nanograss surfaces. These surfaces enable effective immobilization of Ag nanoparticles and R6G target molecules, providing a reliable Raman scattering platform for detecting trace analytes. The study also introduces a plasma-enabled approach for precise interface nanostructuring, potentially leading to unprecedented capabilities in molecular-level sensing technologies.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Energy & Fuels
Lin Lin, Di Yang, Zongjie Luo, Dinghai Liu, Sunil Prasad Lohani, Shuhui Jia, Lidong Zhu, Yanqi Zhao, Huachao Yang, Qian Xu, Yulong Ding
Summary: In this paper, a two-dimensional symmetric transient numerical heat transfer model for the melting of PCM was established. The melting and heat transfer characteristics of cylindrical containers under different structural parameters and boundary conditions were investigated using a new evaluation index, the solid-liquid interface heat transfer rate. The study revealed the essence of characteristic structure optimization of cylindrical energy storage devices under different thermal boundary conditions, which improves energy storage efficiency.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Chemistry, Multidisciplinary
Jinyong Lin, Dong Li, Changhong Li, Ziqi Zhuang, Chengchao Chu, Kostya (Ken) Ostrikov, Erik W. W. Thompson, Gang Liu, Peiyu Wang
Summary: Cancer cells are more susceptible to oxidative stress and nanomaterials-based therapies that generate reactive oxygen species (ROS) have been effective in eliminating cancer cells. These therapies, including chemodynamic therapy, photodynamic therapy, sonodynamic therapy, as well as multi-modal therapies such as combination therapy, have shown significant inhibition of tumor growth. However, the limitations of multi-modal therapy in material preparation and operation protocols hinder its clinical application. Cold atmospheric plasma (CAP), as a reliable source of ROS, light, and electromagnetic fields, provides a simple alternative for implementing multi-modal treatments. Therefore, the emerging field of tumor precision medicine is expected to benefit from these promising multi-modal therapies based on ROS-generating nanomaterials and reactive media like CAPs.