Article
Chemistry, Inorganic & Nuclear
Nazir Ahmad Mala, Mohd Arif Dar, Mehraj ud Din Rather, S. Sivakumar, Shahid Husain, Khalid Mujasam Batoo
Summary: In this report, Zn and Mn co-doped NiO nanostructures were successfully prepared with improved electrochemical performance. The co-doped nanostructures exhibited enhanced specific capacitance and power density, making them a promising candidate for high-performance supercapacitors by improving the availability of ions in the electrodes for charge storage and rate performance.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Olga Lebedeva, Dmitry Kultin, Leonid Kustov
Summary: This review explores the characteristics of electrochemical synthesis of nanostructures in ionic liquids, emphasizing the production of various nanomaterials and nanoscale polymer films. It highlights the potential application of ILs as an electrochemical medium and the relative simplicity of experimental procedures.
Article
Chemistry, Physical
Beichen Liu, Wenxiao Guo, Matthew A. Gebbie
Summary: In this study, we investigate the influence of ionic correlations on the reaction rates and selectivity of CO2 electroreduction. Through experiments, we find that at intermediate concentrations, the reduction rates of CO2 are accelerated and the efficiency of CO production is enhanced. The acceleration of CO2 reduction is due to the amplification of potential-dependent driving forces, rather than changes in onset potential. These findings are applicable to both cocatalytic and noncatalytic ions.
Article
Chemistry, Multidisciplinary
Oriele Palumbo, Giovanni Battista Appetecchi, Giovanna Maresca, Jean-Blaise Brubach, Pascale Roy, Simone Di Muzio, Francesco Trequattrini, Delphine Bordignon, Florine Legrand, Anais Falgayrat, Rongying Lin, Sebastien Fantini, Annalisa Paolone
Summary: In this study, novel ionic liquid electrolytes were successfully synthesized and investigated. These electrolytes exhibited high thermal stability and glass transition characteristics at low temperatures. The infrared spectroscopy measurements and ion transport properties of the electrolytes were in good agreement with calculations. Furthermore, the electrolytes showed remarkable electrochemical stability at high voltages, making them suitable for high reliability lithium battery systems.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Kun Yuan, Kehuai Feng, Sheng Liao, Xiaoning Liao, Yichen Zou, Dan Hou, Xuliang Nie, Wanming Xiong
Summary: In this study, a series of phenyl-coupled diimidazolium hexafluorophosphate ionic liquids (P-DRIMF) with different R-groups were synthesized and characterized. The electrochemical properties of these ILs, such as the electrochemical window and stability, were investigated. The results showed that extending the alkyl sidechain of the imidazolium ring increased the electrochemical window, while the presence of unsaturated vinyl groups had a negative effect. Modified glassy carbon electrodes exhibited improved electrochemical response, particularly for phenolic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Gulbahar Bilgic, Nesrin Korkmaz, Mukerrem Sahin, Ahmet Karadag
Summary: A new boron-based room-temperature ionic liquid (BBRTIL) was synthesized and characterized in this study. The composition, thermal behavior, physical, and electrochemical properties of the BBRTIL were determined using various analytical techniques. The correlation between electrochemical stability and electrolyte equilibrium species was also investigated. The BBRTIL shows great potential as an alternative method for the deposition of elemental boron.
Article
Chemistry, Analytical
Simon Doblinger, Catherine E. Hay, Liliana C. Tome, David Mecerreyes, Debbie S. Silvester
Summary: This research investigates the use of mixed membranes composed of conductive poly(IL)s and ionic liquids in amperometric gas sensors. The study finds that the membranes exhibit high robustness and non-flowing properties, while also showing excellent and reproducible analytical responses towards gases. The results demonstrate the potential of these membranes as designer gas sensor materials for robust sensor devices.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Minami Oka, Satoshi Honda
Summary: The study presents an electrochemical route for chain extension and topological transformations of poly(dimethylsiloxane), addressing the wasteful issue of polymer-polymer coupling reactions using excess chemical oxidants.
COMMUNICATIONS CHEMISTRY
(2021)
Article
Chemistry, Physical
Jaganathan Joshua Raj, Kallidanthiyil Chellappan Lethesh, Eswaran Padmanabhan
Summary: Research on ionic liquids focuses on investigating the properties of ILs salt-solvent mixtures (SSMs), which have gained popularity for their wide range of properties necessary for various applications. The study synthesized imidazolium ILs with different ether groups and investigated their thermodynamic properties and electrical conductivity. The results showed that SSMs have high conductivity at low fluidity, categorized as 'super ionic liquids', indicating excellent potential for electrochemical applications.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Onajite T. Diejomaoh Abafe, Muhammad Mohsin Azim, Bice S. Martincigh, Annegret Stark
Summary: This study investigates the physicochemical properties of a series of cation-fluorinated ionic liquids and provides experimental evidence for nanosegregation and triphilicity in these liquids. The introduction of fluoroalkyl chains enhances hydrogen bond interactions between anions and cations and leads to structural rearrangements. The study also demonstrates the use of a group contribution method to predict the density of the liquids.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Qi Han, Stuart J. Brown, Calum J. Drummond, Tamar L. Greaves
Summary: Ionic liquids are widely used as solvents for proteins in various fields such as biotechnology, pharmaceutics, and medicine due to their tunable properties. Recent studies have identified key properties of ILs and IL-water mixtures related to protein performance, suggesting the potential for using ILs to inhibit protein aggregation and control protein behavior. This review aims to inspire further advances in understanding protein behavior and optimizing bioprocesses.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Review
Engineering, Chemical
M. Faizan, Raziuddin Ahmed, Hafiz Muhammad Ali
Summary: This study reviews the synthesis, thermophysical and electrochemical properties of Ionanofluids (INFs), as well as their wide range of applications. A comparison between different INFs based on their combination and composition is conducted, while also addressing the challenges and hurdles associated with INFs.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Engineering, Environmental
Benoit Villemejeanne, Sophie Legeai, Eric Meux, Sandrine Dourdain, Hakima Mendil-Jakani, Emmanuel Billy
Summary: The one-step electroleaching-electrochemical deposition process using ionic liquid mixtures is a promising alternative for palladium and gold recovery, with chloride-based mixtures proving to be the most suitable electrolyte. The use of low viscous electrolytes allows for metal leaching at low anodic potential, leading to a more sustainable process compared to conventional processes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Analytical
Silvia Mena, Esteve Ribas, Clara Richart, Iluminada Gallardo, Jordi Faraudo, Scott K. Shaw, Gonzalo Guirado
Summary: The paper focuses on the role of carbon dioxide in controlling the Earth's temperature and the environmental problems caused by its increased concentration in the atmosphere. It discusses the use of ionic liquids for efficient CO2 capture and conversion, utilizing electrochemical, spectroscopic, and molecular dynamics techniques to understand the reduction mechanism under various conditions. The research opens up possibilities for theoretical-experimental approaches to determine the CO2 reduction mechanism and the dependency of product formation on the electrode material and solvent used.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Erik Piatti, Luca Guglielmero, Giorgio Tofani, Andrea Mezzetta, Lorenzo Guazzelli, Felicia D'Andrea, Stefano Roddaro, Christian Silvio Pomelli
Summary: Ionic gating is an effective tool for tuning material properties and developing low-temperature devices. Ionic liquids are promising gating agents due to their high thermal and electrochemical stability. This study aims to determine guidelines for synthesizing ionic liquids suitable for low-temperature electrolytes. Experimental results show that cations affect both cathodic and anodic limits, asymmetric ammonium cations have higher electrochemical stability, longer chain lengths decrease electrochemical stability, alkyl long chains have larger anodic limits but smaller cathodic limits compared to ether long chains of the same length, and the ether chain with the largest electrochemical stability contains three carbon atoms and one oxygen.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Electrochemistry
Tomohiro Yoshida, Daisuke Takimoto, Dai Mochizuki, Wataru Sugimoto
Article
Chemistry, Multidisciplinary
Muhammad Shuaib Khan, Hyung-Jun Kim, Yoon-Hyun Kim, Yasuo Ebina, Wataru Sugimoto, Takayoshi Sasaki, Minoru Osada
Article
Electrochemistry
Seongki Ahn, Minori Fukushima, Hiroki Nara, Toshiyuki Momma, Wataru Sugimoto, Tetsuya Osaka
Summary: The study found that the use of fluoroethylene carbonate (FEC) increased internal resistance and decreased the cyclability of LIC full-cells, while LICs with vinylene carbonate (VC) additives exhibited good cyclability over 4000 cycles due to the presence of polymeric species in the solid electrolyte interphase (SEI). This detailed investigation into the function of SEI compounds derived from VC additives and their effect on cyclability will provide new insights into optimizing LIC full-cell configurations with appropriate electrolyte additives.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Wataru Sugimoto, Daisuke Takimoto
Summary: The advancement in synthetic materials chemistry has led to the development of a new family of two-dimensional nanostructures, particularly platinum group metal oxide nanosheets and platinum group metal nanosheets, which have a wide range of potential applications.
Article
Nanoscience & Nanotechnology
Daisuke Takimoto, Sho Hideshima, Wataru Sugimoto
Summary: In this study, a 3D structure made of NiO nanowalls with a thickness of 2-3 nm (3D-NiO) was fabricated, exhibiting a specific surface area of 42 m(2) g(-1), 2.6 times larger than that of NiO nanoparticles. The specific capacity of 3D-NiO was found to be 2.5 times higher than that of NiO nanoparticles, attributed to the large specific surface area due to thin nanowalls.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Ryota Saito, Hideki Tanaka, Katsuya Teshima, Daisuke Takimoto, Sho Hideshima, Wataru Sugimoto
Summary: Birnessite manganese oxide is a promising candidate for aqueous supercapacitors due to its pseudocapacitance. By doping with iridium, the electronic conductivity and charge storage capability of birnessite can be improved.
INORGANIC CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Daisuke Takimoto, Keisuke Suzuki, Ryusuke Futamura, Taku Iiyama, Sho Hideshima, Wataru Sugimoto
Summary: In this study, the micropore-confinement effect is utilized to reduce the activation barrier of quinone-based redox-active molecules adsorption, resulting in a zero-overpotential redox reaction. This technique has the potential to guide the development of high-performance, rapid charging/discharging electrodes for energy-storage devices such as batteries, supercapacitors, and hybrid devices using organic materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Kazutaka Sonobe, Satoshi Tominaka, Wataru Sugimoto
Summary: Atomic arrangements and their symmetries play a crucial role in determining the physical properties of materials. In this study, we investigate the effect of symmetric breakage on chemically exfoliated ruthenate nanosheets, leading to a semimetallic state. Our findings highlight the importance of symmetric analysis in understanding low-dimensional materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Daisuke Takimoto, Shino Toma, Yuya Suda, Tomoki Shirokura, Yuki Tokura, Katsutoshi Fukuda, Masashi Matsumoto, Hideto Imai, Wataru Sugimoto
Summary: We synthesized double-layer Pt nanosheets with a thickness of 0.5 nm by reducing single-layer PtOx nanosheets exfoliated from layered platinic acid. The ORR activity of these Pt nanosheets is twice that of conventionally used 3 nm-sized Pt nanoparticles due to their large electrochemically active surface area (124 m(2) g(-1)). These Pt nanosheets show great potential in reducing Pt usage by enhancing ORR activity and offer strategies for designing advanced catalysts superior to traditional nanoparticle systems in fuel cells, rechargeable metal-air batteries, and fine chemical production.
NATURE COMMUNICATIONS
(2023)
Article
Electrochemistry
Daisuke Takimoto, Keisuke Suzuki, Sho Hideshima, Wataru Sugimoto
Summary: Pseudocapacitive flowable electrodes with redoxactive organic materials confined in micropores of activated carbon exhibit bellshaped cyclic voltammograms and show a charge-transfer-controlled mechanism, which inhibits the fast charging and discharging of the electrode.
Article
Chemistry, Multidisciplinary
Yoshiaki Ishihara, Takanori Koitaya, Yuto Hamahiga, Wataru Sugimoto, Susumu Yamamoto, Iwao Matsuda, Jun Yoshinobu, Ryo Nouchi
Summary: This study reports on the successful induction and electrical detection of methane oxidation reaction at room temperature using IrO2 nanosheets. The electrical resistance of the atomically thin IrO2 nanosheet films decreases upon exposure to methane and disappears when simultaneously exposed to oxygen, indicating the oxidation of methane using lattice oxygen of the nanosheets. The ability of IrO2 nanosheets to oxidize methane down to 300 K is confirmed, making it an important example of monitoring chemical reactions using electrical resistance changes.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Electrochemistry
Daisuke Takimoto, Keisuke Suzuki, Sho Hideshima, Wataru Sugimoto
Summary: Redox-active organic materials have advantages such as low cost and flexible design, making them promising alternatives to inorganic electrode materials in electrochemical devices. However, their electrochemical reactions are typically slow due to slow diffusion of organic materials in electrolyte. This study reports an approach to achieve an adsorption-controlled redox reaction of quinone-based molecules and analyzes their reaction environment.
Article
Chemistry, Physical
Yamato Haniu, Hiroki Nara, Seongki Ahn, Toshiyuki Momma, Wataru Sugimoto, Tetsuya Osaka
Summary: This study introduces metal chloride-pillared graphite as the negative electrode for LICs for the first time, showing higher energy and power densities as well as stable cycling performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Electrochemistry
Seongki Ahn, Yusuke Nakamura, Hiroki Nara, Toshiyuki Momma, Wataru Sugimoto, Tetsuya Osaka
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Electrochemistry
Seongki Ahn, Yamato Haniu, Hiroki Nara, Toshiyuki Momma, Wataru Sugimoto, Tetsuya Osaka
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
