Article
Nanoscience & Nanotechnology
Liang Dan, Hui Wang, Xiaobao Yang, Jiangwen Liu, Liuzhang Ouyang, Min Zhu
Summary: This study demonstrates the significant improvement of hydrogen sorption performances of MgH2 by synthesizing Nb-doped TiO2 solid-solution-type catalysts. The catalyzed MgH2 is able to absorb 5% of H2 at room temperature for 20 seconds, release 6% of H2 at 225 degrees C within 12 minutes, and achieve complete dehydrogenation at 150 degrees C under a dynamic vacuum atmosphere. The success of solid solution-type catalysts in MgH2 provides a demonstration and inspiration for the development of high-performance catalysts and solid-state hydrogen storage materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Environmental Sciences
Francis Atta Sarpong, Peter Sappor, George Nyantakyi, Owusu Esther Agyeiwaa, Isaac Ahakwa, Benjamin Blandful Cobbinah, Kalissa Fatoumata Kir
Summary: This study examines the impact of green financial development efficiency (GFDE) on China's green transformation agenda and its contributions to sustainable development. The findings show a significant improvement in GFDE from 2010 to 2020 in promoting green transformation in China. Trade openness, foreign investments, technological innovation, and government budget have positive influences on GFDE, while energy consumption and economic policy uncertainty have a significant adverse effect. The study emphasizes the importance of green finance in promoting sustainable development and suggests that the financial sector should support green technologies and businesses through a range of green products.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Jiawei Lin, Zhongnan Guo, Niu Sun, Kunjie Liu, Shihui He, Xin Chen, Jing Zhao, Quanlin Liu, Wenxia Yuan
Summary: Zinc doping is an effective route to significantly improve the stability of tetrahedral Mn hybrids under air conditions without compromising the luminous efficiency. A new bromide compound with narrow-band green-emitting peak under 450 nm excitation has been synthesized, demonstrating unique optical properties.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Houcine Touati, Afef Mehri, Fathi Karouia, Frederic Richard, Catherine Batiot-Dupeyrat, Stephane Daniele, Jean-Marc Clacens
Summary: In this study, the decomposition of ozone in the air using Pd-based catalysts supported on a hybrid TiO2 was investigated. The method showed promising catalytic activity and catalyst stability, making it an effective treatment for air in closed environments like aircraft or spacecraft.
Letter
Materials Science, Multidisciplinary
Jialong Kang, Zhenyun Tian, Dapeng Zhong, Liu Yang, Hongxia Mao, Guibao Qiu, Xuewei Lv
Summary: In this paper, the oxygen potential of Ti-H-O was calculated under different oxygen contents. It was found that the oxygen potential increased with the increase of H content in the Ti-H-O system. Thermodynamic calculations showed that introducing hydrogen effectively destabilized the Ti-O solid solutions. The spent V2O5-WO3/TiO2 catalyst was successfully reduced using a magnesiothermic as a reducing agent in a hydrogen atmosphere, resulting in TiH2 powder with an oxygen content of 0.9 wt%.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Inorganic & Nuclear
Karuppiah Nagaraj, Pilavadi Thankamuniyandi, Subramaniam Kamalesu, Snehal Lokhandwala, Nikhil M. Parekh, Subramanian Sakthinathan, Te-Wei Chiu, Chelladurai Karuppiah
Summary: This study synthesized TiO2 nanoparticles with varying amounts of silver using a convenient and cost-effective method. Ag@TiO2 NPs were produced as an alternative to traditional chemical synthesis using an aqueous extract from the Leucas Aspera plant. Analytical techniques such as UV-vis, infrared, Raman, HRTEM, XPS, XRD, SAED, and EDS confirmed the presence of anatase phase titanium dioxide. The Ag anchored TiO2 nanostructure exhibited higher photocatalytic activity for the degradation of picric acid compared to pure titanium oxide under visible-light irradiation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Organic
Dayong Sang, Bingqian Dong, Yunfeng Liu, Juan Tian
Summary: The chemoselective cleavage of C-N bonds of amides, sulfonamides, and acylsulfonamides can be achieved using aluminum halides. AlCl3 and AlI3 display complementary reactivities towards different alkyl and acyl moieties.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Rahul Upadhyay, Shashi Kumar, Sushil K. Maurya
Summary: The study reported a reusable heterogeneous V2O5@TiO2 catalyzed selective oxidation method, utilizing different mild and eco-friendly oxidants under greener reaction conditions to oxidize various functionalities.
Article
Engineering, Environmental
Kamal M. S. Khalil, Walaa A. Elhamdy, Mohamed N. Goda, Abd El-Aziz A. Said
Summary: The study focused on the catalytic conversion of methanol to dimethyl ether using phosphorous-containing activated carbon (ACP) derived from orange peel and tungsten-loaded catalysts. The research found that the W-loaded catalysts exhibited improved catalytic performance compared to ACP support, attributed to enhanced structure and thermal stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Truong Thi Vu Nu, Nhu Hoa Thi Tran, Phuoc Loc Truong, Bach Thang Phan, Minh Tuan Nguyen Dinh, Van-Phuc Dinh, Thanh Son Phan, Seongmoon Go, Mincheol Chang, Kieu The Loan Trinh, Vinh Van Tran
Summary: This study presents a novel approach to obtain carbon dots from microalgae, named microalgae-based carbon dots (MCDs), using microwave-assisted treatment. The MCDs were successfully decorated on TiO2 nanoparticles. The resulting TiO2-MCDs composite showed superior photodegradation of methylene blue compared to pristine TiO2, attributed to the electron reservoir and photosensitizing properties of MCDs. The composite photocatalyst also exhibited high photostability and recyclability.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Applied
G. Ashok Varman, K. Kalanidhi, P. Nagaraaj
Summary: A simple, sustainable, and economically feasible approach has been reported for the synthesis of Carbon Dots (CDs) using Canon Ball (CB) fruit as a biomass precursor. The synthesized CDs exhibit excellent optical properties, stability, and can selectively detect Fe3+ ions and catalytically reduce harmful textile dyes.
Article
Chemistry, Multidisciplinary
Rosilene Andrea Welter, Harrson Silva Santana, Bruna Gregatti Carvalho, Natalia Melani, Michael Oelgemoller, Lucimara Gaziola de la Torre, Osvaldir Pereira Taranto
Summary: A double immobilisation technique was developed to improve the enzymatic activity of CALB and address difficulties in lipase-catalysed reactions. The first immobilisation involved adsorption of CALB onto a TiO2 nanoparticle surface, resulting in increased enzymatic activity. The second immobilisation used calcium alginate microbeads to trap CALB(TiO2), providing high enzymatic activity and stability with easier recovery. This study presents a promising approach for enzyme immobilisation in industrial applications.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Engineering, Multidisciplinary
Abdullah Alkandary, Anil N. Netravali
Summary: This research utilized rice straws, one of the most wasted agricultural residues, to produce hybrid green composites. The rice straws were used as reinforcement by being needle-punched into jute fabric and impregnated with soy protein isolate resin. The resulting hybrid composites showed improved tensile properties compared to pure resin, but with increasing fiber content, mechanical properties decreased due to insufficient resin volume and low interfacial shear strength. The high-density low-density fibers also led to increased moisture absorption, despite the hydrophilic nature of the resin. Overall, the hybrid biodegradable composites had good potential for applications in packaging, transportation, housing, and furniture.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Alessio Zandona, Emmanuel Veron, Gundula Helsch, Aurelien Canizares, Joachim Deubener, Mathieu Allix, Cecile Genevois
Summary: This study provides new insights into the crystallization mechanism of gel-derived SiO2-TiO2 glasses, with the first direct observation of subcritical nuclei by in situ high-temperature TEM. It confirms the crucial role of medium-range compositional fluctuations and Ostwald's rule of stages in crystal nucleation in undercooled melts and glasses.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Jacqueline Torres-Liminana, Ana A. Feregrino-Perez, Marina Vega-Gonzalez, Luis Escobar-Alarcon, Jose Antonio Cervantes-Chavez, Karen Esquivel
Summary: This study successfully synthesized silver-titanium dioxide (Ag-TiO2) materials using Eucalyptus globulus extract as a reductive agent. The materials exhibited excellent antimicrobial and photocatalytic properties, making them a green option for water disinfection.
Article
Chemistry, Multidisciplinary
Ying Sun, Wei Zhang, Jian Tong, Yu Zhang, Shuyao Wu, Daliang Liu, Hisashi Shimakoshi, Yoshio Hisaeda, Xi-Ming Song
Article
Chemistry, Inorganic & Nuclear
Hui Tian, Hisashi Shimakoshi, Gyurim Park, Sinheui Kim, Youngmin You, Yoshio Hisaeda
DALTON TRANSACTIONS
(2018)
Article
Chemistry, Multidisciplinary
Ying Sun, Wei Zhang, Tian-Yi Ma, Yu Zhang, Hisashi Shimakoshi, Yoshio Hisaeda, Xi-Ming Song
Article
Chemistry, Multidisciplinary
Hui Tian, Hisashi Shimakoshi, Toshikazu Ono, Yoshio Hisaeda
Editorial Material
Chemistry, Multidisciplinary
Hisashi Shimakoshi, Hui Tian, Toshikazu Ono, Yoshio Hisaeda
Article
Chemistry, Inorganic & Nuclear
Keita Shichijo, Mamoru Fujitsuka, Yoshio Hisaeda, Hisashi Shimakoshi
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2020)
Article
Chemistry, Organic
Zhongli Luo, Kenji Imamura, Yoshihito Shiota, Kazunari Yoshizawa, Yoshio Hisaeda, Hisashi Shimakoshi
Summary: A convergent paired electrolysis catalyzed by a B12 complex has been developed for the one-pot synthesis of tertiary amides from organic trichlorides. Various readily available organic trichlorides can be converted to amides in the presence of tertiary amines through oxygen incorporation from air at room temperature. The amide formation mechanism in the paired electrolysis, mediated by a cobalt complex, was proposed.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Hisashi Shimakoshi, Yoshio Hisaeda
Summary: B12 complex shows excellent catalytic performance in electroorganic synthesis, efficiently removing organic chlorides, producing dechlorinated or oxidized products through electrolysis, catalyzing amide formation, and even enabling unique paired electrolysis. It also catalyzes the reduction of alkenes and alkynes.
Article
Chemistry, Organic
Mohammad Moniruzzaman, Yoshio Yano, Toshikazu Ono, Kenji Imamura, Yoshihito Shiota, Kazunari Yoshizawa, Yoshio Hisaeda, Hisashi Shimakoshi
Summary: A new synthetic method mediated by a B-12 derivative has been developed, which involves aerobic oxygenation to initiate the generation of a carbon-centered radical for the reactive acyl chloride intermediate and subsequent production of cyanoformamides. This method has shown high yields and scalability, with a proposed mechanism based on DFT calculations.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Jiamin Cheng, Yoshihito Shiota, Mikako Yamasaki, Kureha Izukawa, Yoshimitsu Tachi, Kazunari Yoshizawa, Hisashi Shimakoshi
Summary: The oxidation of alkanes with m-chloroperbenzoic acid (mCPBA) catalyzed by the B12 derivative, heptamethyl cobyrinate, was studied under various conditions. The reaction rate shows a first-order dependence on the catalyst and mCPBA concentrations, but is independent of the alkane concentration. The kinetic deuterium isotope effect suggests that substrate hydrogen atom abstraction is not the rate-determining step. The formation of a cobalt(III)acylperoxido complex and its role in the oxidation reaction were investigated through experimental and theoretical studies.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Keita Shichijo, Yohei Kametani, Yoshihito Shiota, Kazunari Yoshizawa, Mamoru Fujitsuka, Hisashi Shimakoshi
Summary: A dehydrocorrin complex, Co(II)-pyrocobester (P ( -Co(II) )), was semisynthesized from cyanocobalamin and its photochemical and electrochemical properties were compared to those of the cobester (C ( -Co(II) )). The UV-vis absorptions of P ( -Co(II) ) in CH2Cl2 were red-shifted due to the pi-expansion of the macrocycle in the pyrocobester. The redox couple of P ( -Co(II) ) was positively shifted compared to that of C ( -Co(II) ), coinciding with the high electronegativity of the dehydrocorrin macrocycle. The reactivity of P ( -Co(I) ) was evaluated by its reaction with methyl iodide.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yuki Anai, Keita Shichijo, Mamoru Fujitsuka, Yoshio Hisaeda, Hisashi Shimakoshi
CHEMICAL COMMUNICATIONS
(2020)
Article
Chemistry, Multidisciplinary
Li Chen, Yohei Kametani, Kenji Imamura, Tsukasa Abe, Yoshihito Shiota, Kazunari Yoshizawa, Yoshio Hisaeda, Hisashi Shimakoshi
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Inorganic & Nuclear
Koichi Hashimoto, Taro Koide, Toru Okawara, Hisashi Shimakoshi, Yuta Hori, Yoshihito Shiota, Kazunari Yoshizawa, Yoshio Hisaeda
DALTON TRANSACTIONS
(2019)
Article
Chemistry, Multidisciplinary
Hui Tian, Hisashi Shimakoshi, Kenji Imamura, Yoshihito Shiota, Kazunari Yoshizawa, Yoshio Hisaeda
CHEMICAL COMMUNICATIONS
(2017)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
