Article
Chemistry, Physical
Dadamiah P. M. D. Shaik, M. V. Sasi Kumar, P. Naresh Kumar Reddy, O. M. Hussain
Summary: Manganese and cobalt oxide nanocrystals were synthesized via a simple and low-cost combustion method, with detailed studies on their structural, optical, magnetic, and electrochemical properties. The Mn3O4 nanocrystals exhibited excellent performance in electrochemical capacitors, while the poor electrochemical behavior of Co3O4 suggests that Mn3O4 nanocrystals are superior electrode materials.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Materials Science, Multidisciplinary
Ruyi Zou, Lin Zhu, Lijun Yan, Bo Shao, Hui Cheng, Wei Sun
Summary: A meshy biomass carbon was prepared using kelp as the carbon precursor, and Co3O4 nanoparticles were modified on it to form a Co3O4@MBC composite. This composite exhibited excellent electrochemical performance with high specific capacitance and cycle stability. It can be used as an electrode for supercapacitors and has potential applications in efficient energy storage devices.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Anjum Afrooze, Dadamiah P. M. D. Shaik
Summary: This study presents a solution combustion approach to produce marigold Co3O4 nanoparticles as potential electrode material for supercapacitors. The effect of vacuum annealing on the microstructural and electrochemical properties is explored, and the prepared nanoparticles exhibit high specific capacitance and electrochemical stability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Materials Science, Ceramics
Basit Ali Khan, Rafaqat Hussain, A. Shah, Arshad Mahmood, Muhammad Zia Ullah Shah, Javaid Ismail, Shams ur Rahman, Muhammad Sajjad, Mohammed A. Assiri, Muhammad Imran, Muhammad Sufyan Javed
Summary: With the depletion of fossil fuels and increasing environmental contamination, there is a growing demand for renewable and sustainable energy conversion and storage devices. In this study, nickel diselenide (NiSe2) structures wrapped with various rGO weight ratios were fabricated and their structural, morphological, and electrochemical characteristics were systematically studied. The NiSe2-16% rGO electrode exhibited superior supercapacitive performance, high specific capacitance, excellent cycling stability, and rapid ion/electron transit. An asymmetric supercapacitor with NiSe2-16% rGO as anode showed a high energy density and retained 99% of capacitance after 8000 repeated cycles.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Zhiqin Deng, Chaoqun Ma, Zerong Li, Yongsong Luo, Longcheng Zhang, Shengjun Sun, Qian Liu, Juan Du, Qipeng Lu, Baozhan Zheng, Xuping Sun
Summary: This study demonstrates that Co3O4 nanosheet array with cobalt vacancies can enhance the efficiency of nitrate reduction reaction and achieve carbon-free ammonia synthesis with high yield.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Yanjun Zhang, Liu Chang, Xiaokai Chang, Hongmei Chen, Yuankai Li, Yanyun Fan, Jun Wang, Danfeng Cui, Chenyang Xue
Summary: The Co3O4/g-C3N4 composite electrode synthesized by a combination of in-situ precipitation and carbon-assisted methods exhibits higher specific capacitance and superior cycling stability in supercapacitors, along with excellent electrical conductivity and low resistance. Furthermore, the Co3O4/g-C3N4//AC asymmetric device using this electrode delivers promising energy density and power density, indicating great potential for application in supercapacitors.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Electrochemistry
Dandan Yang, Mai Xu, Xian Liang, Jiayi Wang, Wenyan Fang, Chuangao Zhu, Fengwu Wang
Summary: In this study, Pr2O3-doped Co3O4 nanoflakes were synthesized as electrode materials for high-performance supercapacitors. The synthesized nanoflakes showed excellent electrochemical performance, with high specific capacitance and good capacitance retention. Furthermore, an asymmetric capacitor composed of Pr2O3/Co3O4 electrodes and activated carbon electrodes achieved high energy density and capacity retention.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Damian Paliwoda, Davide Comboni, Tomasz Poreba, Michael Hanfland, Frederico Alabarse, David Maurin, Thierry Michel, Umit B. Demirci, Jerome Rouquette, Francesco di Renzo, Arie van der Lee, Samuel Bernard, Julien Haines
Summary: Research shows that under high-temperature, high-pressure conditions, ammonia borane can be converted into polyaminoborane and polyiminoborane chains, releasing a large amount of hydrogen. This process is accompanied by a significant increase in unit cell volume and phase transition, leading to a higher hydrogen adsorption capacity for the material.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Energy & Fuels
Samaneh Mahmoudi Qashqay, Jamal Rahimi, Mohammad-Reza Zamani-Meymian, Ali Maleki
Summary: By utilizing the self-supporting binder-free hierarchical Co3O4/VS4/rGO-SDBS@NF composite electrode, a facile and efficient two-step hydrothermal process is employed to maximize the performance of supercapacitors. The composite electrode exhibits a specific capacitance of 2620 F g-1 at 1 A g-1, significantly higher than the VS4/rGO-SDBS@NF composite electrode at 284 F g-1 in a 6 M KOH solution. Furthermore, the as-grown electrode Co3O4/VS4/rGO-SDBS@NF composite demonstrates excellent cycling stability, retaining 97.4% of its initial capacitance after 5000 cycles.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Serdar Akbayrak, Saim Ozkar
Summary: The development of a new platinum nanocatalyst with superb catalytic activity and excellent reusability for hydrogen generation from ammonia borane has been reported. The catalyst shows the highest turnover frequency among reported platinum nanocatalysts developed for this purpose.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Fengjiao Chen, Yong Zhang, Dongyue Wang, Tian Wang, Jianhua Zhang, Dongzhi Zhang
Summary: This paper presents a room temperature NH3 gas sensor based on cobalt trioxide and molybdenum telluride nanocomposite, which exhibits excellent sensing performance for ammonia. The sensor shows high response, excellent selectivity, good stability, short response recovery time, and low detection limit.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Electrochemistry
Lingxia Zheng, Penghui Xu, Yijian Zhao, Jiaxi Peng, Pengju Yang, Xiaowei Shi, Huajun Zheng
Summary: A binder-free composite electrode material with a unique core-shell structure has been facilely prepared through a hydrothermal-solvothermal combined method. The material shows remarkable capacitance performance and cycle life, demonstrating its potential for high performance energy storage devices.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Hui-Ze Wang, You-Xiang Shao, Yu-Fa Feng, Yu-Jie Tan, Qing-Yu Liao, Xiao-Dong Chen, Xue-Feng Zhang, Zhao-Hui Guo, Hao Li
Summary: In this study, Co3O4-SnO2 catalysts containing oxygen vacancy (V-o) with different Co/Sn atomic ratios were synthesized and showed high catalytic performance and stability for the dehydrogenation of ammonia borane (AB). Diversified characterization and DFT calculation confirmed the electron transfer and charge distribution on the SnO2-Co3O4 interface, which enhanced water adsorption and activation, accelerating the rate-determining step of AB hydrolysis. The oxygen vacancy adjusted the electron structure of the catalysts rather than acted as active sites.
Article
Materials Science, Multidisciplinary
Jong-Hwa Hong, Hyunki Kim, Sangwook Han, Yong-Nam Kwon, Hyeonil Park, Daeyong Kim
Summary: The bendability of high-strength aluminum alloy sheets with different thicknesses was experimentally evaluated, and a numerical simulation method was attempted to understand the characteristics of the V-die air bending method. The experimental results showed similar bendability along the material direction, but different fracture strains were predicted for each direction based on punch force and displacement information. The numerical simulation results indicated that the bendability along the rolling direction is higher than that along the transverse direction, and thinner materials exhibit higher anisotropic bendability.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
G. Maheshwaran, G. Seethalakshmi, V. Kousalya Devi, Lappasi Mohanram VenkataKrishna, M. Ramesh Prabhu, M. Krishna Kumar, S. Sudhahar
Summary: In this study, a chromium oxide-cobalt oxide based nanocomposite was successfully synthesized via the hydrothermal approach. The nanocomposite exhibited high specific capacitance, good rate capability, and excellent cyclic stability, demonstrating its great potential for supercapacitor applications.
CURRENT APPLIED PHYSICS
(2022)
Review
Biochemistry & Molecular Biology
Teresa Aditya, Jean Paul Allain, Camilo Jaramillo, Andrea Mesa Restrepo
Summary: Bacterial cellulose is a naturally occurring polysaccharide with various biomedical applications. It possesses remarkable biocompatibility and mechanical properties, making it suitable for tissue replacement. This review discusses the structure, mechanical properties, and characterization techniques of bacterial cellulose. It also explores the functionalization and surface modification methods to enhance its functionality.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Environmental
Utpal Ghosh, Anjali Pal
Summary: An all-solid-state Z scheme composite with excellent photocatalytic degradation performance and stability has been successfully designed through a single-step hydrothermal treatment.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Ankush Majumdar, Utpal Ghosh, Anjali Pal
Summary: A 2D-Bi4NbO8Cl nanosheet (BNOCF) photocatalyst was fabricated using a molten salt or flux method and exhibited a higher degradation efficiency towards tetracycline (TCH) compared to bulk-Bi4NbO8Cl (BNOCS). The increased efficiency was attributed to the 2D architecture of BNOCF, which provided a larger surface area and reduced charge recombination rate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yu-Rim Hong, Soumen Dutta, Sun Woo Jang, Odongo Francis Ngome Okello, Hyeonae Im, Si-Young Choi, Jeong Woo Han, In Su Lee
Summary: This study addresses the inefficient interfacial contact effect in Pt-catalyzed alkaline hydrogen evolution reaction (HER) by producing atomically flat two-dimensional Pt nanodendrites (2D-PtNDs) and realizing a maximized and firmly bound lateral heterointerface with NiFe-layered double hydroxide (LDH). This work demonstrates the importance of shape and facet of Pt in creating heterointerfaces that provide catalytic synergy for efficient hydrogen production.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Amit Kumar, Soumen Dutta, Seonock Kim, Taewan Kwon, Santosh S. Patil, Nitee Kumari, Sampathkumar Jeevanandham, In Su Lee
Summary: Nanomaterials with unique structures and compositions can exhibit exotic physicochemical properties and have various applications. Solid-state reaction synthesis offers potential for scalable access to a wide range of crystal phases and intricate compositions. However, controlling nanoscale features through solid-state reactions requires a strategic nanospace-confinement approach to avoid heat-induced reshaping and sintering.
Review
Engineering, Environmental
Ankurita Nath, Subhadeep Biswas, Anjali Pal
Summary: Continuous release of synthetic organic pollutants in the ecosystem, such as Bisphenol A (BPA), poses a global concern due to their toxicity and persistent nature. This review focuses on the investigation of heterogeneous catalysts used for the degradation of BPA through Fenton-like reactions, which are commonly employed for wastewater remediation. The review documents the application of various Fenton catalysts, their morphological characteristics, oxidizing properties, toxicity analysis, and the current state of BPA degradation. Challenges and prospects for analyzing degradation products of landfill leachate are also highlighted.
WATER SCIENCE AND TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Utpal Ghosh, Anjali Pal, Tarasankar Pal
Summary: In recent years, there has been great interest in near-infrared (NIR) active photocatalysts for their ability to harvest solar NIR energy. However, the quick energy relaxation of plasmon-generated hot electrons hinders their application in photocatalysis. This review summarizes the recent progress in plasmon-induced NIR active photocatalysis and discusses the drawbacks, solutions, and potential of non-noble metal plasmonic photocatalysis.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Ankurita Nath, Subhadeep Biswas, Preeti Pal, Anjali Pal
Summary: In this study, chitosan hydrogel beads and surfactant-modified chitosan hydrogel beads were used to remove Cu(II) ions from aqueous solutions, and the waste beads loaded with Cu(II) ions were used as catalysts for the reduction of 4-nitrophenol. The results showed that the surfactant-modified beads exhibited superior catalytic performance compared to the normal beads.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Imon Kalyan, Subhadeep Biswas, Tarasankar Pal, Anjali Pal
Summary: This study prepared zero valent arsenic nanoparticles in two different size ranges and used them to synthesize silver nanoparticles. The prepared nanoparticles were immobilized onto surfactant-modified silica and used as catalysts for the reduction of 4-nitrophenol. The homogeneous catalysts were found to be more efficient than the supported catalysts. In addition, smaller sized nanoparticles showed higher reaction rates in both homogeneous and heterogeneous catalytic reactions.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Yu-Rim Hong, Sungho Choi, Soumen Dutta, Insu Jeong, Soojin Park, In Su Lee
Summary: By utilizing 1 nm-thin Ni3CoOx nanosheets, the efficient confinement effect of nanospace enables high-rate capability, outstanding cycle stability, and high Coulombic efficiency, which has not been achieved with other transition-metal oxides.
Article
Materials Science, Multidisciplinary
Subhadeep Biswas, Anjali Pal
Summary: This study demonstrates a novel protocol for the treatment of dye wastewater and selective extraction of desired dye using biopolymer composite hydrogel beads. The application of biopolymers for wastewater treatment and resource recovery from the waste stream is of great significance. The results also show that the biopolymer composite beads exhibit good reusability and high recovery rate in real wastewater.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Byeong Su Gu, Soumen Dutta, Yu-Rim Hong, Odongo Francis Ngome Okello, Hyeonae Im, Seungil Ahn, Si-Young Choi, Jeong Woo Han, Sunmin Ryu, In Su Lee
Summary: By modifying the surfaces of 2D-Pt nanodendrites, Pd and Ni were successfully deposited on the {110} facet and {111/100} edge, respectively, forming heterointerfaces. These differently located heterointerfaces exhibited different electronic effects, leading to different electrocatalytic activities in the hydrogen evolution reaction. The edge-located n-Ni showed faster water dissociation and outperformed the facet-located e-Pd in terms of catalytic activity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Soumen Dutta, Akshay Gurumoorthi, Shinbi Lee, Sun Woo Jang, Nitee Kumari, Yu-Rim Hong, Wonyong Choi, Chang Yun Son, In Su Lee
Summary: By utilizing few-nm-thin two-dimensional nanocrystals of MOF-5, a crystal lattice-guided wet-chemical etching process has been developed to regulate attractive pore patterns on the MOF surface. The optimized etching process produces size-tunable fractal-pores that enhance the activity and stability of the supported catalyst in photoelectrochemical CO2-to-CO reduction. The long-range fractal opening in the 2D MOF support structure facilitates cross-interface charge transportation and exposure of immobilized Re-I-catalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Biomedical
Ana Civantos, Andrea Mesa-Restrepo, Yadir Torres, Akshath R. Shetty, Ming Kit Cheng, Camilo Jaramillo-Correa, Teresa Aditya, Jean Paul Allain
Summary: Chemical and physical surface modification methods, such as direct irradiation synthesis (DIS), have been successfully used to address stress shielding and osseointegration challenges in bone regeneration. DIS generates self-organized nanopatterns on the surface of materials, enhancing their mechanical properties and topography for better osseointegration. By adjusting the volume percentage of spacer NaCl particles, the porosity and morphology of the material can be controlled. These nanoscale features are biocompatible and promote cell differentiation and mineralization, making them promising for bone tissue engineering.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2023)
Article
Materials Science, Multidisciplinary
Ankurita Nath, Subhadeep Biswas, Anjali Pal
Summary: In this study, eggshell powder (ESP) was used as a selective heterogeneous catalyst for the oxidative degradation of crystal violet (CV) dye in aqueous media. ESP acted as a carbonate (CO32) source, facilitating the formation of carbonate anion radicals (CO3 (center dot-)) in the presence of H2O2. The combination of these radicals and center dot OH radicals led to the selective degradation of CV dye. The use of ESP as a catalyst offers a promising route for CV degradation and the utilization of eggshell waste.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
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)
