154 results match your criteria: "CSIR-Central Mechanical Engineering Research Institute[Affiliation]"

Crystal arrangements with versatile architectures can be developed by varying functionalization in structurally similar building components and exploring the significance of such networking, which remains a key focus of interest in the functional world of applied inorganic chemistry. In this context, we have introduced a series of novel coordination polymers (CPs), ({[Cd(L1)(SeCN)]·0.5CHCl.

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Sulphate-modified chitosan hydrogel beads a recyclable bio-adsorbent for Cu(II): Experimental and theoretical studies toward nitrogen-/oxygen-donor selective binding and 1:1 complexation.

Int J Biol Macromol

August 2025

Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post-Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata 700106, West Bengal, India.

This study was designed to develop a chemically modified chitosan-based sustainable adsorption system for soluble metal pollutants. Here, chitosan hydrogel beads modified with sulphate-sulphuric acid presented a high adsorption capacity toward copper ions and higher reusability due to enhanced low pH tolerance. Though the adsorption process was independent of incubation temperature, it varied with the pH of solution.

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Two-dimensional coordination polymers (2D CPs), featuring unique structural architectures and outstanding electrical properties, are being explored for the fabrication of active electronic devices such as Schottky barrier diodes (SBDs), solar cells, light-emitting diodes (LEDs), field-effect transistors (FETs), and electronic sensors. Highly conjugated and redox-active ligands are among the most preferred candidates for constructing conductive 2D CPs because of their ability to facilitate efficient charge transport. Additionally, structural simplicity and long-term crystallinity are critical factors that contribute to the performance and stability of these materials in electronic applications.

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Production of sustainable green hydrogen is a topic of global interest. Electrochemical water splitting is considered as a highly promising method for generating hydrogen from water using renewable electrical energy without causing environmental pollution. Now, electrocatalysts with decent performance are used for the cathodic hydrogen evolution reaction (HER) and anodic oxygen evolution reaction (OER) in alkaline water electrolysis.

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Coordination Polymer-Based Sensors for Pesticide Detection and Decontamination.

Chem Asian J

July 2025

Department of Chemistry, Amity Institute of Applied Sciences, Amity University Kolkata, Kolkata, West Bengal, 700135, India.

The extensive use of pesticides in agriculture has enhanced both food production and pest management, but it has also raised serious ecological and human health related problems. Addressing these problems requires advanced materials for efficient pesticide detection and decontamination. From this aspect, coordination polymers (CPs) have emerged as a potential approach because of its distinctive features.

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Chlorophobic Iron Hydrogen Phosphite as OER-Active Electrocatalyst in Anion Exchange Membrane (Sea)Water Electrolysis.

Small

August 2025

Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory (NCL), Dr. Homi Bhabha Road, Pune, Maharashtra, 411008, India.

Seawater electrolysis is recognized as a promising technology to cater to the worldwide drive for sustainable hydrogen production; however, its practical viability is often hindered by the inevitable anode corrosion arising from the electrode side reactions owing to the presence of high chloride content which eventually degrade the electrode performance eventually. Herein, the design of unprecedented ammonium iron hydrogen phosphite (FeHPhi) along with a trace amount of Cu, is reported as the unique and much desired electrode material for seawater electrolysis due to its special chloride repellant nature along with great electrocatalytic activity toward water oxidation. The [HPO] oxoanion as Lewis base in the structure effectively restricts chloride ions, while the Fe center acts as Lewis acid offering an active site for water oxidation, also well-supported theoretically.

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Detailed experimental and quantum chemical investigation on polysaccharide derived from Gellan Gum as a potent and green corrosion inhibitor for mild steel in 15 % HCl.

Int J Biol Macromol

June 2025

Electric Mobility and Tribology Research Group, CSIR-Central Mechanical Engineering Research Institute, Mahatma Gandhi Avenue, Durgapur, West Bengal, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India. Electronic address:

The polysaccharide derived from Gellan Gum, coded as GGP, has been tested as an inexpensive, highly efficient and greener corrosion inhibitor for acidic corrosion (15 % HCl) of mild steel (MS). Characterization of GGP was done by FTIR, APC, and NMR studies. Gravimetric, EIS, and PDP studies were exploited to predict the corrosion inhibition efficacy of the inhibitor.

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The exponential rise in population and escalating transportation demands necessitate a strategic and sustainable approach to carbon-free infrastructure development. The continuous depletion of non-renewable fuels has already emerged as a socio-economic crisis for the next generations. To tackle this challenge, researchers are exploring alternative solutions.

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Understanding particle transport and deposition in human airway bifurcations is vital for respiratory health and inhaled therapies. CT scan images of respiratory pathways provide detailed anatomical models up to 6-12 airway generations, which are useful for airflow modelling in larger airways. However, imperfections in CT imaging, particularly at branching points, complicate the simulation of airflow and particle dynamics in smaller airways.

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Efficient, low cost and stable electrocatalysts are highly desirable for overcoming the sluggish kinetics of the oxygen evolution reaction (OER) in alkaline water electrolysis for hydrogen production. Interfacial engineering of heterostructures is quite beneficial for improving charge transfer efficiency at the interface. In this context, heterostructures of layered triple hydroxides (LTHs) and MXenes have shown great potential as OER electrocatalysts owing to their 2D-2D structure and unique physiochemical properties.

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Nanogold-albumin conjugates have garnered significant attention as a highly adaptable theranostic platform, capable of delivering a wide range of therapeutics, from small-molecule drugs to larger biomolecules, while offering promising applications for monitoring and managing cancer. The remarkable theranostic capabilities of these conjugates stem from the combined strengths of gold and albumin, which provide low toxicity, a large surface area, customizable surface chemistry, and unique optical properties, all contributing to their potential in cancer therapy. This review delves into the design and development of two primary types of nanogold-albumin conjugate: supramolecular albumin-coated gold nanoparticles (GNP-BSA/HSA) and albumin-templated ultra-small gold nanoclusters (GNC-BSA/HSA).

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Single crystals of a monophasic layered copper antimony oxy-sulfate, CuSbO(SO), have been grown by the hydrothermal technique. SCXRD study reveals that it crystallizes in triclinic symmetry (SG: 1̅) and is comprised of [SO] tetrahedra, [SbOE] trigonal bipyramids, and [CuO] square planar moieties. No structural phase transition was observed even upon lowering the temperature up to 100 K.

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Monitoring trace solvent and metal adulteration in biodiesel is crucial for quality control and commercialization. This study explores a mesoporous Cd(II)-MOF for dual-mode fluorescence sensing: "turn-on" detection of EtOH and "turn-off" monitoring of Fe in aqueous and biodiesel samples. Synthesized using N-chelating, π-conjugated 2,2'-bipyridine and μ-η,η,η bridging 5-hydroxyisophthalic acid, the MOF exhibits high phase purity, lamellar rod morphology, and high thermal stability, attributed to its robust framework, reinforced by supramolecular H-bonding and interlayer π-π stacking interactions.

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Development of CoAP protocol for communication in mobile robotic systems using IoT technique.

Sci Rep

March 2025

Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Utter Pradesh, India.

This paper proposes a novel design methodology of Constrained Application Protocol (CoAP) protocol for an IoT-enabled mobile robot system to operate remotely and access wirelessly. These devices can be used in different applications such as monitoring, inspection, robotics, healthcare, etc. For communicating with such devices, the different frameworks of IoT can be deployed to attain secured transmission using different protocols such as HTTP, MQTT, CoAP, etc.

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Sustainable plastic waste management in the prevailing 'new-normal' post-pandemic scenario calls for calorific waste plastic up-cycling into high-end product recovery pathways. The present work employed a novel dual-stage arc plasma pyrolysis reactor to recover syngas and slag products from mixed plastics and Low-Density Polyethylene and Polyethylene Terephthalate (LDPE-PET) plastic waste feeds. Syngas product yield decreased while the solid slag yield increased with rising arc current, attaining 75% and 25% for mixed plastic waste feed and 59% and 41% for LDPE-PET wastes, respectively, at 200A arc current.

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Electro-valorization of biomass-derived chemicals has ensured sustainable production of value-added products, an effective approach for reducing carbon footprint, through renewable energy. Electrochemical oxidation and reduction reactions in aqueous media using HO as a potential source for active hydrogenated and oxygenated species fulfill the purpose. In this study, Ru─CoP nanorods are explored as a bifunctional electrocatalyst toward valorization of Organics at basic media.

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We report the luminescence-based detection of Group-1 carcinogen formaldehyde (FA) and Cr(VI)-oxoanions with a mesoporous Mn(II)-MOF (1), featuring a uninodal 4-c net topology and linear 1D square channels forming a polymeric 2D network. The Mn-MOF , [Mn(phen)(hia)(HO)] was solvothermally constructed using π-conjugated, chelating phenanthroline (phen) and µ-η:η binding 5-hydroxyisophthalic acid (hia) ligands. The 2D rod-like crystallites of 1 demonstrated excellent phase purity, high thermal and photostability, and robustness under harsh conditions.

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2D MXenes have been used as electrochemical sensor materials, but their output current signal remains weak in point of care (PoC) settings. To address this issue, here we report a novel MXene-supported cobalt-MOF-based nanocomposite, which is used with a carbon black (CB) ink and 3-D printed as the CoMOF-MXene@CB layered electrode structure for the development of a sensor electrode and a PoC chip for electrochemical detection of blood creatinine with an enhanced current range, specificity, and sensitivity. The limit of detection (LOD) and sensitivity of the fabricated sensor were found to be 0.

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Article Synopsis
  • The research focuses on developing cost-effective electrocatalysts for water oxidation as part of the hydrogen economy.
  • Bamboo-derived N-doped carbon shows promise, especially when optimized with iron, achieving notable performance with an overpotential of 238 mV.
  • The electrocatalyst also performs well in alkaline saline and real seawater, showing durability over 30 hours even under high current densities.
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Numerous thiazole compounds have been developed as cutting-edge inhibitors because of a rising fascination with using corrosion inhibitors (CIs) and preventative measures to prevent mild steel (MS) from deteriorating. In this study, the ability of a novel thiazole derivative, 2-hydrazono-3-methyl-2,3-dihydrobenzo[]thiazole hydrochloride (HMDBT), to prevent corrosion of MS (MS) in HCl has been reconnoitered using various approaches, Viz. gravimetric analysis, electrochemical (EC) analysis, and different surface characterizations.

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Eugenol, the major constituent of clove oil, has been explored as an essential natural ingredient for ages owing to its versatile pharmacological properties. However, to date, the coordination chemistry of eugenol derivatives has not been much explored. In the present work, an eugenol-based Schiff base ligand (HL) was synthesized and structurally confirmed through ESI-MS, NMR, and FT-IR spectroscopy studies.

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An overview of biochar production techniques and application in iron and steel industries.

Bioresour Bioprocess

July 2024

Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle, NE1 8ST, UK.

Integrating innovation and environmental responsibility has become important in pursuing sustainable industrial practices in the contemporary world. These twin imperatives have stimulated research into developing methods that optimize industrial processes, enhancing efficiency and effectiveness while mitigating undesirable ecological impacts. This objective is exemplified by the emergence of biochar derived from the thermo-chemical transformation of biomass.

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Article Synopsis
  • - Efficient seawater electrolysis faces challenges from chloride corrosion at the anode, making the development of effective electrocatalysts crucial for enhancing electrocatalytic activity.
  • - The study introduces a high-entropy alloy-based electrocatalyst designed for optimal oxygen evolution reaction (OER) performance, showing an overpotential of 230 mV at a current density of 20 mA/cm².
  • - To further protect the anode during operation, molybdate (MoO) is used as an inhibitor that forms a protective layer against chloride while maintaining OER efficiency, demonstrating impressive stability over 500 hours at high current densities.
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A new mesoporous Mn(II)-MOF [Mn(phen)(nia)] with 4-c uninodal net topology and reiterating rectangular channels in its cargo-net like extension was synthesized using π-conjugated phenanthroline (phen) and syn-syn bridging 5-nitroisopthalic acid (nia) linkers. The MOF (1) exhibited phase purity, uniform morphology, photo and thermal stability, and robustness; duly triggered by the exceptional framework rigidity via intermolecular H-bonding and interlayer π-π stacking interactions. The bright-blue luminescence of the MOF nano-dispersion was explored for sensitive, specific and ultrafast detection of trinitrophenol (TNP) with extremely low LOD (90.

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Wire arc additive manufacturing (WAAM) holds promise for producing medium to large industrial components. Application of WAAM in the manufacturing of biomedical materials has not yet been evaluated. The current study addresses two key research questions: first, the suitability of the WAAMed Ti6Al4V alloy for biomedical applications, and second, the effect of Ti6Al4V's constituents (α and β phases) on the cell viability.

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