Synthesis and characterisation of graphene hybrid nanoarchitechures for potential sensing applications

 The main focus of our project is to find a novel method to construct graphene hybrid systems and functionalised AuNPs with graphene which opens a new pathway for the potential and highly sensing applications in the area of graphene hybrid nanoarchitecture such as actuators and touch sensors. Adsorption of different CH3 and COOH alkanethiols on the surface of modified Au electrode with different CRGO\u27s sheets to increase the efficient electron pathways for the development of new class graphene electrodes

A review of different models, mechanisms, theories and parameters in tuning the specific heat capacity of nano-phase change materials

Cost-effective energy storage plays a critical role in transitioning towards a low-carbon society. Energy can be effectively stored as heat or electricity. Among various storage methods for high-temperature applications, molten salt tanks have gained significant popularity. Notably, molten salt tanks are 33 times more cost-effective than electric batteries in terms of storing a kilowatt-hour. Due to their favourable thermophysical properties, molten salts are the predominant phase change materials (PCMs) utilized for storage. Specifically, the specific heat capacity of the material is of particular interest when evaluating its thermal storage capacity, particularly in solar power plants. However, its low specific heat capacity is a major barrier to the widespread use of molten salt technology in energy storage applications. Therefore, minute quantities of nano-scaled particles within the molten salt mixture are important in enhancing the specific heat capacity (Cp). Consequently, studying these particles and their unpredictable nature has become a continuous research focus, with a clear understanding of the observed changes in specific heat capacity yet to be achieved. This article comprehensively reviews recent developments in theoretical models and mechanisms underlying heat capacity enhancement. Furthermore, it meticulously examines the influence of nanoparticle (NP) morphology (size, shape, and surface chemistry) as well as nanoparticle concentration on specific heat capacity, alongside the mechanisms contributing to enhanced thermal conductivity. Additionally, the impact of various factors such as heating rates, physical models, different differential scanning calorimetry (DSC) methods, sample moisture, and sample geometry on the specific heat capacity of the material is thoroughly considered and analyzed. By carefully assessing these parameters and conditions, including heating rate, geometry, and models/methods, this review offers valuable insights into selecting nanofluids with increased heat capacity for practical applications. Finally, the review highlights the key challenges and research gaps that need to be addressed for future advancements in nanofluid development and concludes by summarizing the main findings

A STUDY ON THE LOCALIZED CORROSION INHIBITION FOR MILD STEEL IN SALINE SOLUTION

In this study, 0.45 mM yttrium 4-nitrocinnamate (Y(4NO2Cin)3) embedded in various aqueous chloride solutions, which has been studied as a possible localized corrosion inhibition system using electrochemical techniques and surface analysis. Furthermore, a wire-beam electrode (WBE) exposed to NaCl solutions containing Y(4NO2Cin)3 compound. The results indicated the possible application of a WBE in simulating and monitoring the localized corrosion inhibition. Moreover, Y(4NO2Cin)3 compound showed an excellent localized corrosion inhibition at 0.01 M due to high inhibition performance and good protective film formation. It also indicated that addition of 0.45 mM Y(4NO2Cin)3 compound increased the localized corrosion inhibition with a decrease of the Clˉ ion concentration in the investigated solutions. A new method of localized corrosion inhibition estimation has been developed using a WBE which shows a consistent result with electrochemical and surface analysis data. In addition, other electrochemical techniques and surface analysis are also used for not only ensuring but also confirming the localized corrosion inhibition.

Meta data analysis on building thermal management using phase change materials

Despite the extensive research conducted on phase change materials (PCM) and their effect on thermal comfort in buildings around the globe, there is still a lack of clarity regarding the direction of development and performance in this field of study. A comprehensive analysis employing bibliometrics and text-mining techniques was conducted to provide a multi dimens-ional overview on the role of PCMs in building thermal management. The Web of Science database was mined to collect research publication patterns and information across three decades concerning PCM deployment in building thermal management. Vos Viewer, Biblioshiny, Microsoft Excel, and orange data mining were used to analyze the corpus. The publications tally in this domain was comparatively low till 2005 but saw a dramatic uptick from 2016 onwards. China (215), India (71), and Italy (47) have the highest publication count. Finland (234) and New Zealand (166.1) have the highest average article citations. Zhang Zhengguo has authored the most papers in this discipline (17 publications). Still, Farid, Mohammed M (1571) and Luisa F. Cabeza (1405) are highly cited authors. Phase change material is the most used keyword. Additional findings include prominent institutions, authorship networks/collaborations, and the journal with maximum citations. According to the sentiment analysis of abstracts, 97.79% of researchers are optimistic about building thermal management using PCMs. The research outcomes of this study will deliver significant contributions to the field and serve as a reference point for scholars and decision-makers as they confront the challenge of rising energy consumption and thermal comfort in buildings