Method for synthesizing zinc oxide nanoparticles for preparing zinc oxide-doped multi-walled carbon nanotube nanoparticle paste, involves dissolving zinc nitrate and hexamethyl tetramine in distilled water, stirring obtained precursor and surfactant solutions, washing, and thermally-treating
	SAHA P; VELNATI S; CHAKRABORTY S; VAISHNAVI G S; BHARATH V; SUBRAMANIAN K R V
	2024-08-08
专利权人	RAMAIAH INST TECHNOLOGY M S (RAMA-Non-standard) ; IITI DRISHTI CPS FOUND (IITI-Non-standard)
申请日期	2024-08-08
专利号	IN202421060030-A
成果简介	NOVELTY - Method for synthesizing zinc oxide nanoparticles involves dissolving 5 mM of zinc nitrate and 5 mM of hexamethyl tetramine (HMTA) in 100 ml of distilled water to form a precursor solution and a surfactant solution, subjecting the precursor solution and the surfactant solution to magnetic stirring for 60 minutes, gradually adding 0.5 M ammonium hydroxide to the stirred solution via a titration process, filtering the resulting mixture using Whatman(RTM: cellulose-based filter paper) to separate the zinc oxide nanoparticles from the reaction mixture, washing the filtered zinc oxide nanoparticles with water to remove impurities, subjecting the washed zinc oxide nanoparticles to thermal treatment in a hot air oven at 90°C for 180 minutes, and obtaining zinc oxide nanoparticles, where zinc oxide nanoparticles are uniform, nanosized and well-connected for voltage sensor application. USE - Method for synthesizing zinc oxide nanoparticles used for preparing zinc oxide-doped multi-walled carbon nanotube nanoparticle paste for screen printing (all claimed) for nanotechnology, electronics and voltage sensor applications. ADVANTAGE - The screen-printing method entails applying the zinc oxide paste to a screen, spreading, printing onto a glass substrate, and subjecting to dry heating to enhance adhesion, and ensures controlled synthesis, proper ratios and consistent viscosity for effective application in various nanotechnology and printing processes. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) method for preparing zinc oxide-doped multi-walled carbon nanotube nanoparticle mixture for screen printing, which involves: (a) mixing 20 g of zinc oxide nanoparticles with 340 drops of ethylene glycol (with preset amount of multiwalled carbon nanotubes) to form a paste; and (b) applying obtained mixture onto glass substrates using a screen-printing to apply the zinc oxide paste onto the glass substrates with one or more strokes, where the paste is spread on the screen prior to screen printing and an empty stroke made to spread the paste on the screen, and the paste is further pressed onto screen circles by a scalpel for the paste nanoparticles to penetrate the screen circle pores, and final screen printing is done, and the method provides enhanced quality of screen printing and well printed circles of the paste on glass; (2) method for synthesizing copper oxide nanofluid, which involves: (a) preparing a sodium borohydride solution by dissolving 3.02 g of sodium borohydrate in 50 ml of water; (b) separately dissolving 7.4907 g of copper sulfate (CuSO4) in 100 ml of water to form copper sulfate solution; (c) conducting a titration process by combining the sodium borohydride solution and the copper sulfate solution under controlled conditions involving magnetic stirring at 400 revolution per minute (rpm) and room temperature; (d) washing the resulting copper oxide nanoparticles using a mixture of ethanol and distilled water in a ratio of 1:1; (e) filtering the washed copper oxide nanoparticles using Whatman(RTM: cellulose-based filter paper); (f) heating the filtered copper oxide nanoparticles in a hot air oven for a duration of 5 hours; (g) aging the heated copper oxide nanoparticles for 24 hours; and (h) obtaining a yield of 1.57 g of copper oxide nanoparticles for nanofluid synthesis; and (3) method for screen printing using zinc oxide-doped multi-walled carbon nanotube paste, which involves: (a) applying 40:1 zinc oxide paste to a screen; (b) spreading the paste across the screen to ensure an even distribution; (c) printing a circular pattern of the zinc oxide paste onto a glass substrate using a single stroke; (d) lifting the screen carefully to leave the printed pattern on the glass substrate; and (e) subjecting the freshly printed zinc oxide paste to dry heating in a hot air oven to remove residual solvents and enhance adhesion.
IPC 分类号	B82Y-030/00 ; C01G-009/02 ; C03C-003/066 ; C03C-008/04 ; H05K-003/12
国家	印度
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/15509
专题	中国科学院新疆生态与地理研究所
作者单位	1.RAMAIAH INST TECHNOLOGY M S (RAMA-Non-standard) 2.IITI DRISHTI CPS FOUND (IITI-Non-standard)
推荐引用方式 GB/T 7714	SAHA P,VELNATI S,CHAKRABORTY S,et al. Method for synthesizing zinc oxide nanoparticles for preparing zinc oxide-doped multi-walled carbon nanotube nanoparticle paste, involves dissolving zinc nitrate and hexamethyl tetramine in distilled water, stirring obtained precursor and surfactant solutions, washing, and thermally-treating. IN202421060030-A[P]. 2024.

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