Deriving graphene nano sheets from Kinnow Peel Waste for high performance super capacitor, involves collecting and washing kinnow peel waste with double distilled water to remove dust and other impurities, and drying washed minnow peel waste in sunlight
	MELKANI D; ARYA T; BHATT D; TEWARI C; RANA A; TATRARI G; BOHRA B S; PATHAK M; SAHOO N G
	2023-07-28
专利权人	UNIV KUMAUN (UYKU-Non-standard)
申请日期	2023-07-28
专利号	IN202311051096-A
成果简介	NOVELTY - Deriving graphene nano sheets (GNs) from Kinnow Peel Waste (KPW) for high performance super capacitor involves (i) collecting and washing the KPW with double distilled water to remove dust and other impurities; (ii) drying the washed KPW in sunlight for 1-3 days and then drying the sun dried KPW for 3-5 hours (h) at 80-100℃, where the dried KPW is grounded into a fine powder by a grinding apparatus; (iii) pyrolyzing the first mixture at 400-500℃ in an inert atmosphere of nitrogen (N2) gas for 1 h by a tube furnace to obtain a black amorphous solid; (iv) crushing the obtained amorphous solid into a black fine powder by a mortar pestle; (v) mixing the obtained black fine powder and the potassium chloride (KCl) thoroughly by a mixer in a certain ratio of 1:2 to obtain a second mixture, where the KCl acts as an activation agent in the second mixture. USE - Method for deriving graphene nano sheets from Kinnow Peel Waste for high performance super capacitor. ADVANTAGE - The method employs a simple procedure, cost-effective, and uses a non-toxic and non-hazardous chemical for preparing the graphene nanosheets. DETAILED DESCRIPTION - Deriving graphene nano sheets (GNs) from Kinnow Peel Waste (KPW) for high performance super capacitor involves (i) collecting and washing the KPW with double distilled water to remove dust and other impurities; (ii) drying the washed KPW in sunlight for 1-3 days and then drying the sun dried KPW for 3-5 hours (h) at 80-100℃, where the dried KPW is grounded into a fine powder by a grinding apparatus; (iii) pyrolyzing the first mixture at 400-500℃ in an inert atmosphere of N2gas for 1 h by a tube furnace to obtain a black amorphous solid; (iv) crushing the obtained amorphous solid into a black fine powder by a mortar pestle; (v) mixing the obtained black fine powder and the KCl thoroughly by a mixer in a certain ratio of 1:2 to obtain a second mixture, where the KCl acts as an activation agent in the second mixture; (vi) pyrolyzing the second mixture in the tube furnace instrument at 900-1000℃ in the inert atmosphere of N2(10 mL/min) to obtain a black charred residue; (vii) washing the obtained black charred residue with the double distilled water and washing with isopropyl alcohol to remove unwanted organic impurity; (viii) ultrasonicating the washed charred residue in an ultrasonic homogenizer with 30 % power at pulse rates for 1 h; and (ix) drying and filtering the ultrasonicated charred residue to get layers of the graphene nano sheet GNs. An INDEPENDENT CLAIM is included for a process for fabrication of supercapactitor device using graphene nanosheets which involves dissolving and mixing 85-95 wt.% graphene nano sheets (GNs) with 8-12 wt.% polyvinylidene fluoride or polyvinylidene difluoride (PVDF) in water by using a stirrer to prepare a sticky paste of the graphene nanosheet, coating the prepared paste over each of the formed GNs separately, and drying each of the coated GNs separately in the oven for 24 h at 80-100℃, and placing the coated graphite sheets facing each other with insertion of a filter paper to form the supercapacitor device.
IPC 分类号	B29L-007/00 ; C02F-001/28 ; H01G-011/06 ; H01G-011/34 ; H01L-021/67
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/21073
专题	中国科学院新疆生态与地理研究所
作者单位	UNIV KUMAUN (UYKU-Non-standard)
推荐引用方式 GB/T 7714	MELKANI D,ARYA T,BHATT D,et al. Deriving graphene nano sheets from Kinnow Peel Waste for high performance super capacitor, involves collecting and washing kinnow peel waste with double distilled water to remove dust and other impurities, and drying washed minnow peel waste in sunlight. IN202311051096-A[P]. 2023.

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