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Svetlana Islamova, Anastasia Tartygasheva, Julia Karaeva, Vladimir Panchenko and Yuriy Litti
The combustion of sunflower husk pellets was investigated by kinetic analysis supplemented by the Kriging method. The nonisothermal thermogravimetric experiments in air were carried out at the temperatures from 20 to 700 °C and heating rates of 5, 10, an...
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Hassan Ghanbarabadi, Behnam Khoshandam
Pág. 388 - 396
In this paper, the reduction duration of (CuO)x-(NiO)(1-x) and (CuO)x-(Co3O4)(1-x) binary mixtures was studied using thermogravimetric method. The reduction reaction was performed using copper, nickel and cobalt oxides as metal precursors and methane gas...
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Aliya N. Mukhamed'yarova, Oksana V. Nesterova, Kirill S. Boretsky, Juliya D. Skibina, Avgustina V. Boretskaya, Svetlana R. Egorova and Alexander A. Lamberov
Amorphous aluminum compounds are formed during the synthesis of the γ-Al2O3 catalyst precursor. Amorphous compounds influence on the alumina catalyst variously due to different physicochemical properties, which depend on the method of their prepara...
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Suhyun Ahn, Jeong Mog Seo and Heejin Lee
Marine lubricating oil (LO) is deteriorated by contaminants?especially marine gas oil (MGO), which is invariably mixed during its usage?that can damage engine performance. This study investigates a method for determining the content of MGO in lubricating...
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Jharna Gupta, Madhu Agarwal, Ajay Kumar Dalai
Pág. 288 - 294
In this study, a novel heterogeneous catalyst was synthesized from drinking water treatment sludge obtained during defluoridation in biodiesel production by transesterification. More specifically, the sludge was converted into an effective catalyst by ca...
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Ángela Obando-Mora, Claudia A. Acevedo-Gutiérrez, Jesica G Pérez-Cinencio, Francis S. Sánchez-Garzón and Emilio Bucio
This work focuses on the effects of gamma-ray irradiation conditions on the stimuli-responsiveness of silicone rubber (SR) substrates grafted with N-vinylcaprolactam (NVCL) and N-vinylimidazole (NVIM), modified by the simultaneously polymerization and gr...
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Rita D. Bonetto,Patricia E. Zalba,Maria S. Conconi,Marcelo Manassero
Pág. 103 - 115
The Rietveld method was successfully used for the quantitative phase analysis of zeolitized rocks containing montmorillonite, a phase in which the atomic positions cannot be determined exactly. The freely distributed program FULLPROF was used in its prof...
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Wenhe Wang, Changsen Zhang, Guanghui Chen and Ruiqin Zhang
Hydrodeoxygenation (HDO) of bio-oil is a method of bio-oil upgrading. In this paper, x%CeO2?Ni?Cu/HZSM-5 (x = 5, 15, and 20) was synthesized as an HDO catalyst by the co-impregnation method. The HDO performances of x%CeO2?Ni?Cu/HZSM-5 (x = 5, 15, and 20)...
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Youliang Cheng, Qingling Zhang, Changqing Fang, Jing Chen, Jian Su, Kaiyan Xu, Liangliang Ai and Donghong Liu
The dispersity of graphene (GE) in the matrix has an important influence on the thermal, mechanical, and electrical properties of its derived composites. In this paper, surface modification with a silane coupling agent and a double injection method were ...
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Edmund C Okoroigwe, S O Enibe, S O Onyegegbu
The oxidation characteristics and devolatilisation kinetics studies of palm kernel shell (Elaeis guineensis), African bush mango wood and shell (Irvingia wombolu), and African border tree wood (Newbouldia laevis), were carried out by the thermogravimetri...
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Baojun Cheng, Xiaowei Gu, Haoyue Hu, Yaning Kong and Pengyu Huang
There are some limitations in the application of tuff powder as a supplementary cementitious material (SCM). Exploring its feasibility in new fields will consume a large amount of silica-alumina mine solid wastes. This study has investigated the mechanic...
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Emin Mercan
This study aimed to determine the effects of the ozone treatment of film-forming solutions (FFSs) containing whey protein concentrate (WPC) and gelatine on biopolymer films? physical, mechanical, and thermal properties. Film samples were produced from a ...
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Lala Gahramanli, Mustafa Muradov, Goncha Eyvazova, Mahammad Baghir Baghirov, Sevinj Mammadyarova, Gunel Aliyeva, Elman Hajiyev, Faig Mammadov and Stefano Bellucci
The present research involves producing graphene oxide (GO) using the Hummers method, generating a composite using GO and PVA, and analyzing these composites? structural and optical characteristics. PVA and GO were used in varied percentages to deal with...
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Yu Zhou, Kaimin Chen, Li Liu, Shaoguo Wen and Taijiang Gui
Phthalocyanine pigments have many problems in waterborne coating applications because of their low polarity, poor dispersion in water, and easy agglomeration properties. In order to solve these problems, the phthalocyanine pigments were encapsulated with...
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Guangteng Bai, Juyang Fu, Qian Zhou and Xiangliang Pan
Tire wear particles (TWPs), as a type of thermosetting microplastic (MP), accumulate in aquatic environments due to their wide application in road traffic globally. The increase in temperature because of friction heat may cause aging of tire materials, i...
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Rafal Krakowiak, Robert Frankowski, Kinga Mylkie, Dariusz T. Mlynarczyk, Marta Ziegler-Borowska, Agnieszka Zgola-Grzeskowiak and Tomasz Goslinski
In this work, a composite material based on titanium(IV) oxide and iron(II,III) oxide was prepared using mechanothermal method. The obtained composite system was thoroughly characterized using techniques such as scanning electron microscopy, X-ray powder...
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Shuo Li, Changming Wang, Fuyan Guo, Xiaoyang Liu, Songling Han and Ruiyuan Gao
Secondary compression studies can provide insights for evaluating the engineering potential and environmental impact of soil. The objective of this research was to investigate the effect of bound water content on the secondary compression of marine silty...
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Pugar Arga Cristina Wulandari, Zulfa Nailul Ilmi, Saikhu Akhmad Husen, Dwi Winarni, Mochammad Amin Alamsjah, Khalijah Awang, Marco Vastano, Alessandro Pellis, Duncan MacQuarrie and Pratiwi Pudjiastuti
A diabetic foot ulcer is an open wound that can become sore and frequently occurs in diabetic patients. Alginate has the ability to form a hydrophilic gel when in contact with a wound surface in diabetic patients. Xanthones are the main compounds of mang...
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Vadym Kovalenko,Valerii Kotok,Alexey Sykchin,Ihor Kovalenko,Oksana Berzenina,Viktoriia Stoliarenko,Iryna Plaksiienko,Pavlo Pysarenko,Marina Samojlik
Pág. 15 - 23
Binary Ni-Co compounds, namely oxyhydroxides and cobaltates of nickel, are promising active compounds for supercapacitors. The characteristics of binary Ni-Co oxyhydroxides synthesized using the method of high-temperature two-stage synthesis with hot and...
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Rodrigue Djeda, Gilles Mailhot and Vanessa Prevot
Layered Double Hydroxide (LDH)/TiO2 nanocomposites with photocatalytic properties were synthesized by both impregnation and the direct coprecipitation of LDH matrices using a colloidal suspension of TiO2 nanoparticles. While the two methods led to an eff...
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