Article
Energy & Fuels
V. Vishal Malolan, C. Trilokesh, Kiran Babu Uppuluri, A. Arumugam
Summary: This study reported the extraction and characterization of cellulose from Calophyllum inophyllum de-oiled cake using the ionic liquid, 1-butyl-3-methylimidazolium chloride [BMIM] Cl. The yield of the cellulose from the extraction was approximately 23.81 +/- 1.72% w/w of the de-oiled cake, and SEM imaging revealed the swollen nature of cellulose fibers. FTIR and XRD analysis confirmed the presence and purity of cellulose, and the thermal degradation pattern of extracted cellulose was consistent with previous literature. Overall, this study demonstrated that a high-quality cellulose fraction could be obtained using the ionic liquid [BMIM] Cl.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Physical
B. Santhoshkumar, D. L. R. Khanna, M. B. Choudhary, P. Lokeswara Rao, K. Ramanathan, A. K. Bera, S. M. Yusuf, Bholanath Pahari
Summary: Enhanced Na-ion conductivity was achieved in Na3+xScxZr2-xSi2PO12 prepared through solid-state reaction with optimized sintering temperature, showing a significantly higher total ionic conductivity at 25 degrees C. The XRD analysis revealed a phase mixture of monoclinic and rhombohedral NASICON phases, while SEM observation showed microcrack-free grain boundaries.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Forestry
Xujie Wang, Cuimei Luo, Jun Mu, Chusheng Qi
Summary: This study investigates the effect of exogenous acid on the physical and mechanical properties of wood by impregnating poplar wood with aluminum chloride (AlCl3). The results show that AlCl3 impregnation pretreatment significantly improves the equilibrium moisture content and dimensional stability of heat-treated wood at low temperatures.
Article
Forestry
Peng Liu, Chao Jin, Kai Zhang, Yu Xue, Boxu Gao, Yingshuai Jia, Yueer Yan, Hongbin Zhang, Sinong Wang, Yi Tang
Summary: Cellulose-based handmade paper plays a significant role in recording historical data and promoting human civilization, but its deterioration remains a challenge. Microstructure analysis of handmade paper is essential for understanding its aging mechanism and storage life-span.
Article
Polymer Science
Bengang Zhang, Mathieu Petrissans, Anelie Petrissans, Antonio Pizzi, Baptiste Colin
Summary: The hydrophobicity of heat-treated beech and fir wood at different temperatures (120℃ to 300℃) was defined using the Whilhelmy method, wood thermal properties (TG/DTG), infrared spectroscopy, etc. The hydrophobic character obtained by the heat treatment remains constant even when exposed to wet conditions for 1 week. Heat-induced wood hydrophobation is mainly caused by furanic moieties produced from heat-induced degradation of hemicelluloses, which is triggered by the acid environment generated by the hydrolysis of hemicellulose acetyl groups.
Article
Nanoscience & Nanotechnology
Shammi A. Ferdousi, Luke A. O'Dell, Ju Sun, Yvonne Hora, Maria Forsyth, Patrick C. Howlett
Summary: We investigated the sodium electrochemistry and the evolution and chemistry of the solid-electrolyte interphase (SEI) during cycling of Na metal electrodes in two ionic liquid (IL) electrolytes. We found that the IL based on the phosphonium cation demonstrated superior performance and stability compared to the pyrrolidinium-based counterpart, even after the addition of water. This research breakthrough shows promise for the development of high-capacity Na metal anodes and future higher-temperature Na-metal-based batteries.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Pablo Aguilar-Rodriguez, Adrian Mejia-Gonzalez, Sandra Zetina, Abraham Colin-Molina, Braulio Rodriguez-Molina, Nuria Esturau-Escofet
Summary: This study investigated the aging process of acrylic-based commercial paints using various analytical techniques, revealing a gradual loss of organic surfactant in all paints and unexpected behavior in two of the paints related to the properties of the acrylic binder. The results suggested that the aging of acrylic binders may vary among paints and be influenced by the interaction of different components in the formulation. Understanding these processes can provide more tools for the preservation of modern art paintings and cultural heritage.
MICROCHEMICAL JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Emmanuel Isaac Akpan, Bernd Wetzel, Klaus Friedrich
Summary: The hierarchical structures of woods can be modified to provide structural, functional, and multi-functional materials, but current methods often generate harmful waste products. Sustainable alternatives that are environmentally friendly, energy efficient, and cost effective are proposed for future material processing.
Article
Materials Science, Paper & Wood
Sergey G. Kostryukov, Pavel S. Petrov, Veronica S. Tezikova, Yuliya Yu Masterova, Tulfikar J. Idris, Nikita S. Kostryukov
Summary: CP MAS C-13 NMR spectroscopy was used to analyze the differences in wood composition among various tree species in central Russia, revealing the total ratio of cellulose and hemicelluloses to lignin. This technique confirmed the presence of cellulose in amorphous and crystalline forms, lignin through aromatic carbon atoms, and hemicelluloses via signals from methyl groups of acetylxylose and L-rhamnose.
CELLULOSE CHEMISTRY AND TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
S. G. Kostryukov, P. S. Petrov, Yu. Yu. Masterova, T. D. Idris, S. S. Hamdamov, I. A. Yunusov, N. S. Kostryukov
Summary: In this study, the differences in wood composition were analyzed using solid-state C-13 NMR spectroscopy for several tree species in central Russia. The results showed variations in the content of cellulose, lignin, and hemicellulose among different tree species, with coniferous species having the highest lignin content and deciduous species having the lowest.
RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY
(2022)
Article
Forestry
Mahesh Kumar, Mahender Kumar, Kapil Gulati, Rajeev Bagoria, Sanjiv Arora
Summary: This study investigates the impregnation of CTMAB and ADHOP in wood and evaluates the thermal behavior and flame retardant properties of the modified wood samples. The results demonstrate the synergetic effect of ADHOP on the flame retardant properties imparted by CTMAB on the wood samples.
JOURNAL OF THE INDIAN ACADEMY OF WOOD SCIENCE
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
M. Senthilkumaran, C. Saravanan, P. Puthiaraj, P. Muthu Mareeswaran
Summary: Nitrogen-rich polyaminals were synthesized with silica support for CO2 capture applications. The one-pot polycondensation reaction was used to achieve the target material without a catalyst. The structure and surface morphology of the polymers were characterized using various techniques including FT-IR, C-13 CP-MAS NMR, and SEM analysis.
MATERIALS TODAY-PROCEEDINGS
(2021)
Article
Pharmacology & Pharmacy
Rabab Fatima, Mousmee Sharma, Parteek Prasher
Summary: This study utilized helical V-amylose for the controlled release of flufenamic acid, achieving enzyme-responsive, targeted drug delivery in the intestine. Analysis confirmed the entrapment of the drug in the helical structure of V-amylose, and the results demonstrated sustained and controlled release properties in simulated gastric and intestinal environments.
THERAPEUTIC DELIVERY
(2021)