Results 111 to 120 of about 5,505,992 (382)

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source

Chemical analysis of aerosol in the Venusian cloud layer by reaction gas chromatography on board the Vega landers [PDF]

The experiment on sulfuric acid aerosol determination in the Venusian cloud layer on board the Vega landers is described. An average content of sulfuric acid of approximately 1 mg/cu m was found for the samples taken from the atmosphere at heights from ...
Bondarev, V. B., Dolnikov, G. G., Drozdov, Y. V., Dyachkov, A. V., Gelman, B. G., Khokhlov, V. N., Melnikov, V. V., Mukhin, L. M., Nenarokov, D. F., Rotin, V. A.   +9 more
core   +1 more source

The importance of pre-treatment of spent hydrotreating catalysts on metals recovery

Química Nova, 2011
This work describes a three-step pre-treatment route for processing spent commercial NiMo/Al2O3 catalysts. Extraction of soluble coke with n-hexane and/or leaching of foulant elements with oxalic acid were performed before burning insoluble coke under ...
Alexandre Luiz de Souza Pereira, Cristiano Nunes da Silva, Júlio Carlos Afonso, José Luiz Mantovano   +3 more
doaj   +1 more source

Built‐In Electric Field in 2D/2D LDH/Antimonene Heterostructure to Induce Stable β‐NiOOH at Ultralow Potential for Cost‐Effective Water Electrolysis

Advanced Functional Materials, EarlyView.
In this paper, a built‐in electric field (BEF) strategy is proposed to fabricate NiFe‐LDH/antimonene heterostructure as bifunctional electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). The formed BEF generates a local potential that reduces the potential for the formation of β‐NiOOH, thereby enabling ultra‐low ...
Jingkun Wang, Xiaoning Li, Haojie Liang, Chenxi Zhang, Huayun Du, Ying Sun, Hui Li, Hongge Pan, Yuying Hao, Min Zhao, Tianbao Li, Tianyi Ma   +11 more
wiley   +1 more source

Intumescent composition, foamed product prepared therewith and process for making same [PDF]

, 1974
An intumescent composition and the foamed product prepared by heating the composition are provided. The composition comprises the reaction product of para-benzoquinone dioxime and a concentrated mineral acid such as sulfuric acid, phosphoric acid, and ...
Parker, J. A., Riccitiello, S. R.
core   +1 more source

Scandium extraction from silicates by hydrometallurgical process at normal pressure and temperature

Journal of Materials Research and Technology, 2020
Silicate is an important rock-forming mineral. In this work, a method called “sulfuric acid curing” was proposed, aiming to extract rare earth element scandium from silicates.
Yanjun Zhang, Hongbo Zhao, Menglin Sun, Yisheng Zhang, Xiaoyu Meng, Luyan Zhang, Xin Lv, Sarangerel Davaasambuu, Guanzhou Qiu   +8 more
doaj  

Nanofillers Reinforcing Biopolymer Composites for Sustainable Food Packaging Applications: A State‐of‐the‐Art Review

Advanced Functional Materials, EarlyView.
Biopolymers are sustainable, biodegradable alternatives to petroleum‐based plastics for food packaging. Its adoption is often limited by poor mechanical strength, barrier properties, and improved thermal stability through the incorporation of nanofillers.
Himakshi Baishya, Joydeep Dutta, Santosh Kumar   +2 more
wiley   +1 more source

Laboratory evaluation of microwave absorption properties under simulated conditions for planetary atmospheres [PDF]

The microwave absorbing properties of gaseous sulfuric acid (H2SO4) under Venus atmospheric conditions are investigated. The results are applied to measurements from Mariner 5, Mariner 10, and Pioneer/Venus Radio Occultation experiments, to determine ...
Steffes, P. G.
core   +1 more source

Dissolution of chromium in sulfuric acid

Journal of the Serbian Chemical Society, 2002
By combining electrochemical corrosion rate measurements and spectrophotometric analysis of the electrolyte it was shown that at room temperature chromium dissolves in deaerated 0.1M Na2SO4 + H2SO4 (pH1) solution as Cr(II) and Cr(III) ions in he ratio Cr(II):Cr(III)?7:1. This process was stable over 4h without any detectable change. The total corrosion
M Dragutin Drazic, P Jovan Popic
openaire   +4 more sources

Transforming Cellulose Into Functional Three‐Dimensional Structures

Advanced Functional Materials, EarlyView.
Cellulose is promising for replacing synthetic polymers due to its excellent mechanical properties and low cost. This review highlights the recent advancements in transforming cellulose into functional 3D structures, including liquid gels and porous materials.
Xia Sun, Hao Sun, Penghui Zhu, Yonggang Wu, Anna Palmer, Feng Jiang   +5 more
wiley   +1 more source