Nova Publishers
My Account Nova Publishers Shopping Cart
HomeBooksSeriesJournalsReference CollectionseBooksInformationSalesImprintsFor Authors
  Top » Catalog » Books » Chemistry including Chemical Engineering » Hydroxides: Synthesis, Types and Applications Chapters » My Account  |  Cart Contents  |  Checkout   
Quick Find
Use keywords to find the product you are looking for.
Advanced Search
What's New? more
Emerging Materials for Environment Protection and Renewable Energy
Shopping Cart more
0 items
Shipping & Returns
Privacy Notice
Conditions of Use
Contact Us
Notifications more
NotificationsNotify me of updates to Utility of Sodium and Potassium Hydroxides for Preparing Superior Quality Activated Carbons (pp.73-104)
Tell A Friend
Tell someone you know about this product.
Utility of Sodium and Potassium Hydroxides for Preparing Superior Quality Activated Carbons (pp.73-104) $100.00
Authors:  (A. Linares-Solano, M.A. Lillo-Ródenas, J.P. Marco-Lozar, M. Kunowsky, A.J. Romero-Anaya, Dpto. Química Inorgánica, Universidad de Alicante, Alicante, Spain)
Alkaline hydroxides, especially sodium and potassium hydroxides, are multi-million-ton per annum commodities and strong chemical bases that have large scale applications. Some of them are related with their consequent ability to degrade most materials, depending on the temperature used. As an example, these chemicals are involved in the manufacture of pulp and paper, textiles, biodiesels, soaps and detergents, acid gases removal (e.g., SO2) and others, as well as in many organic synthesis processes. Sodium and potassium hydroxides are strong and corrosive bases, but they are also very stable chemicals that can melt without decomposition, NaOH at 318ºC, and KOH at 360ºC. Hence, they can react with most materials, even with relatively inert ones such as carbon materials. Thus, at temperatures higher than 360ºC these melted hydroxides easily react with most types of carbon-containing raw materials (coals, lignocellulosic materials, pitches, etc.), as well as with most pure carbon materials (carbon fibers, carbon nanofibers and carbon nanotubes). This reaction occurs via a solid-liquid redox reaction in which both hydroxides (NaOH or KOH) are converted to the following main products: hydrogen, alkaline metals and alkaline carbonates, as a result of the carbon precursor oxidation. By controlling this reaction, and after a suitable washing process, good quality activated carbons (ACs), a classical type of porous materials, can be prepared.
Such carbon activation by hydroxides, known since long time ago, continues to be under research due to the unique properties of the resulting activated carbons. They have promising high porosity developments and interesting pore size distributions. These two properties are important for new applications such as gas storage (e.g., natural gas or hydrogen), capture, storage and transport of carbon dioxide, electricity storage demands
(EDLC-supercapacitors-) or pollution control. Because these applications require new and superior quality activated carbons, there is no doubt that among the different existing activating processes, the one based on the chemical reaction between the carbon precursor and the alkaline hydroxide (NaOH or KOH) gives the best activation results.
The present chapter covers different aspects of the activation by hydroxides, including the characteristics of the resulting activated carbons and their performance in some applications. The following topics are discussed: i) variables of the preparation method, such as the nature of the hydroxide, the type of carbon precursor, the hydroxide/carbon precursor ratio, the mixing procedure of carbon precursor and hydroxide (impregnation of the precursor with a hydroxide solution or mixing both, hydroxide and carbon precursor, as solids), or the temperature and time of the reaction are discussed, analyzing their effect on the resulting porosity; ii) analysis of the main reactions occurring during the activation process, iii) comparative analysis of the porosity development obtained from different activation processes (e.g., CO2, steam, phosphoric acid and hydroxides activation); and iv) performance of the prepared activated carbon materials on a few applications, such as VOC removal, electricity and gas storages. 

Available Options:
Special Focus Titles
01.Heart Failure: What a Non-Heart Failure Specialist Needs to Know
02.Bottle-Feeding: Perceptions, Practices, and Health Outcomes
03.Between Success and Failure: Assessment of Aspirations and Risk (CD Included)
04.Understanding Left and Right: An Illustrated Guide to the Political Divide
05.Phytoremediation: Methods, Management and Assessment
06.“Waste-to-Profit” (W-t-P): Value added Products to Generate Wealth for a Sustainable Economy. Volume 1
07.The Impact and Implications of Crisis: A Comprehensive Approach Combining Elements of Health and Society
08.When "We" Are Stressed: A Dyadic Approach to Coping with Stressful Events
09.The Man Brand: Why Public Campaigns Hide Half of Intimate Partner Violence
10.The Life of Abraham Lincoln: Drawn from Original Sources and Containing Many Speeches, Letters and Telegrams Hitherto Unpublished. Volume One
11.Life of Charles Dickens
12.The Inventions and Discoveries of the World’s Most Famous Scientists

Nova Science Publishers
© Copyright 2004 - 2018

Utility of Sodium and Potassium Hydroxides for Preparing Superior Quality Activated Carbons (pp.73-104)