Latest Exploration on Natural Corrosion Inhibitors for Industrial Important Metals in Hostile Fluid Environments: A Comprehensive Overview

2019 ◽  
Vol 5 (3) ◽  
Author(s):  
Narasimha Raghavendra
Keyword(s):  
Corrosion Inhibitors ◽  
Comprehensive Overview ◽  
Natural Corrosion

Corrosion Inhibition of Aluminum in 0.1M HCL by Nephelium lappaceum (Rambutan) Peel Extract

2014 ◽  
Vol 661 ◽  
pp. 14-20 ◽  
Author(s):  
Mohd Norzila ◽  
Mat Irahim Nur Akidah Honey ◽  
Jaafar Nursyafinaz
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibitors ◽  
Physical Adsorption ◽  
Human Life ◽  
Aluminum Surface ◽  
Inhibition Mechanism ◽  
Nephelium Lappaceum ◽  
Sem Study ◽  
Natural Corrosion ◽  
Peel Extract

Corrosion control of metals is about technical, economic, environmental, and aesthetic importance. Synthetic corrosion inhibitors are toxic to environment and human life. Thus, the searches for natural corrosion inhibitors are essential as they are biodegradable and non toxic. The purpose of this study is to investigate the ability ofNephelium lappaceumpeel extract as a corrosion inhibitor of aluminum in 0.1M HCl solutions. Obtained data from gravimetric and thermometric analysis has shown the value of inhibition efficiency (% IE) is proportional to added inhibitor concentration and inversely proportional to the temperature. Occurred inhibition mechanism was in the form of inhibitor adsorption process on aluminum surface that allegedly preceded by physical adsorption. The SEM study also confirmed there were adsorptions of extracted inhibitor molecules onto aluminum surface. Therefore, from the observational results obtained, it can be concluded thatNephelium lappaceumpeel extract was an attractive candidate for the natural corrosion inhibitor.

scholarly journals Environmentally Friendly Anticorrosive Polymeric Coatings

2021 ◽  
Vol 11 (8) ◽  
pp. 3446
Author(s):  
Mirko Faccini ◽  
Lorenzo Bautista ◽  
Laura Soldi ◽  
Ana M. Escobar ◽  
Manuela Altavilla ◽  
...  
Keyword(s):  
Corrosion Inhibitors ◽  
Environmentally Friendly ◽  
Waterborne Polyurethane ◽  
Organic Coatings ◽  
Polymeric Coatings ◽  
Effective Solution ◽  
Consumer Awareness ◽  
Comprehensive Overview ◽  
Volatile Organic ◽  
Recent Developments

This paper provides a synthetic and comprehensive overview on environmentally friendly anticorrosive polymeric coatings. Firstly, the economic and environmental impact of corrosion is presented to highlight the need of anticorrosive polymeric coatings as a flexible and effective solution to protect a metal. Secondly, the implementation of regulations together with the consumer awareness for environmental considerations and protection of health are the driving force for a progressive but significant change in the sector. Therefore, within the protective organic coatings market, this article provides a review of the most recent developments in environmentally friendly solutions, including bio-based and water-borne epoxy, hyperbranched polyester for low- volatile organic compounds (VOC) coatings, waterborne polyurethane and non-isocyanate polyurethanes (NIPUs), and graphene or bio-based fillers for acrylics. Moreover, this paper outlines new trends such as smart additives, bio-based corrosion inhibitors, and functional antibiocorrosive coatings as superhydrophobics. Finally, industrially relevant applications of environmentally friendly anticorrosive polymeric coatings including solutions for marine and off-shore industries are summarized.

Natural Corrosion Inhibitors

2019 ◽  
Vol 3 (2) ◽  
pp. 1-96 ◽  
Author(s):  
Shima Ghanavati Nasab ◽  
Mehdi Javaheran Yazd ◽  
Abolfazl Semnani ◽  
Homa Kahkesh ◽  
Navid Rabiee ◽  
...  
Keyword(s):  
Corrosion Inhibitors ◽  
Natural Corrosion

scholarly journals Study the efficiency of tobacco extracts as corrosion inhibitor for steel pipes buried in organic and clay soil

2019 ◽  
Vol 26 (4) ◽  
pp. 144-149
Author(s):  
Dima Mansour ◽  
Mayssa Shash ◽  
Ghayas Abbass
Keyword(s):  
Corrosion Inhibitors ◽  
Clay Soil ◽  
Pipe Steel ◽  
Organic Soil ◽  
Inhibitory Effect ◽  
Potassium Chromate ◽  
Steel Pipes ◽  
Tobacco Extract ◽  
Natural Corrosion ◽  
Better Than

This research includes an experimental study of tobacco extract to be used as natural corrosion inhibitors by applying it on steel pipe (Steel 355) buried in soil, by selecting a suitable extract. Two types of soil were studied (organic soil and clay soil). The steel pipes treated with tobacco extract were buried for a period of (five months), and the effectiveness of tobacco extract on pipes’ corrosion is studied.  The results showed the effectiveness of the tobacco extract as an inhibitor of corrosion، as well as it is better than its standard counterparts in both studied soils (organic and clay). The inhibitory activity of both (tobacco extract and potassium chromate) was recorded in organic soil for the first month as (71.42and 58.9%) respectively. The inhibitory effectiveness was found in clay soil of both (tobacco extract، potassium chromate) for the first month as (67.65 and 54.05%)، respectively. The results of this study also showed a better inhibitory effect of the extract of tobacco in organic soil than in the clay soil during the study period (five months)، where the inhibitory effect of the tobacco extract was for the fifth month in both organic soil and clay soil (38.55 and 34.99%) respectively.

Electron-deficient boron-based catalysts for C–H bond functionalisation

2021 ◽  
Author(s):  
Yuanhong Ma ◽  
Shao-Jie Lou ◽  
Zhaomin Hou
Keyword(s):  
Review Article ◽  
Current Status ◽  
Comprehensive Overview

This review article provides a comprehensive overview to recognise the current status of electron-deficient boron-based catalysis in C–H functionalisations.

Inequalities and Impact of Socioeconomic-Cultural Factors in Suicide Rates Across Italy

Crisis ◽  
2011 ◽  
Vol 32 (4) ◽  
pp. 178-185 ◽  
Author(s):  
Maurizio Pompili ◽  
Marco Innamorati ◽  
Monica Vichi ◽  
Maria Masocco ◽  
Nicola Vanacore ◽  
...  
Keyword(s):  
Suicide Rate ◽  
Age Groups ◽  
Premature Death ◽  
Mortality Rates ◽  
Mortality Data ◽  
Italian Population ◽  
Comprehensive Overview ◽  
Suicide Rates ◽  
Younger Age ◽  
Age And Sex

Background: Suicide is a major cause of premature death in Italy and occurs at different rates in the various regions. Aims: The aim of the present study was to provide a comprehensive overview of suicide in the Italian population aged 15 years and older for the years 1980–2006. Methods: Mortality data were extracted from the Italian Mortality Database. Results: Mortality rates for suicide in Italy reached a peak in 1985 and declined thereafter. The different patterns observed by age and sex indicated that the decrease in the suicide rate in Italy was initially the result of declining rates in those aged 45+ while, from 1997 on, the decrease was attributable principally to a reduction in suicide rates among the younger age groups. It was found that socioeconomic factors underlined major differences in the suicide rate across regions. Conclusions: The present study confirmed that suicide is a multifaceted phenomenon that may be determined by an array of factors. Suicide prevention should, therefore, be targeted to identifiable high-risk sociocultural groups in each country.

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