Selective catalytic reduction of nitric oxide over cerium-doped activated carbons

Athappan, Annaprabha; Sattler, Melanie L.; Sethupathi, Sumathi

doi:10.1016/j.jece.2015.08.028

Cited by 17 publications

(10 citation statements)

References 48 publications

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“…Kasaoka et al [133] demonstrated the reduction of NOx in flue gas to N 2 with NH 3 by a dry process at 350 • C and in a wet process where SO was absorbed at around 50 • C with wastewater byproduct. According to the following expressions, the NO removal efficiency can be achieved in the presence of oxygen [134].…”

Section: Nox Removal From Flue Gasmentioning

confidence: 99%

Monolith Metal-Oxide-Supported Catalysts: Sorbent for Environmental Application

et al. 2020

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The emission of untreated environmental harmful gases such as sulfur and nitrogen oxide (SOx and NOx) emissions is considered old fashioned, since industries are compelled by governments and legislations to meet the minimum threshold before emitting such substances into the atmosphere. Numerous research has been done and is ongoing to come up with both cost-effective equipment and regenerable catalysts that are adsorbent—or with enhanced sorption capacity—and with safer disposal methods. This work presents the general idea of a monolith/catalyst for environmental application and the technicality for improving the surface area for fast and efficient adsorption–desorption reactions. The chemical reactions, adsorption kinetics, and other properties, including deactivation, regeneration, and the disposal of a catalyst in view of environmental application, are extensively discussed.

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Section: Nox Removal From Flue Gasmentioning

confidence: 99%

Monolith Metal-Oxide-Supported Catalysts: Sorbent for Environmental Application

et al. 2020

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“…The prospective uses of biochar in the chemical industry include the elimination of sulfur dioxide and nitrogen oxides from exhaust gases (Rashidi et al, 2015(Rashidi et al, : 1507Athappan et al, 2015Athappan et al, :2502. It is estimated that the global production of all kinds of activated carbons is now roughly 1 mln t/y and still growing at a rate of some 5-7% a year (Borowiecki, 2008).…”

Section: Biochar As a Precursor In Activated Carbon Productionmentioning

confidence: 99%

Application of the Biochar-Based Technologies as the Way of Realization of the Sustainable Development Strategy

Gąsior¹,

Tic²

2017

EES

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The technologies of thermal processing of biomass, biowaste or sewage sludge into biochar as well as its potential use in the industry, power industry, housebuilding industry, agriculture or environmental protection attract growing attention. The multi-faceted, unique properties of biochar make it particularly attractive from the point of view of the achievement of sustainable development goals according to which the needs of the present generation should be satisfied in such a way so as not to harm the environment and in such a way that the future generations could use the same natural environment as we do. The EU policy focusing on the implementation of the principles of sustainable development emphasises the need to reduce the exploitation of natural resources, to use effective technologies processing waste and to develop new biodegradable and environmentally friendly products. Due to the wide range of biochar applications in many economy sectors, the ways of production, ensuring the reduction of waste generation, and its economic attractiveness, this product meets the expectations of the sustainable development policy. The aim of this paper is review the biochar-based technologies and the concepts of its application, and description of the disadvantages and advantages each of them..

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“…These materials are in great demand for many applications due to their large surface area, physiochemical stability, good conductivity and low cost [ 2 ]. In particular, these materials are widely used in supercapacitors [ 3 ], sensing technologies [ 4 ], as adsorbents for herbicides [ 5 ] and CO 2 [ 6 ], as well as a catalyst for reactions involving the reduction of oxygen (O 2 ) [ 7 ] and nitric oxide (NO) [ 8 ]. Carbonaceous materials with larger pore sizes have been found to be effective catalysts because they facilitate electrolyte permeability, efficient mass transport and diffusion of reactants and by-products [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

A Unique Synthesis of Macroporous N-Doped Carbon Composite Catalyst for Oxygen Reduction Reaction

et al. 2020

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Macroporous carbon materials (MCMs) are used extensively for many electrocatalytic applications, particularly as catalysts for oxygen reduction reactions (ORRs)—for example, in fuel cells. However, complex processes are currently required for synthesis of MCMs. We present a rapid and facile synthetic approach to produce tailored MCMs efficiently via pyrolysis of sulfonated aniline oligomers (SAOs). Thermal decomposition of SAO releases SO2 gas which acts as a blowing agent to form the macroporous structures. This process was used to synthesise three specifically tailored nitrogen (N)-doped MCM catalysts: N-SAO, N-SAO (phenol formaldehyde) (PF) and N-SAO-reduced graphene oxide (rGO). Analysis using Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and X-ray diffraction (XRD) analysis confirmed the formation of macropores (100–350 µm). Investigation of ORR efficacy showed that N-SAOPF performed with the highest onset potential of 0.98 V (vs. RHE) and N-SAOrGO showed the highest limiting current density of 7.89 mAcm−2. The macroporous structure and ORR efficacy of the MCM catalysts synthesised using this novel process suggest that this method can be used to streamline MCM production while enabling the formation of composite materials that can be tailored for greater efficiency in many applications.

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Selective catalytic reduction of nitric oxide over cerium-doped activated carbons

Cited by 17 publications

References 48 publications

Monolith Metal-Oxide-Supported Catalysts: Sorbent for Environmental Application

Monolith Metal-Oxide-Supported Catalysts: Sorbent for Environmental Application

Application of the Biochar-Based Technologies as the Way of Realization of the Sustainable Development Strategy

A Unique Synthesis of Macroporous N-Doped Carbon Composite Catalyst for Oxygen Reduction Reaction

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