Performance Evaluation of Stone Matrix Asphalt (SMA) Mixes Using Different Types of Fibers as Additives. (Dept. c)

Dahab, Ahmed Essam; Mahdy, Hassan; Kandil, K.M.

doi:10.21608/bfemu.2021.178061

MEJ. Mansoura Engineering Journal

2021

DOI: 10.21608/bfemu.2021.178061

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Performance Evaluation of Stone Matrix Asphalt (SMA) Mixes Using Different Types of Fibers as Additives. (Dept. c)

Ahmed Essam Dahab

Hassan Mahdy

K.M. Kandil

Abstract:  I. INTRODUCTIONOWADAYS, the field of developing asphalt mixtures has been significantly improved. One of the main concerns is this field is improving

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“…instance, it is employed in paper and fiber bleaching, 3 water treatment, 4 disinfection, 5 in the food industry, 6 and is also a useful reactant in chemical synthesis. 7 H 2 O 2 is known as one of the 100 most essential chemicals globally, 8 substituting more harmful products.…”

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confidence: 99%

Enhanced electrochemical hydrogen peroxide production from surface state modified mesoporous tin oxide catalysts

BinSaeedan

Arunachalam

Al‐Mayouf

et al. 2022

Intl J of Energy Research

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Electrochemical hydrogen peroxide (H 2 O 2 ) production via the two-electron oxygen reduction reaction (ORR) has received much consideration as a substitute to the well-known industrial anthraquinone method. The present challenge in this area is developing appropriate cost-efficient materials with excellent electrocatalytic properties, durability, and product selectivity. This study examined electrocatalytic performance and selectivity toward H 2 O 2 production of mesoporous SnO 2 (meso-SnO 2 ) electrodes prepared using a tunable hydrothermal process. After evaluating the effects of different NaCl concentrations and annealing conditions in the hydrothermal method, an electrode was developed with a significantly improved H 2 O 2 production rate than the pristine material. Vacuum annealing led to materials with more surface defects. Meso-SnO 2 annealed under vacuum exhibits distinctive electrochemical properties of two well-separated 2e À O 2 reduction peaks to produce H 2 O 2 as the main product compared to meso-SnO 2 annealed in air. Most importantly, the introduction of surface oxygen vacancies into the meso-SnO 2 crystal structure was determined to be a prominent approach to enhance its ORR performance in producing H 2 O 2 , showing great selectivity of above 85% at an onset potential of $0.6 V RHE . The vacancy-rich meso-SnO 2 reveals enhanced electrocatalytic performance with ORR peak potential to be 0.6 V RHE, and the number of electron transfer numbers is 2.5, but greater durability in alkaline solutions. Thus, this work presents an innovative route for designing, synthesizing, and mechanistic examining enhanced SnO 2 -based catalytic materials for H 2 O 2 production.

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mentioning

confidence: 99%

Enhanced electrochemical hydrogen peroxide production from surface state modified mesoporous tin oxide catalysts

BinSaeedan

Arunachalam

Al‐Mayouf

et al. 2022

Intl J of Energy Research

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Performance Evaluation of Stone Matrix Asphalt (SMA) Mixes Using Different Types of Fibers as Additives. (Dept. c)

Abstract:  I. INTRODUCTIONOWADAYS, the field of developing asphalt mixtures has been significantly improved. One of the main concerns is this field is improving

Cited by 1 publication

References 8 publications

Enhanced electrochemical hydrogen peroxide production from surface state modified mesoporous tin oxide catalysts

Enhanced electrochemical hydrogen peroxide production from surface state modified mesoporous tin oxide catalysts

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