Journal ArticleDOI
Hydrogen production from ethanol reforming: Catalysts and reaction mechanism
TLDR
A detailed analysis based on the spectroscopic technique revealed that reaction pathways proceeded along a mono-functional or bi-functional mechanism according to the types of active metal and support as mentioned in this paper.Abstract:
Hydrogen production from ethanol is regarded as a promising way for energy sustainable development, which is undergoing an explosive growth over the last decade. Besides operating conditions, hydrogen yield greatly dependent on the nature of metal and the support selected. To date, Rh based catalysts proved to be the most active systems due to the fact that Rh possessed the greatest capacity toward C–C bond cleavage. Support also played a critical role in terms of hydrogen selectivity and stability. MgO, CeO2 and La2O3 etc were evidenced as suitable supports because of their basic characteristic and/or redox capacity. A detailed analysis based on the spectroscopic technique revealed that reaction pathways proceeded along a mono-functional or bi-functional mechanism according to the types of active metal and support. Ethanol dehydrogenation and/or dehydration reaction mainly occurred on the support, and the diffusion/transformation of the intermediates took place at the metal–support interface. Meanwhile, active metal accelerated the decomposition reaction. The observed catalyst deactivation was normally assigned to the coke formation, active metal sintering and/or oxidation as well as the impurity in crude bio-ethanol. Hence, the scope of this review is to address the present progress in ethanol reforming for hydrogen production including catalyst development and the analysis of the reaction mechanism and kinetics in order to shed light on the design of high efficient catalyst systems and the fundamental understanding of ethanol conversion at the molecular level.read more
Citations
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Steam reforming of ethanol on Rh/SiCeO2 washcoated monolith catalyst: Stable catalyst performance
TL;DR: In this article, the performance of a new Rh/CeSiO2 catalyst supported on a ceramic monolith for steam reforming (SR) of ethanol for hydrogen generation was investigated.
Journal ArticleDOI
Low temperature ethanol steam reforming for process intensification: New Ni/MxO–ZrO2 active and stable catalysts prepared by flame spray pyrolysis
Matteo Compagnoni,Antonio Tripodi,Alessandro Di Michele,Paola Sassi,Michela Signoretto,Ilenia Rossetti +5 more
TL;DR: In this paper, the feasibility of the low-temperature ethanol steam reforming (LT-ESR, 300-500°C) was investigated, taking into account both activity and deactivation issues.
Journal ArticleDOI
Rationally Designed Metal Cocatalyst for Selective Photosynthesis of Bibenzyls via Dehalogenative C–C Homocoupling
Yaru Li,Pengju Ren,Dongsheng Zhang,Wei Qiao,Dan Wang,Xiaoqin Yang,Xiaodong Wen,Mark H. Rümmeli,Hans Niemantsverdriet,James P. Lewis,Flemming Besenbacher,Hongwei Xiang,Yong-Wang Li,Ren Su +13 more
TL;DR: In this paper, the construction of C-C bonds by coupling reactions is an important process in synthetic chemistry though expensive catalysts are required, and Heterogeneous photocatalysis offers a platform for C -C co...
Journal ArticleDOI
Efficient hydrogen production from ethanol steam reforming over layer-controlled graphene-encapsulated Ni catalysts
TL;DR: In this paper, a graphene-encapsulated Ni nanoparticles (Ni@Gr) were fabricated via in-situ growth method to decrease the graphene layer number, and an approach to fabricate defects on the graphene surface was presented.
Journal ArticleDOI
Ethanol CO2 reforming on La2O3 and CeO2-promoted Cu/Al2O3 catalysts for enhanced hydrogen production
Mohd-Nasir Nor Shafiqah,Hai Nguyen Tran,Trinh Duy Nguyen,Pham T. T. Phuong,Bawadi Abdullah,Su Shiung Lam,Phuong Nguyen-Tri,Ravinder Kumar,Sonil Nanda,Dai-Viet N. Vo +9 more
TL;DR: In this paper, 3.3%Ce- and 3%La-promoted 10%Cu/Al2O3 catalysts were synthesized via a sequential incipient wetness impregnation approach and implemented for ethanol CO2 reforming (ECR) at 948-1023 K and stoichiometric feed ratio.
References
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Journal ArticleDOI
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