Plasma-catalysis reforming for H2 production from ethanol

Du, Changming; Ma, Danyan; Wu, Jiao; Lin, Yanchun; Xiao, Wen; Ruan, Jujun; Huang, Dongwei

doi:10.1016/j.ijhydene.2015.09.096

Cited by 24 publications

(18 citation statements)

References 37 publications

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“…In this case, due to the direct and constant interface between catalyst and plasma, two main types of interaction are induced. The first is the action of the plasma upon the catalyst, which decreases the temperature required for its activation because the temperature of electrons notably exceeds that of heavier species (gas temperature) and also generates intermediate species from reactants with greater adsorption potential (Du et al, 2015). This latter phenomenon is explained by the fact that plasma modifies the physicochemical characteristics of the catalyst surface, increasing the adsorption of molecules onto it due to electrostatic forces over a large surface area (Chen et al, 2017).…”

Section: Synergistic Effects Between Plasma and Heterogeneous Catalysismentioning

confidence: 99%

“…Due to these obstacles, the use of plasma technologies, mainly nonthermal plasma, in the preparation of supported metal catalysts has attracted a lot of attention (Liu et al, 2002). It can reduce the size of catalytic sites, improving dispersion and metal-support interaction using less or no hazardous chemicals (Du et al, 2015;Chung and Chang, 2016). Such improvements also lead to increased catalyst activity and stability.…”

Section: Plasma-assisted Preparation Processesmentioning

confidence: 99%

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The Potential of Non-thermal Plasmas in the Preparation of Supported Metal Catalysts for Fuel Conversion in Automotive Systems: A Literature Overview

2020

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The growing demand for energy worldwide and the extensive use of fossil fuels have resulted in severe environmental problems such as air pollution and the accumulation of greenhouse gases in the atmosphere. In this scenario, both new energy sources and more efficient energy conversion processes have been deeply studied. Heterogeneous catalysis is currently widely used for hydrogen production due to its higher selectivity and conversion compared to other processes. Although the use of catalysts is fundamental for green chemistry, their production through traditional methods is less environmentally friendly. Nonetheless, in order to obtain more efficient supported metal catalysts, interest in using non-thermal plasma as a pretreatment or synthesis technique is increasing. Thus, the present article aims at summarizing and briefly discussing the relevant research results on this subject, elucidating the advantages and disadvantages of using nonthermal plasmas in the preparation of supported metal catalysts. Aspects such as morphology, the chemical composition of the catalytic surface, crystallographic phases, average size and dispersion of crystallites, specific surface area, and metal-support interaction have been analyzed. The use of plasma-assisted techniques contributes to the synthesis of supported metal catalysts with smaller, more dispersed, and strongly bonded active particles, resulting in higher catalytic activity, conversion rate, selectivity, and durability. In addition, plasma allows the synthesis of supported metal catalysts to be enhanced by reducing the process time, the use of hazardous substances, and the temperature required.

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Section: Synergistic Effects Between Plasma and Heterogeneous Catalysismentioning

confidence: 99%

Section: Plasma-assisted Preparation Processesmentioning

confidence: 99%

The Potential of Non-thermal Plasmas in the Preparation of Supported Metal Catalysts for Fuel Conversion in Automotive Systems: A Literature Overview

2020

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“…Ethanol, a hydrogen-rich renewable resource, can be mixed with water in any proportion and shows reducibility. Research on reforming hydrogen production from ethanol has recently gained interest [19,20,21]. Plasma technology has been used to reform hydrogen production from ethanol.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Pd/C by Atmospheric-Pressure Ethanol Cold Plasma and Its Preparation Mechanism

Zhang

Wang

et al. 2019

Nanomaterials

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Treatment with atmospheric-pressure (AP) hydrogen cold plasma is an effective method for preparing highly active supported metal catalytic materials. However, this technique typically uses H2 as working gas, which is explosive and difficult to transport. This study proposes the use of PdCl2 as a Pd precursor and activated carbon as the support to fabricate Pd/C catalytic materials (Pd/C-EP-Ar) by using ethanol—which is renewable, easily stored, and safe—combined with AP cold plasma (AP ethanol cold plasma) followed by calcination in Ar gas at 550 °C for 2 h. Both Pd/C-EP and Pd/C-HP fabricated using AP ethanol and hydrogen cold plasma (without calcination in Ar gas) respectively, exhibit low CO oxidation reactivity. The activity of Pd/C-EP is lower than Pd/C-HP, which is mainly ascribed to the carbon layer formed by ethanol decomposition during plasma treatment. However, the 100% CO conversion temperature (T100) of Pd/C-EP-Ar is 140 °C, which is similar to that of Pd/C-HP-Ar fabricated using AP hydrogen cold plasma (calcined in Ar gas at 550 °C for 2 h). The characterization results of X-ray diffraction, X-ray photoelectron spectroscopy, and transmission electron microscopy indicated that the carbon layer formed by ethanol decomposition enhanced the interaction of metal nanoparticles to the support, and a high Pd/C atomic ratio was obtained. This was beneficial to the high CO oxidation performance. This work provides a safe method for synthesizing high-performance Pd/C catalytic materials avoiding the use of H2, which is explosive and difficult to transport.

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“…Despite this, hydrogen is an attractive alternative for carbonbased fuels since it can be produced from a variety of renewable resources (biomass, solar, water, geothermal) and non-renewable resources (coal, natural gas, nuclear energy) using energy in the form of electricity or heat 5 . Catalysis is the most widely used method for hydrogen production because it has higher conversion rate and hydrogen selectivity compared to other processes 6 .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the use of plasma-assisted processes as standard method for supported catalysts production

Santos

Catapan

Duarte

2019

RBAV

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The combination of plasma processes and heterogeneous catalysis for hydrogen production (H 2) is an innovative green technology, resulting in synergic effects and unique fuel conversion outcomes, such as greater selectivity and lower activation temperature. The present study aims at investigating the feasibility of using plasmaassisted processes as standard technique to produce supported metals catalysts. For this, owing to the higher cost of nickel and cobalt (traditional catalytic metals) compared to other more common metals, iron was selected as testing material. Fe/Al 2 O 3 supported catalysts can be applied in dry reforming of methane (DRM), the main component of natural gas.

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Plasma-catalysis reforming for H2 production from ethanol

Cited by 24 publications

References 37 publications

The Potential of Non-thermal Plasmas in the Preparation of Supported Metal Catalysts for Fuel Conversion in Automotive Systems: A Literature Overview

The Potential of Non-thermal Plasmas in the Preparation of Supported Metal Catalysts for Fuel Conversion in Automotive Systems: A Literature Overview

Preparation of Pd/C by Atmospheric-Pressure Ethanol Cold Plasma and Its Preparation Mechanism

Evaluation of the use of plasma-assisted processes as standard method for supported catalysts production

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