Boosting hydrogen and chemicals production through ethanol electro-reforming on Pt-transition metal anodes

Rodríguez-Gómez, Alberto; Dorado, Fernando; Sánchez, Paula; Osa, A.R. de la

doi:10.1016/j.jechem.2022.02.028

Cited by 20 publications

(14 citation statements)

References 96 publications

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“…Note that no significant peak was appreciated at 2θ ≈ 62.88° in this case, typically found for NiO (220) reflection. , In the case of the PtCo/GNPs electrocatalyst, the peaks typically associated with the Co structures at diffraction angles of 44°, 52°, and 76°, which correspond to (111), (200), and (220) planes of Co structures (JCPDS No. 01-089-4307), were complicated to distinguish due to the overlap of these signals with those of Pt planes …”

Section: Resultsmentioning

confidence: 99%

“…Monometallic and bimetallic anodic electrocatalysts were synthesized using the modified polyol method, which was previously demonstrated in our group to be suitable for obtaining small crystallite sizes in PtNi and PtCo electrocatalysts. , A metal loading of 40 wt % was established for all electrocatalysts, which was demonstrated to be optimal in terms of electrochemical activity and durability on GNPs, according to a previous work from our group involving the electrochemical reforming of ethanol …”

Section: Methodsmentioning

confidence: 99%

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Boosting the Electrolysis of Monosaccharide-Based Streams in an Anion-Exchange Membrane Cell

Serrano-Jiménez,

de la Osa,

Sánchez

et al. 2024

Energy Fuels

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A systematic study on the electrochemical reforming of monosaccharides (fructose, glucose, and xylose) using Ptbased anodic electrocatalysts is here presented for the first time to completely optimize the anodic catalyst and electrolyzer operating conditions. First, the electro-oxidation of each molecule was studied using a monometallic (Pt) and two bimetallic (PtNi and PtCo) anodic electrocatalysts supported on graphene nanoplatelets (GNPs). Tests in a three-electrode cell showed superior electrochemical activity and durability of PtNi/GNPs, especially at potentials higher than 1.2 V vs RHE, with the highest electrocatalytic activity in D-xylose electro-oxidation. Then, monometallic (Pt and Ni) and bimetallic electrocatalysts with different Pt:Ni mass ratios (1:1 and 2:1) were studied for D-xylose electro-oxidation, with the 2:1 mass ratio presenting the best results. This electrocatalyst was selected as the most suitable for scaleup to an anion-exchange membrane electrolyzer, where the optimal operating potential was determined. Additionally, stable operating conditions of the electrolyzer were achieved by cyclic H 2 production and cathodic regeneration polarization steps. This led to suitable and reproducible H 2 production rates throughout the production cycles for renewable hydrogen production from biomass-derived streams.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Boosting the Electrolysis of Monosaccharide-Based Streams in an Anion-Exchange Membrane Cell

Serrano-Jiménez,

de la Osa,

Sánchez

et al. 2024

Energy Fuels

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“…Half-cell reactions on the anode and cathode suggest that the overall reaction in MeOH electrolysis is the dehydrogenation of MeOH (eqn (5)), whereby value-added products (FA and H 2 ) are formed on both the anode and cathode simultaneously. H 2 generation integrated with the oxidation of organic molecules has been paid attention, 56–61 and simultaneous synthesis of formate and H 2 from methanol was recently reported. 62,63 This study revealed that the Pd catalyst is effective for the synthesis of H 2 and FA from methanol electrolysis.CH 3 OH → HCHO + H 2 …”

Section: Resultsmentioning

confidence: 99%

Proton exchange membrane electrolysis of methanol for simultaneously synthesizing formaldehyde and hydrogen

Kuramochi

Yoshida-Hirahara

Ogihara

et al. 2023

Sustainable Energy Fuels

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“…To solve this problem, an alloying strategy is often utilized to modulate the electronic structure of active sites, thus enhancing the CO anti-poisoning ability, and thereby boosting the alcohol electrooxidation activity. Alberto Rodríguez-Gómez et al [ 46 ] developed a Pt-based bimetallic catalyst system (PtM) to boost hydrogen and value-added compound generation (acetic acid, acetaldehyde and ethyl acetate). They found that this secondary metal can influence the electrocatalytic performance as well as product distribution.…”

Section: Anodic Our Of Organic Compounds In Parallel With Her (Our||her)mentioning

confidence: 99%

Killing Two Birds with One Stone: Upgrading Organic Compounds via Electrooxidation in Electricity-Input Mode and Electricity-Output Mode

Chen

Wang

et al. 2023

Materials

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The electrochemically oxidative upgrading reaction (OUR) of organic compounds has gained enormous interest over the past few years, owing to the advantages of fast reaction kinetics, high conversion efficiency and selectivity, etc., and it exhibits great potential in becoming a key element in coupling with electricity, synthesis, energy storage and transformation. On the one hand, the kinetically more favored OUR for value-added chemical generation can potentially substitute an oxygen evolution reaction (OER) and integrate with an efficient hydrogen evolution reaction (HER) or CO2 electroreduction reaction (CO2RR) in an electricity-input mode. On the other hand, an OUR-based cell or battery (e.g., fuel cell or Zinc–air battery) enables the cogeneration of value-added chemicals and electricity in the electricity-output mode. For both situations, multiple benefits are to be obtained. Although the OUR of organic compounds is an old and rich discipline currently enjoying a revival, unfortunately, this fascinating strategy and its integration with the HER or CO2RR, and/or with electricity generation, are still in the laboratory stage. In this minireview, we summarize and highlight the latest progress and milestones of the OUR for the high-value-added chemical production and cogeneration of hydrogen, CO2 conversion in an electrolyzer and/or electricity in a primary cell. We also emphasize catalyst design, mechanism identification and system configuration. Moreover, perspectives on OUR coupling with the HER or CO2RR in an electrolyzer in the electricity-input mode, and/or the cogeneration of electricity in a primary cell in the electricity-output mode, are offered for the future development of this fascinating technology.

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Boosting hydrogen and chemicals production through ethanol electro-reforming on Pt-transition metal anodes

Cited by 20 publications

References 96 publications

Boosting the Electrolysis of Monosaccharide-Based Streams in an Anion-Exchange Membrane Cell

Boosting the Electrolysis of Monosaccharide-Based Streams in an Anion-Exchange Membrane Cell

Proton exchange membrane electrolysis of methanol for simultaneously synthesizing formaldehyde and hydrogen

Killing Two Birds with One Stone: Upgrading Organic Compounds via Electrooxidation in Electricity-Input Mode and Electricity-Output Mode

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