Electro-reforming of bioethanol produced by sugar fermentation on a Pt-Ni anodic catalyst supported on graphene nanoplatelets

Serrano-Jiménez, J.; Osa, A.R. de la; Rodríguez-Gómez, Alberto; Sánchez, Paula; Romero, Amaya; Lucas-Consuegra, A. de

doi:10.1016/j.jece.2023.109703

Cited by 11 publications

(3 citation statements)

References 64 publications

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“…Catalytic inks were prepared according to previous studies of our group. ,, In the case of inks for three-electrode cell testing, 2 mg of the anodic catalyst, 8 μL of Nafion 5 wt % ionomer solution, 250 μL of deionized water, and 750 μL of 2-propanol were mixed and ultrasonicated (110 W/50–60 Hz, Selecta) for 3 h. Inks were continuously stirred to maintain a homogeneous suspension. Inks used in the AEM electrolyzer were prepared by mixing a certain amount of the cathodic or the synthesized anodic electrocatalysts with the ionomer solution (ionomer solution/catalyst mass ratio of 3.64) and enough of 2-propanol.…”

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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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: 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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“…Nickel-containing Pt-based catalysts have demonstrated better electrochemical performance compared to other well-studied promoters such as Ru, especially at high potentials, while also being cost-effective [87]. A Pt-Ni-based anodic catalyst supported by graphene nanopatterns has been recently developed by Serrano-Jiménez et al [88], achieving competitive current density and energy consumption.…”

Section: Electrolysismentioning

confidence: 99%

Addressing Environmental Challenges: The Role of Hydrogen Technologies in a Sustainable Future

Di Nardo,

Calabrese,

Venezia

et al. 2023

Energies

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Energy and environmental issues are of great importance in the present era. The transition to renewable energy sources necessitates technological, political, and behavioral transformations. Hydrogen is a promising solution, and many countries are investing in the hydrogen economy. Global demand for hydrogen is expected to reach 120 million tonnes by 2024. The incorporation of hydrogen for efficient energy transport and storage and its integration into the transport sector are crucial measures. However, to fully develop a hydrogen-based economy, the sustainability and safety of hydrogen in all its applications must be ensured. This work describes and compares different technologies for hydrogen production, storage, and utilization (especially in fuel cell applications), with focus on the research activities under study at SaRAH group of the University of Naples Federico II. More precisely, the focus is on the production of hydrogen from bio-alcohols and its storage in formate solutions produced from renewable sources such as biomass or carbon dioxide. In addition, the use of materials inspired by nature, including biowaste, as feedstock to produce porous electrodes for fuel cell applications is presented. We hope that this review can be useful to stimulate more focused and fruitful research in this area and that it can open new avenues for the development of sustainable hydrogen technologies.

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“…To enhance the efficiency of the PEMEC and reduce the required electric potential, various catalysts and alcoholic substrates have been explored. Substances such as ethanol, methanol, formic acid and 5-hydroxymethyl-2-furoic acid have been utilised to replace the oxygen evolution reaction (OER) at the anode [35][36][37][38] Additionally, specific catalysts like Pt-modified ruthenium/iridium oxide [39] and Pt-Ni-coated graphene nanoplatelets [40] have been employed at the anode to boost the performance of PEMECs, particularly in enhancing hydrogen (H 2 ) generation. However, these noble metal-based catalysts are only efficient for the electro-oxidation of alcohols, but for raw biomass, they are ineffective and cannot be employed in PEMECs [41].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation of Hydrogen Production through Biomass Electrolysis

Umer,

Brandoni,

Jaffar

et al. 2024

Processes

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This work investigated hydrogen production from biomass feedstocks (i.e., glucose, starch, lignin and cellulose) using a 100 mL h-type proton exchange membrane electrolysis cell. Biomass electrolysis is a promising process for hydrogen production, although low in technology readiness level, but with a series of recognised advantages: (i) lower-temperature conditions (compared to thermochemical processes), (ii) minimal energy consumption and low-cost post-production, (iii) potential to synthesise high-volume H2 and (iv) smaller carbon footprint compared to thermochemical processes. A Lewis acid (FeCl3) was employed as a charge carrier and redox medium to aid in the depolymerisation/oxidation of biomass components. A comprehensive analysis was conducted, measuring the H2 and CO2 emission volume and performing electrochemical analysis (i.e., linear sweep voltammetry and chronoamperometry) to better understand the process. For the first time, the influence of temperature on current density and H2 evolution was studied at temperatures ranging from ambient temperature (i.e., 19 °C) to 80 °C. The highest H2 volume was 12.1 mL, which was produced by FeCl3-mediated electrolysis of glucose at ambient temperature, which was up to two times higher than starch, lignin and cellulose at 1.20 V. Of the substrates examined, glucose also showed a maximum power-to-H2-yield ratio of 30.99 kWh/kg. The results showed that hydrogen can be produced from biomass feedstock at ambient temperature when a Lewis acid (FeCl3) is employed and with a higher yield rate and a lower electricity consumption compared to water electrolysis.

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Electro-reforming of bioethanol produced by sugar fermentation on a Pt-Ni anodic catalyst supported on graphene nanoplatelets

Cited by 11 publications

References 64 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

Addressing Environmental Challenges: The Role of Hydrogen Technologies in a Sustainable Future

An Experimental Investigation of Hydrogen Production through Biomass Electrolysis

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