Sustainable 2,5-furandicarboxylic synthesis by a direct 5-hydroxymethylfurfural fuel cell based on a bifunctional PtNiSx catalyst

2020 ◽  
Vol 56 (88) ◽  
pp. 13611-13614
Author(s):  
Jialu Wang ◽  
Xian Zhang ◽  
Guozhong Wang ◽  
Yunxia Zhang ◽  
Haimin Zhang
Keyword(s):  
Fuel Cell ◽  
Electric Energy ◽  
Value Added ◽  
Chemical Energy ◽  
New Type

A new type of direct 5-hydroxymethylfurfural (HMF) oxidation fuel cell based on a bifunctional PtNiSx/CB catalyst not only transformed chemical energy into electric energy but also converted HMF into value-added 2,5-furandicarboxylic (FDCA).

Current progress and performance improvement of Pt/C catalysts for fuel cells

2020 ◽  
Vol 8 (46) ◽  
pp. 24284-24306
Author(s):  
Xuefeng Ren ◽  
Yiran Wang ◽  
Anmin Liu ◽  
Zhihong Zhang ◽  
Qianyuan Lv ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Energy Conversion ◽  
Performance Improvement ◽  
Electric Energy ◽  
Energy Conversion Efficiency ◽  
High Energy ◽  
Carnot Cycle ◽  
High Energy Conversion Efficiency ◽  
And Performance

Fuel cell is an electrochemical device, which can directly convert the chemical energy of fuel into electric energy, without heat process, not limited by Carnot cycle, high energy conversion efficiency, no noise and pollution.

Photoassisted chemical energy conversion into electricity using a sulfite‑iron photocatalytic fuel cell

2021 ◽  
Vol 881 ◽  
pp. 114940
Author(s):  
Izabela Campos Sena ◽  
Davi de Oliveira Sales ◽  
Tatiana Santos Andrade ◽  
Mariandry Rodriguez ◽  
Adilson Cândido da Silva ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Energy Conversion ◽  
Chemical Energy ◽  
Photocatalytic Fuel Cell

scholarly journals Performance of Sulfide-Driven Fuel Cell Aerated by Venturi Tube Ejector

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 694
Author(s):  
Venko N. Beschkov ◽  
Elena N. Razkazova-Velkova ◽  
Martin S. Martinov ◽  
Stefan M. Stefanov
Keyword(s):  
Hydrogen Sulfide ◽  
Fuel Cell ◽  
Electric Energy ◽  
Gas Diffusion ◽  
Venturi Tube ◽  
Polluted Water ◽  
The Black Sea ◽  
High Hydrogen ◽  
Mass Transfer Limitation ◽  
Pure Graphite

Hydrogen sulfide is frequently met in natural waters, like mineral springs, but mostly it is found in marine water with low renewal rate. The Black Sea has extremely high hydrogen sulfide content. It can be utilized in different ways, but the most promising one is direct conversion into electricity. This result can be attained by a sulfide-driven fuel cell (SDFC), converting sulfide to sulfate thus releasing electric energy up to 24 GJ/t. One of the most important problems is the mass transfer limitation on oxygen transfer in the cathode space of the fuel cell. This problem can be solved using a gas diffusion electrode or highly efficient saturation by oxygen in an ejector of the Venturi tube type. This work presents experimental data in laboratory-scale SDFC for sulfide conversion into sulfate, sulfite and polysulfide releasing different amounts of electric energy. Two types of aeration are tested: direct air blow and Venturi-tube ejector. Besides pure graphite, two catalysts, i.e., cobalt spinel and zirconia-doped graphite were tested as anodes. Experiments were carried out at initial sulfide concentrations from 50 to 300 mg/L. Sulfate, sulfite and thiosulfate ions were detected in the outlet solutions from the fuel cell. The electrochemical results show good agreement with the chemical analyses. Most of the results show attained high efficiencies of the fuel cell, i.e. up to 80%. The practical applications of this method can be extended for other purposes, like treatment of polluted water together with utilization as energy.

scholarly journals Recent advances on biomass-fueled microbial fuel cell

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Jamile Mohammadi Moradian ◽  
Zhen Fang ◽  
Yang-Chun Yong
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Electric Energy ◽  
Clean Energy ◽  
Biomass Energy ◽  
Energy Resources ◽  
Energy Industry ◽  
Renewable Energy Resources ◽  
Future Perspectives ◽  
The Earth

AbstractBiomass is one of the most abundant renewable energy resources on the earth, which is also considered as one of the most promising alternatives to traditional fuel energy. In recent years, microbial fuel cell (MFC) which can directly convert the chemical energy from organic compounds into electric energy has been developed. By using MFC, biomass energy could be directly harvested with the form of electricity, the most convenient, wide-spread, and clean energy. Therefore, MFC was considered as another promising way to harness the sustainable energies in biomass and added new dimension to the biomass energy industry. In this review, the pretreatment methods for biomass towards electricity harvesting with MFC, and the microorganisms utilized in biomass-fueled MFC were summarized. Further, strategies for improving the performance of biomass-fueled MFC as well as future perspectives were highlighted.

A Comparison Between Life Cycle Assessment of an MCFC System, An LFG-MCFC System, and Traditional Energy Conversion Systems

2004 ◽  
Author(s):  
U. Desideri ◽  
P. Lunghi ◽  
F. Zepparelli
Keyword(s):  
Life Cycle Assessment ◽  
Fuel Cell ◽  
Environmental Impact ◽  
Energy Conversion ◽  
Landfill Gas ◽  
Electric Energy ◽  
Cell System ◽  
Fuel Cell System ◽  
Cell Systems ◽  
Energy Conversion Systems

The present work aims at evaluating the environmental impact caused by fuel cell systems in the production of electric energy. The very low pollutant emission levels in fuel cells makes them an attractive alternative in ultra clean energy conversion systems. Actually, to truly understand the environmental impact related to fuel cells, it is necessary to study their “cradle-to-grave” life, from the construction phase, during the conversion of primary fuel into hydrogen, to its disposal. The tool used in this analysis is the Life Cycle Assessment approach; in particular the environmental impact of a fuel cell system has been simulated through the software SimaPro 5.0. Thanks to this approach, once the critical process regarding the production of energy by fuel cell system, (i.e. the production of hydrogen by natural gas steam reforming), has been determined, an analysis of the use of landfill gas as a renewable source to produce hydrogen was done. Finally, the production of electric energy by fuel cell systems was compared to that by some conventional energy conversion systems. A second comparison was done between the Molten Carbonate Fuel Cell (MCFC) fuelled by landfill gas and natural gas.

scholarly journals Economic and Environmental Multiobjective Optimization of a Wind–Solar–Fuel Cell Hybrid Energy System in the Colombian Caribbean Region

Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2119 ◽  
Author(s):  
Guillermo Valencia ◽  
Aldair Benavides ◽  
Yulineth Cárdenas
Keyword(s):  
Fuel Cell ◽  
Wind Speed ◽  
Solar Radiation ◽  
Electric Energy ◽  
Energy System ◽  
Proton Exchange ◽  
Caribbean Region ◽  
Pv System ◽  
Hydrogen Flow ◽  
Simon Bolivar

A hybrid system was analyzed and optimized to produce electric energy in non-interconnected zones in the Colombian Caribbean region, contributing to the reduction of greenhouse gas emissions and the improvement in efficient energy management. A comparative analysis of the performance of hybrid was conducted using a proposed model, built with historical data for meteorological conditions, wind speed, and solar radiation. The model is integrated by a Southwest Wind Power Inc. wind turbine AIR 403, a proton-exchange membrane fuel cell (PEM), an electrolyzer, a solar panel, and a regulator based on proportional, integral, and derivative (PID) controllers to manipulate oxygen and hydrogen flow entering in the fuel cell. The transient responses of the cell voltage, current, and power were obtained for the demand of 200 W under changes in solar radiation and wind speed for each day of the year 2013 in different meteorological stations, such as Ernesto Cortissoz airport, Puerto Bolívar, Alfonso Lopez airport, and Simon Bolívar airport. Through the adjustment of the hydrogen and oxygen flow into the fuel cell, the maximum contribution of power generation from the fuel cell was presented for the Simon Bolívar airport in November with a value of 158.35 W (9.45%). Multiobjective design optimization under a Pareto diagram front is presented for each place studied to minimize the levelized cost of energy and CO2 emission, where the objective control variables are the number of panel and stack in the photovoltaic (PV) system and PEM.

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