CO2 utilization: Direct power generation by a coupled system that integrates photocatalytic reduction of CO2 with photocatalytic fuel cell

Xie, Fengjia; Chen, Rong; Zhu, Xun; Liu, Qiang; Ye, Dingding; Zhang, Biao; Yu, Youxu; Li, Jinwang

doi:10.1016/j.jcou.2019.03.017

Cited by 26 publications

(10 citation statements)

References 27 publications

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“…The separation of water splitting and CO 2 photoreduction by a proton exchange membrane could improve CO 2 conversion efficiency [15]. Therefore, the novel twin photoreactor [15], photoelectrocatalytic process [42,43] and thin-film reactor with modified photocatalysts [44] might be promising reactor designs for CO 2 photoreduction.…”

Section: Discussionmentioning

confidence: 99%

Investigation of carbon dioxide photoreduction process in a laboratory-scale photoreactor by computational fluid dynamic and reaction kinetic modeling

Luo

Thompson

et al. 2021

Front. Chem. Sci. Eng.

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The production of solar fuels via the photoreduction of carbon dioxide to methane by titanium oxide is a promising process to control greenhouse gas emissions and provide alternative renewable fuels. Although several reaction mechanisms have been proposed, the detailed steps are still ambiguous, and the limiting factors are not well defined. To improve our understanding of the mechanisms of carbon dioxide photoreduction, a multi-physics model was developed using COMSOL. The novelty of this work is the computational fluid dynamic model combined with the novel carbon dioxide photoreduction intrinsic reaction kinetic model, which was built based on three-steps, namely gas adsorption, surface reactions and desorption, while the ultraviolet light intensity distribution was simulated by the Gaussian distribution model and Beer-Lambert model. The carbon dioxide photoreduction process conducted in a laboratory-scale reactor under different carbon dioxide and water moisture partial pressures was then modeled based on the intrinsic kinetic model. It was found that the simulation results for methane, carbon monoxide and hydrogen yield match the experiments in the concentration range of 10−4 mol·m−3 at the low carbon dioxide and water moisture partial pressure. Finally, the factors of adsorption site concentration, adsorption equilibrium constant, ultraviolet light intensity and temperature were evaluated.

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Section: Discussionmentioning

confidence: 99%

Investigation of carbon dioxide photoreduction process in a laboratory-scale photoreactor by computational fluid dynamic and reaction kinetic modeling

Luo

Thompson

et al. 2021

Front. Chem. Sci. Eng.

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“…Moreover, the gradient band structure increased the separation of electron/hole pairs. Xie et al [174] reported a coupling system integrating photocatalytic reduction of CO2 and PFC. The product of photocatalytic reduction of CO2 was directly used as a fuel for the PFC to generate power.…”

Section: Optofluidics Based Micro-pfcmentioning

confidence: 99%

Photocatalytic fuel cell – A review

Chen

Leung

et al. 2022

Chemical Engineering Journal

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“…Nevertheless, photocatalytic CO 2 reduction's low yield and product selectivity pose substantial hurdles to its broad use. To solve this critical problem, Xie and colleagues [162] created a coupled system that combines photocatalytic CO 2 reduction with photocatalytic fuel cells (PFC) for carbon-dioxide energy production. Under this combined systems, the results of photocatalytic CO 2 reduction serve as fuel for the PFC, which generates electricity directly.…”

Section: Development Of a Newer Fuel-cell Technology That Produces El...mentioning

confidence: 99%

The Review of Carbon Capture-Storage Technologies and Developing Fuel Cells for Enhancing Utilization

et al. 2021

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The amount of CO2 released in the atmosphere has been at a continuous surge in the last decade, and in order to protect the environment from global warming, it is necessary to employ techniques like carbon capture. Developing technologies like Carbon Capture Utilization and Storage aims at mitigating the CO2 content from the air we breathe and has garnered immense research attention. In this review, the authors have aimed to discuss the various technologies that are being used to capture the CO2 from the atmosphere, store it and further utilize it. For utilization, researchers have developed alternatives to make profits from CO2 by converting it into an asset. The development of newer fuel cells that consume CO2 in exchange for electrical power to drive the industries and produce valuable hydrocarbons in the form of fuel has paved the path for more research in the field of carbon utilization. The primary focus on the article is to inspect the environmental and economic feasibility of novel technologies such as fuel cells, different electrochemical processes, and the integration of artificial intelligence and data science in them, which are designed for mitigating the percentage of CO2 in the air.

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CO2 utilization: Direct power generation by a coupled system that integrates photocatalytic reduction of CO2 with photocatalytic fuel cell

Cited by 26 publications

References 27 publications

Investigation of carbon dioxide photoreduction process in a laboratory-scale photoreactor by computational fluid dynamic and reaction kinetic modeling

Investigation of carbon dioxide photoreduction process in a laboratory-scale photoreactor by computational fluid dynamic and reaction kinetic modeling

Photocatalytic fuel cell – A review

The Review of Carbon Capture-Storage Technologies and Developing Fuel Cells for Enhancing Utilization

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