Recent advances in and comprehensive consideration of the oxidation half reaction in photocatalytic CO2 conversion

2021 ◽  
Vol 9 (1) ◽  
pp. 87-110
Author(s):  
Yanjie Wang ◽  
Tao He
Keyword(s):  
Conversion Efficiency ◽  
Complete Picture ◽  
Co2 Conversion ◽  
Oxidation Reactions ◽  
Recent Advances ◽  
Photocatalytic Co2 Conversion

This review highlights oxidation reactions that accompany the CO2RR, which can provide a complete picture of photocatalysis to improve the conversion efficiency.

Improved photocatalytic CO2 conversion efficiency on Ag loaded porous Ta2O5

2021 ◽  
Vol 563 ◽  
pp. 150273
Author(s):  
Shaojie Wei ◽  
Qianqian Heng ◽  
Yufeng Wu ◽  
Wei Chen ◽  
Xiying Li ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Co2 Conversion ◽  
Photocatalytic Co2 Conversion

Recent Advances in Heterogeneous Photocatalytic CO2 Conversion to Solar Fuels

ACS Catalysis ◽  
2016 ◽  
Vol 6 (11) ◽  
pp. 7485-7527 ◽  
Author(s):  
Kan Li ◽  
Bosi Peng ◽  
Tianyou Peng
Keyword(s):  
Solar Fuels ◽  
Co2 Conversion ◽  
Recent Advances ◽  
Photocatalytic Co2 Conversion

Photocatalytic CO2 conversion over single-atom MoN2 sites of covalent organic framework

2021 ◽  
Vol 291 ◽  
pp. 120146
Author(s):  
Mingpu Kou ◽  
Wei Liu ◽  
Yongye Wang ◽  
Jindi Huang ◽  
Yanli Chen ◽  
...  
Keyword(s):  
Single Atom ◽  
Co2 Conversion ◽  
Covalent Organic Framework ◽  
Photocatalytic Co2 Conversion ◽  
Organic Framework

scholarly journals Solid-State Redox Kinetics of CeO2 in Two-Step Solar CH4 Partial Oxidation and Thermochemical CO2 Conversion

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 723
Author(s):  
Mahesh Muraleedharan Nair ◽  
Stéphane Abanades
Keyword(s):  
Solid State ◽  
Solar Energy ◽  
Kinetic Models ◽  
Oxygen Carrier ◽  
Co2 Conversion ◽  
Oxidation Reactions ◽  
Redox Kinetics ◽  
Concentrated Solar Energy ◽  
Ceria Reduction ◽  
Kinetics Of

The CeO2/CeO2−δ redox system occupies a unique position as an oxygen carrier in chemical looping processes for producing solar fuels, using concentrated solar energy. The two-step thermochemical ceria-based cycle for the production of synthesis gas from methane and solar energy, followed by CO2 splitting, was considered in this work. This topic concerns one of the emerging and most promising processes for the recycling and valorization of anthropogenic greenhouse gas emissions. The development of redox-active catalysts with enhanced efficiency for solar thermochemical fuel production and CO2 conversion is a highly demanding and challenging topic. The determination of redox reaction kinetics is crucial for process design and optimization. In this study, the solid-state redox kinetics of CeO2 in the two-step process with CH4 as the reducing agent and CO2 as the oxidizing agent was investigated in an original prototype solar thermogravimetric reactor equipped with a parabolic dish solar concentrator. In particular, the ceria reduction and re-oxidation reactions were carried out under isothermal conditions. Several solid-state kinetic models based on reaction order, nucleation, shrinking core, and diffusion were utilized for deducing the reaction mechanisms. It was observed that both ceria reduction with CH4 and re-oxidation with CO2 were best represented by a 2D nucleation and nuclei growth model under the applied conditions. The kinetic models exhibiting the best agreement with the experimental reaction data were used to estimate the kinetic parameters. The values of apparent activation energies (~80 kJ·mol−1 for reduction and ~10 kJ·mol−1 for re-oxidation) and pre-exponential factors (~2–9 s−1 for reduction and ~123–253 s−1 for re-oxidation) were obtained from the Arrhenius plots.

Enhancement of CO2 Conversion Rate and Conversion Efficiency by Homogeneous Discharges

2012 ◽  
Vol 32 (5) ◽  
pp. 979-989 ◽  
Author(s):  
Shuang Wang ◽  
Yong Zhang ◽  
Xiaolin Liu ◽  
Xiangrong Wang
Keyword(s):  
Conversion Efficiency ◽  
Conversion Rate ◽  
Co2 Conversion

Water nanodomain for efficient photocatalytic CO2 reduction to CO

2021 ◽  
Author(s):  
Gang Chen ◽  
Xiuyan Cheng ◽  
Jianling Zhang ◽  
Qiang Wan ◽  
Ran Duan ◽  
...  
Keyword(s):  
Co2 Reduction ◽  
Evolution Rate ◽  
Co2 Conversion ◽  
Photocatalytic Co2 Conversion

Herein we propose the utilization of nanosized water domain for photocatalytic CO2 conversion, by which CO2 can be efficiently reduced to CO with CO evolution rate of 682 µmol g-1...

Recent advances in critical materials for quantum dot-sensitized solar cells: a review

2015 ◽  
Vol 3 (34) ◽  
pp. 17497-17510 ◽  
Author(s):  
Jialong Duan ◽  
Huihui Zhang ◽  
Qunwei Tang ◽  
Benlin He ◽  
Liangmin Yu
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Conversion Efficiency ◽  
Light Absorption ◽  
Solar Spectrum ◽  
Cost Effective ◽  
Silicon Solar Cells ◽  
Recent Advances ◽  
Critical Materials ◽  
Sensitized Solar Cells

Quantum dot-sensitized solar cells (QDSCs) present promising cost-effective alternatives to conventional silicon solar cells due to their distinctive properties such as simplicity in fabrication, possibility to realize light absorption in wide solar spectrum regions, and theoretical conversion efficiency up to 44%.

Is water more reactive than H2 in photocatalytic CO2 conversion into fuels using semiconductor catalysts under high reaction pressures?

2017 ◽  
Vol 352 ◽  
pp. 452-465 ◽  
Author(s):  
Hongwei Zhang ◽  
Shogo Kawamura ◽  
Masayuki Tamba ◽  
Takashi Kojima ◽  
Mao Yoshiba ◽  
...  
Keyword(s):  
Co2 Conversion ◽  
High Reaction ◽  
Photocatalytic Co2 Conversion

Photocatalytic CO2 conversion to methanol by Cu2O/graphene/TNA heterostructure catalyst in a visible-light-driven dual-chamber reactor

Nano Energy ◽  
2016 ◽  
Vol 27 ◽  
pp. 320-329 ◽  
Author(s):  
Fei Li ◽  
Li Zhang ◽  
Jincheng Tong ◽  
Yingliang Liu ◽  
Shengang Xu ◽  
...  
Keyword(s):  
Visible Light ◽  
Co2 Conversion ◽  
Dual Chamber ◽  
Visible Light Driven ◽  
Photocatalytic Co2 Conversion
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