Co(OH)2 water oxidation cocatalyst-decorated CdS nanowire for enhanced photocatalytic CO2 reduction performance

2021 ◽  
Author(s):  
Yuyan Xu ◽  
Zhongkai Xie ◽  
Rui Yu ◽  
Min Chen ◽  
Deli Jiang
Keyword(s):  
Greenhouse Effect ◽  
Water Oxidation ◽  
Co2 Reduction ◽  
Energy Crisis ◽  
Promising Technology ◽  
Cds Nanowire ◽  
Cds Nanowires

Photocatalytic CO2 reduction is a promising technology to resolve the greenhouse effect and energy crisis. In this work, Co(OH)2 nanoparticles decorated CdS nanowires (Co(OH)2/CdS) heterostructure photocatalyst was prepared via a...

A mononuclear copper complex as bifunctional electrocatalyst for CO2 reduction and water oxidation

2021 ◽  
pp. 115106
Author(s):  
Ning-ning Shi ◽  
Wang-jing Xie ◽  
Dong-mei Zhang ◽  
Yu-Hua Fan ◽  
Lian-Sheng Cui ◽  
...  
Keyword(s):  
Copper Complex ◽  
Water Oxidation ◽  
Co2 Reduction ◽  
Bifunctional Electrocatalyst

Carbon nitride derivatives as photocatalysts for the CO2 reduction reaction: computational study

2021 ◽  
Vol 23 (5) ◽  
pp. 3401-3406
Author(s):  
Siru Li ◽  
Yu Tian ◽  
Likai Yan ◽  
Zhongmin Su
Keyword(s):  
Carbon Nitride ◽  
Computational Study ◽  
Co2 Reduction ◽  
Environmental Problems ◽  
Reduction Reaction ◽  
Photocatalytic Reduction ◽  
Energy Crisis ◽  
Promising Strategy ◽  
Co2 Reduction Reaction

Photocatalytic reduction of CO2 to hydrocarbons is considered to be a promising strategy to solve the energy crisis and environmental problems.

Direct Z-scheme Sn-In2O3/In2S3 heterojunction nanostructures for enhanced photocatalytic CO2 reduction activity

2021 ◽  
Author(s):  
Yinyi Ma ◽  
Zemin Zhang ◽  
Xiao Jiang ◽  
Rongke Sun ◽  
Mingzheng Xie ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Environmental Pollution ◽  
Light Absorption ◽  
Co2 Reduction ◽  
Photocatalytic Reduction ◽  
Practical Significance ◽  
Energy Crisis ◽  
Low Light ◽  
Reduction Activity

Photocatalytic reduction of carbon dioxide into chemical fuels has great practical significance in solving energy crisis and environmental pollution, but remains a big challenge owing to its low light absorption...

An Unprecedented Polyoxometalate-Encapsulated Organo-Metallophosphate Framework as Highly Efficient Cocatalyst for CO2 Photoreduction

2022 ◽  
Author(s):  
Zeyu Du ◽  
Yingnan Xue ◽  
Xiaomei Liu ◽  
Ningfang Li ◽  
Jilei Wang ◽  
...  
Keyword(s):  
Greenhouse Effect ◽  
Photocatalytic Reduction ◽  
Energy Crisis ◽  
Co2 Photoreduction ◽  
Design And Synthesis ◽  
Highly Efficient ◽  
Reduction Of Co2

The photocatalytic reduction of CO2 to chemical fuels is attractive for addressing both greenhouse effect and energy crisis, but the key challenge is the design and synthesis of photocatalyst with...

scholarly journals Amorphous CoO coupled carbon dots as a spongy porous bifunctional catalyst for efficient photocatalytic water oxidation and CO2 reduction

2020 ◽  
Vol 41 (12) ◽  
pp. 1826-1836 ◽  
Author(s):  
Wanjun Sun ◽  
Xiangyu Meng ◽  
Chunjiang Xu ◽  
Junyi Yang ◽  
Xiangming Liang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Carbon Dots ◽  
Co2 Reduction ◽  
Bifunctional Catalyst

Immobilization of catalytic sites on quantum dots by ligand bridging for photocatalytic CO2 reduction

Nanoscale ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 2507-2514 ◽  
Author(s):  
Yipeng Bao ◽  
Jin Wang ◽  
Qi Wang ◽  
Xiaofeng Cui ◽  
Ran Long ◽  
...  
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Quantum Dots ◽  
Solar Energy ◽  
Fossil Fuels ◽  
Co2 Reduction ◽  
Energy Crisis ◽  
Great Promise ◽  
Catalytic Sites ◽  
Global Problems

Harvesting solar energy to convert carbon dioxide (CO2) into fossil fuels shows great promise to solve the current global problems of energy crisis and climate change.

scholarly journals Durable photoelectrochemical CO2 reduction with water oxidation using a visible-light driven molecular photocathode

2021 ◽  
Author(s):  
Ryutaro Kamata ◽  
Hiromu Kumagai ◽  
Yasuomi Yamazaki ◽  
Masanobu Higashi ◽  
Ryu Abe ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Oxidation ◽  
Co2 Reduction ◽  
Turnover Number ◽  
Visible Light Driven

A durable molecular photocathode driving CO2 reduction with over 1200 of turnover number was developed by electropolymerization of Ru(ii) complexes. The cell with a suitable photoanode enabled CO2 reduction with H2O oxidation with no bias for 24 h.

Self-supported beaded Au@Co3O4 nanowire arrays perform electrocatalytic CO2 reduction in water to syngas and water oxidation to O2

2020 ◽  
Vol 44 (27) ◽  
pp. 11808-11816
Author(s):  
Shi-Yuan Zhang ◽  
Jing-Jing Ma ◽  
Hong-Lin Zhu ◽  
Yue-Qing Zheng
Keyword(s):  
Electrochemical Performance ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Co2 Reduction ◽  
Nanowire Arrays ◽  
Bifunctional Electrocatalyst ◽  
And Function

Beaded Au@Co3O4 nanowire arrays were prepared and function as a bifunctional electrocatalyst with outstanding electrochemical performance in producing syngas and the oxygen evolution reaction.

scholarly journals Recent Advances in TiO2-Based Heterojunctions for Photocatalytic CO2 Reduction With Water Oxidation: A Review

2021 ◽  
Vol 9 ◽  
Author(s):  
Kai Li ◽  
Chao Teng ◽  
Shuang Wang ◽  
Qianhao Min
Keyword(s):  
Water Oxidation ◽  
Rational Design ◽  
Photocatalytic Performance ◽  
High Efficiency ◽  
Low Cost ◽  
Spectral Response ◽  
Co2 Reduction ◽  
Environmental Crisis ◽  
Ultraviolet Region ◽  
Recent Advances

Photocatalytic conversion of CO2 into solar fuels has gained increasing attention due to its great potential for alleviating the energy and environmental crisis at the same time. The low-cost TiO2 with suitable band structure and high resistibility to light corrosion has proven to be very promising for photoreduction of CO2 using water as the source of electrons and protons. However, the narrow spectral response range (ultraviolet region only) as well as the rapid recombination of photo-induced electron-hole pairs within pristine TiO2 results in the low utilization of solar energy and limited photocatalytic efficiency. Besides, its low selectivity toward photoreduction products of CO2 should also be improved. Combination of TiO2 with other photoelectric active materials, such as metal oxide/sulfide semiconductors, metal nanoparticles and carbon-based nanostructures, for the construction of well-defined heterostructures can enhance the quantum efficiency significantly by promoting visible light adsorption, facilitating charge transfer and suppressing the recombination of charge carriers, resulting in the enhanced photocatalytic performance of the composite photocatalytic system. In addition, the adsorption and activation of CO2 on these heterojunctions are also promoted, therefore enhancing the turnover frequency (TOF) of CO2 molecules, so as to the improved selectivity of photoreduction products. This review focus on the recent advances of photocatalytic CO2 reduction via TiO2-based heterojunctions with water oxidation. The rational design, fabrication, photocatalytic performance and CO2 photoreduction mechanisms of typical TiO2-based heterojunctions, including semiconductor-semiconductor (S-S), semiconductor-metal (S-M), semiconductor-carbon group (S-C) and multicomponent heterojunction are reviewed and discussed. Moreover, the TiO2-based phase heterojunction and facet heterojunction are also summarized and analyzed. In the end, the current challenges and future prospects of the TiO2-based heterostructures for photoreduction of CO2 with high efficiency, even for practical application are discussed.

scholarly journals Electrochemical Nitric Oxide Reduction on Metal Surfaces

2021 ◽  
Author(s):  
Hao Wan ◽  
Alexander Bagger ◽  
Jan Rossmeisl
Keyword(s):  
Nitric Oxide ◽  
Metal Surfaces ◽  
Co2 Reduction ◽  
Product Distribution ◽  
Future Research ◽  
Oxide Reduction ◽  
Promising Technology ◽  
Nitric Oxide Reduction ◽  
Nh3 Formation

<div>Electrocatalytic denitrifification is a promising technology for removing NOx species (NO3<sup>−</sup>, NO2<sup>− </sup>and NO). For NO<sub>x</sub> electroreduction (NOxRR), there is a desire for understanding the catalytic parameters that control the product distribution. Here, we elucidate selectivity and activity of catalyst for NO<sub>x</sub>RR. At low potential we classify metals by the binding of ∗NO versus ∗H. Analogous to classifying CO2 reduction by ∗CO vs ∗H, Cu is able to bind ∗NO while not binding ∗H giving rise to a selective NH3 formation. Besides being selective, Cu is active for the reaction found by an activity-volcano. For metals that does not bind NO the reaction stops at NO, similar to CO<sub>2</sub>-to-CO. At potential above 0.3 V vs RHE, we speculate a low barrier for N coupling with NO causing N<sub>2</sub>O formation. The work provide a clear strategy for selectivity and aims to inspire future research on NO<sub>x</sub>RR.</div>

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