Catalysts derived from earth-abundant natural biomass enable efficient photocatalytic CO2 conversion for achieving a closed-loop carbon cycle

2021 ◽  
Author(s):  
Qi-Su Huang ◽  
Wei Wei ◽  
Bing-Jie Ni
Keyword(s):  
Carbon Dioxide ◽  
Solar Energy ◽  
Carbon Cycle ◽  
Greenhouse Effect ◽  
Closed Loop ◽  
Co2 Conversion ◽  
Earth Abundant ◽  
Carbon Dioxide Co2 ◽  
Photocatalytic Co2 Conversion ◽  
Energy Shortage

Photocatalytic carbon dioxide (CO2) conversion is a promising technology to address the greenhouse effect and energy shortage problems by utilizing the inexhausted solar energy. However, the over-reliance of the metal-based...

Insights into the Development of Cu-based Photocathodes for Carbon Dioxide (CO2) Conversion

2021 ◽  
Author(s):  
Wenzhang Li ◽  
Keke Wang ◽  
yanfang Ma ◽  
Yang Liu ◽  
Weixin Qiu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Fossil Fuels ◽  
Environmental Issues ◽  
Energy Crisis ◽  
Co2 Conversion ◽  
Carbon Dioxide Co2 ◽  
Reduction Of Co2

The ever-growing factitious over-consumption of fossil fuels and the accompanying massive emissions of CO2 have caused severe energy crisis and environmental issues. Photoelectrochemical (PEC) reduction of CO2 that can combine...

Hierarchical three-dimensional copper selenide nanocubes microelectrodes for improved carbon dioxide reduction reaction

2021 ◽  
Author(s):  
Rajasekaran Elakkiya ◽  
Govindhan Maduraiveeran
Keyword(s):  
Carbon Dioxide ◽  
High Performance ◽  
Three Dimensional ◽  
Co2 Reduction ◽  
Value Added ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction ◽  
Earth Abundant ◽  
Carbon Dioxide Co2 ◽  
Co2 Reduction Reaction

Design of high-performance and Earth-abundant electrocatalysts for electrochemical carbon dioxide (CO2) reduction reaction (CO2RR) into fuels and value-added chemicals offers an emergent pathway for environment and energy sustainable concerns. Herein,...

scholarly journals The Utilization of Carbon Dioxide to Prepare TiCxOy Films with Low Friction and High Anti-Corrosion Properties

Coatings ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 533
Author(s):  
Kaixiong Gao ◽  
Zhaolong Wang ◽  
Qian Jia ◽  
Bin Zhang ◽  
Zhixing Mou ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Corrosion Resistance ◽  
Greenhouse Effect ◽  
High Hardness ◽  
Corrosion Properties ◽  
Dilute Gas ◽  
New Strategy ◽  
Co2 Recycling ◽  
Carbon Dioxide Co2 ◽  
Outstanding Question

Recycling carbon dioxide (CO2) for weakening the greenhouse effect is still an outstanding question. Although many chemical methods have been designed for CO2 conversion, they is still a need to develop new ways for CO2 recycling. Plasma methods were employed to convert CO2 into energy molecules, with the addition of H2, H2O and so on. Non heavy elements, like Ti, Cr, Si and Mo and so forth, were employed to take part in a reactive process, which might be very interesting for special scientific interest. In this work, magnetron sputtering method was used not only for igniting the plasma but also for providing Ti elements involved in reactions, via the selected Ti target. One can confirm that the TiCxOy films were successfully grew via sputtering a Ti target in CO2 atmosphere with Ar as dilute gas, which proved that CO2 is a key player in the matter of the involvement of excited CO2+, CO+, CO3− and so on, in the growth process reacting with Ti ions. The TiCxOy films exhibit the highest hardness (20.3 GPa), lowest friction coefficient (0.065) and the best corrosion resistance. The growth of the TiCxOy films are not only a new strategy for consuming CO2 but also a good way for reusing it for preparing TiCxOy films with high hardness for anti-corrosion and reducing friction. Moreover, reducing CO2 emissions via energy saving (through reducing friction and corrosion resistance) and recycling existing CO2 are both important for mitigating the greenhouse effect.

NATURE-LIKE PHOTOSYNTHESIS OF WATER AND CARBON DIOXIDE WITH FEMTOSECOND LASER INDUCED SELF-ASSEMBLED METAL NANOSTRUCTURES

2009 ◽  
Vol 23 (31) ◽  
pp. 5849-5857 ◽  
Author(s):  
CONG WANG ◽  
MENGYAN SHEN ◽  
HAIBIN HUO ◽  
HAIZHOU REN ◽  
FADONG YAN ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Solar Energy ◽  
Femtosecond Laser ◽  
Large Scale ◽  
Metal Nanostructures ◽  
Surface Enhanced ◽  
Earth Abundant ◽  
Metal Nanostructure ◽  
Nanostructure Arrays ◽  
Self Assembled

Large-scale replication of the natural process of photosynthesis is a crucial subject of storing solar energy and saving our environment. Here, we report femtosecond laser induced self-assembled metal nanostructure arrays, which are easily mass producible on earth-abundant metals, can directly synthesize liquid and solid hydrocarbon compounds from carbon dioxide, water, and sunlight at a production rate of more than 1 × 105 μ L/(gh) that is significantly (103–106 times) higher than those in previous studies.1,2 The efficiency for storing solar energy of the photosynthesis is about 10% in the present simple experimental setup which can be further improved. Moreover, different from previous artificial photosynthesis works, this phenomenon presents a new mechanism that, through a surface-enhanced photodissociation process, nature-like photosynthesis can be performed artificially.

Closed Loop Thermochemical Energy Transport Based on CO2 Reforming of Methane: Balancing the Reaction Systems

1987 ◽  
Vol 109 (3) ◽  
pp. 215-220 ◽  
Author(s):  
J. D. Fish ◽  
D. C. Hawn
Keyword(s):  
Carbon Dioxide ◽  
Solar Energy ◽  
Transport System ◽  
Closed Loop ◽  
Energy Transport ◽  
Scale Up ◽  
Transport Systems ◽  
Operational Experience ◽  
Co2 Reforming ◽  
System Pressure

The objective of the Closed Loop Efficiency Analysis (CLEA) Project at Sandia National Laboratories is to develop the data base, the calculational tools, and the operational experience necessary for the design of cost-effective energy transport systems based on reversible chemical reactions. The primary application of interest is the transport of solar energy either from the collectors of a distributed system to a central site or from a solar energy plant of any type located in an area of high solar insolation to a population or industrial center a few to several hundred kilometers away. A series of experiments and analysis have been carried out to explore the effect of catalyst selection, starting composition, reactor temperatures, system pressure, and water recycle on the operation and the efficiency of an energy transport system based on the reversible carbon dioxide reforming of methane. Both the experiments in the CLEA laboratory facility and the analyses indicate that the carbon dioxide/methane thermochemical energy transport system can be operated in a stable, closed-loop mode and that the system can be started up and shut down, as it must be daily in a solar application, without triggering either catastrophic instabilities or carbon deposition. Based on the success of the CLEA project, two new hardware projects have been initiated to address scale-up and direct solar interfacing.

scholarly journals MAKING LEARNING MEDIA FOR GREENBOX EFFECT SIMULATOR TO IMPROVE UNDERSTANDING OF THE CONCEPT OF THE GREENHOUSE EFFECT

2021 ◽  
Vol 5 (1) ◽  
pp. 11-16
Author(s):  
Noer Sarifah Ainy ◽  
Nestiyanto Hadi
Keyword(s):  
Carbon Dioxide ◽  
Global Warming ◽  
Greenhouse Gases ◽  
Air Temperature ◽  
Greenhouse Effect ◽  
Independent Variables ◽  
Carbon Dioxide Gas ◽  
The Earth ◽  
Yellow Color ◽  
Carbon Dioxide Co2

The earth is experiencing global warming due to an increase in air temperature (greenhouse effect). This is due to the large number of greenhouse gases produced by human activities. In addition, it is also due to the reduced number of plants that absorb greenhouse gases, especially carbon dioxide. This condition causes the study of the greenhouse effect to become an object studied by students at school. Understanding the greenhouse effect is somewhat difficult if only understood in theory. Increasing understanding can be done by making practicum learning media. This study aims to create learning media for the Greenbox Effect Simulator to help understand the concept of the greenhouse effect. The research was conducted using control variables and independent variables (use of plants and without plants). The plants used are Caisim, Sri Gading and Anggrek. The presence of carbon dioxide (CO2) greenhouse gases can be detected by three things, namely changes in the color of the CO2 indicator, changes in temperature, and visibility of the box. The color of the CO2 indicator shows green and green yellow for Box B (with plants) which means the concentration of CO2 in normal conditions. Whereas Box C (without plants) gives a yellow color, which means that the concentration of CO2 is at high conditions. The presence of carbon dioxide gas from combustion will increase the temperature by 1.4 - 1.9 oC in Box C (without plants) and 0.7 - 1.5 oC in Box B (use of plants). The visibility of Box B shows a higher brightness level than Box C. The best plants that can absorb CO2 concentrations are orchids. The ability of orchids to absorb CO2 is assisted by their roots which also function to carry out photosynthesis. The existence of plants functions to absorb CO2 quite well when viewed from changes in temperature, color indicators and visibility.

scholarly journals IMPLEMENTACIÓN DE UN SISTEMA FOTOVOLTÁICO EN EL DISTRITO DE SAN BORJA, PARA APROVECHAR LA ENERGÍA SOLAR DURANTE LOS MESES DE VERANO

2016 ◽  
Vol 26 (1) ◽  
pp. 115
Author(s):  
Harry A. Rivera Tito ◽  
María E. Quintana Caceda ◽  
Vanessa Teixeira Roth
Keyword(s):  
Carbon Dioxide ◽  
Solar Energy ◽  
Electric Power ◽  
Solar Power ◽  
Electrical Power ◽  
Photovoltaic System ◽  
Pv System ◽  
Carbon Dioxide Co2 ◽  
Coast Region

RESUMENEn este trabajo exponemos un método para abastecer de energía eléctrica a un grupo de personas que habitan en el distrito de San Borja – Lima, a través de un Sistema Fotovoltaico (SFV), lo cual no es común en la zona. Esto ayudará a disminuir los niveles de emisión de dióxido de carbono (CO2) a la atmósfera. Se ha determinado mediante el Atlas Solar del Perú que la potencia solar en la región de la costa alcanza al día un promedio, en el mes de marzo, de 6 a 6,5 kW.h/m2, si convertimos este dato a energía, es equivalente de 21,6 a 23,4 MJ/m2, lo cual es provechoso para el proyecto.Palabras clave- Energía solar, irradiancia, sistema fotovoltaico y energía eléctrica. ABSTRACTThrough this work we explain a method to provide electrical power to a group of people living in the district of San Borja - Lima, through a PV system, which is not common in the area. This would help to reduce emission levels of carbon dioxide (CO2) to the atmosphere. It has been determined by the Solar Atlas of Peru that the coast region solar power reaches 6 to 6,5 kW.h/m2 per day, average in the month of March, if we convert this data to energy is equivalent to 21,6 to 23,4 MJ/m2, which is of great advantage for the proyect.KeyWords.- Solar energy, irradiance, photovoltaic system and electric power.

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