Anion (O, N, C, and S) vacancies promoted photocatalytic nitrogen fixation

2019 ◽  
Vol 21 (11) ◽  
pp. 2852-2867 ◽  
Author(s):  
Chengliang Mao ◽  
Jiaxian Wang ◽  
Yunjie Zou ◽  
Hao Li ◽  
Guangming Zhan ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Solar Energy ◽  
Mild Condition ◽  
Promising Alternative ◽  
Bosch Process ◽  
Potential Use

Mild-condition nitrogen fixation using “green” solar energy, merely requiring a solar-to-NH3 (STA) efficiency of 0.1% for potential use, is a promising alternative to the Haber–Bosch process but remains a great challenge.

scholarly journals Powering the next industrial revolution: transitioning from nonrenewable energy to solar fuels via CO2 reduction

RSC Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 87-113
Author(s):  
Rami J. Batrice ◽  
John C. Gordon
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Industrial Revolution ◽  
Co2 Reduction ◽  
Solar Fuels ◽  
Chemical Bonds ◽  
Direct Production ◽  
Promising Alternative ◽  
Nonrenewable Energy

Solar energy has been used for decades for the direct production of electricity in various industries and devices. However, harnessing and storing this energy in the form of chemical bonds has emerged as a promising alternative to fossil fuels.

scholarly journals The use of solar energy for the curing of ferrogeopolymer elements in the semiarid region

2019 ◽  
Vol 276 ◽  
pp. 01031 ◽  
Author(s):  
Partogi H Simatupang ◽  
Petrus Lubalu ◽  
Herry L Sianturi ◽  
Wilhelmus Bunganaen
Keyword(s):  
Solar Energy ◽  
Low Cost ◽  
Glass Plate ◽  
Energy Resource ◽  
Semiarid Region ◽  
Collector System ◽  
Good Potential ◽  
Dry Seasons ◽  
Wire Meshes ◽  
Potential Use

Kupang City in Timor Island of Indonesia, as a semiarid area, has abundant solar energy sources. Based on climatology data of Kupang City in 2013-2015, the minimum and maximum average temperatures in Kupang City range from 19.3-34.8oC. Besides, dry seasons last for about 8 months (April-November). This abundance of solar energy is a potential energy resource for the manufacturing of environmentally friendly ferrogeopolymer elements. Based on previous research, the production of geopolymer material can be done optimally with dry curing treatment at 60-80oC for less than 48 hours. Therefore, in this paper, a low-cost, energy efficient oven operated by a solar energy collector was developed. This paper describes a feasibility study of the use of solar energy for curing ferro-geopolymer elements. The ferro-geopolymer elements made were beams with length 600 mm, width 100 mm and height 100 mm. Wire meshes with 6x6mm of opening were used in 5 layers. The solar energy collector system used as an oven was a zinc coated drum which was painted black outwardly and was covered by a glass plate. Using this oven, it was possible to increase the ambient temperature by 1.62 to 2,37 times. Furthermore, this oven can also increase the flexure strength of ferrogeopolymer elements about ± 25.34%. This paper shows good potential use of solar energy in the manufacturing of ferro-geopolymer elements in the semiarid region.

Plasmonic Gold Nanocrystals Stimulated Efficiently Photocatalytic Nitrogen Fixation over Mo Doped W18O49 nanowires

2021 ◽  
Author(s):  
Peng Qiu ◽  
Cong Huang ◽  
Gang Dong ◽  
Feiyang Chen ◽  
Feifan Zhao ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Gold Nanocrystals ◽  
Bosch Process ◽  
Potential Alternative ◽  
Nitrogen Conversion

Photocatalytic nitrogen fixation is a desirable approach to future sustainable nitrogen conversion and might consider as a potential alternative to the traditional Haber-Bosch process. However, the activation of nitrogen molecules...

Haeckelite Phosphorous: An Emerging 2D Allotrope of Phosphorous for Potential Use in LIBs/SIBs

2021 ◽  
Author(s):  
Gayatree Barik ◽  
Sourav Pal
Keyword(s):  
2D Materials ◽  
Essential Feature ◽  
Volume Ratio ◽  
Promising Alternative ◽  
Materials Used ◽  
Potential Use

A large surface-to-volume ratio is an essential feature of 2D materials used in many potential electronic applications. This work proposed that the Haeckelite structured phosphorous can be another promising alternative...

scholarly journals SELECTION OF HERBICIDES TARGETING THE USE IN CROP SYSTEMS CULTIVATED WITH SHOWY CROTALARIA

2015 ◽  
Vol 33 (3) ◽  
pp. 521-534 ◽  
Author(s):  
G. B. P BRAZ ◽  
R. S OLIVEIRA JR ◽  
J. CONSTANTIN ◽  
H. K. TAKANO ◽  
C. A. CHASE ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Chemical Control ◽  
Clayey Soil ◽  
Chlorimuron Ethyl ◽  
High Production ◽  
Low Levels ◽  
Postemergence Herbicides ◽  
Potential Use ◽  
Selection Of

ABSTRACT The increase in the area planted with Crotalaria spectabilishas occurred by several factors, highlighting the potential to reduce the nematodes, nitrogen fixation and the high production of biomass. By becoming a species sown as a crop, it is necessary to control the weeds that coexist with showy crotalaria. This change in the use of this crop creates the possibility of this specie becoming a weed. The aim of this study was to assess the potential use of herbicides applied in preemergence and postemergence of C.spectabilisfor different purposes (control of volunteer and selectivity plants). Three experiments were installed in a greenhouse (two with herbicides applied in preemergence - in soils with distinct textural categories; and one experiment with herbicides applied in postemergence). The results of the experiments with herbicides applied in preemergence showed that: amicarbazone, atrazine, diuron, metribuzin, prometryn, fomesafen and sulfentrazone showed effectiveness for control of C.spectabilis in clayey soil. Besides these, flumioxazin and isoxaflutole also showed potential to be used in the control of showy crotalaria in soils with loam texture. In relation to the postemergence herbicides, atrazine, diuron, prometryn, flumioxazin, fomesafen, lactofen, saflufenacil, amonio-glufosinate and glyphosate can be used aiming the chemical control of C.spectabilis. Herbicides chlorimuron-ethyl, diclosulan, imazethapyr, pyrithiobac-sodium, trifloxysulfuron-sodium, clomazone, pendimethalin, S-metolachlor and trifluralin applied in preemergence, and imazethapyr, pyrithiobac-sodium, flumiclorac, bentazon and clethodim applied in postemergence caused low levels of injury to C.spectabilis plants, making necessary the development of new searches to ensure the selectivity of these products.

NiMoOx as a Highly Protective layer against Photocorrosion for Solar Seawater Splitting

2022 ◽  
Author(s):  
Xiaotian Guo ◽  
Xianhu Liu ◽  
Lei Wang
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Large Scale ◽  
Surface Reaction ◽  
Protective Layer ◽  
Reaction Dynamics ◽  
Solar Energy Conversion ◽  
Promising Alternative ◽  
Energy Conversion And Storage ◽  
And Storage

Photoelectrochemical (PEC) seawater splitting is a promising alternative for solar energy conversion and storage. However, the sluggish surface reaction dynamics and photocorrosion/corrosion generally limit the semiconductors for potential large-scale application....

Feasibility of Usage Possibility in Turkey of Solar Driven Ejector-Absorption Cooling System

Solar Energy ◽  
2004 ◽  
Author(s):  
Adnan So¨zen ◽  
H. Serdar Yu¨cesu
Keyword(s):  
Solar Energy ◽  
Cooling System ◽  
Sunshine Duration ◽  
Meteorological Data ◽  
Minimum Energy ◽  
Montreal Protocol ◽  
Coefficient Of Performance ◽  
Promising Alternative ◽  
Absorption Cooling ◽  
Yearly Average

It appears that solar assisted refrigeration systems are a promising alternative to the conventional electrical driven units. Their main advantages are the reduction of peak loads for electricity utilities, the use of zero ozone depletion impact refrigerants, the decreased primary energy consumption, and decreased global warming impact. In this study, we have investigated the possibility of using ejector-absorption cooling systems (EACS) in Turkey. In addition, this study determines whether or not required heat for generator of EACS can be obtained from solar energy in Turkey. There are two important reasons to explain the use of EACS in Turkey. One is that the production and use of the CFCs and HCFCs will be phased out according to Montreal Protocol. The second is that, in Turkey, solar energy potential is very high due to its location in the northern hemisphere with latitudes 36–42°N and longitudes 26–45°E, the yearly average solar radiation is 3.6 kWh/m2 day, and the total yearly radiation period is ∼2610 h. The radiation data and sunshine duration information collected since 2000 for 17 cities are used for analysis in different regions of Turkey. For maximum coefficient of performance (COPmax) conditions of EACSs operated with aqua-ammonia, it is found that required optimum collector surface area was defined by using the meteorological data. In addition since the system can be used throughout the year, required minimum energy for auxiliary heater was also calculated. It is shown that the heat gain factor (HGF) varies in the range from 0.5 to 2.68 for the all the seasons in the selected cities. The maximum HGF is 2.68 for Van in July. This study shows that there is a great potential for utilisation of solar cooling system for domestic heating/cooling applications in Turkey.

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