scholarly journals Estimation of carbon dioxide (CO2) reduction by utilization of algal biomass bioplastic in Malaysia using carbon emission pinch analysis (CEPA)

Bioengineered ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 154-164 ◽  
Author(s):  
Nor-Insyirah Syahira Abdul-Latif ◽  
Mei Yin Ong ◽  
Saifuddin Nomanbhay ◽  
Bello Salman ◽  
Pau Loke Show
Keyword(s):  
Carbon Dioxide ◽  
Algal Biomass ◽  
Carbon Emission ◽  
Co2 Reduction ◽  
Pinch Analysis ◽  
Carbon Dioxide Co2

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,...

Low Full‐Cell Voltage Driven High‐Current‐Density Selective Paired Formate Electrosynthesis

2021 ◽  
Author(s):  
Chuqian Xiao ◽  
Ling Cheng ◽  
Yating Wang ◽  
Jinze Liu ◽  
Rongzhen Chen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Current Density ◽  
Co2 Reduction ◽  
Value Added ◽  
Cell Voltage ◽  
High Current ◽  
Oxidation Of Methanol ◽  
Promising Strategy ◽  
Electro Oxidation ◽  
Carbon Dioxide Co2

Anodic selective electro‐oxidation of methanol paring with cathodic carbon dioxide (CO2) reduction is regarded as a promising strategy to generate value added formate product. We firstly design a 3D‐assembled NiCo...

scholarly journals Extreme droughts drive tropical semi-arid eutrophic reservoirs towards CO2 sub-saturation

2018 ◽  
Vol 30 (0) ◽  
Author(s):  
Jurandir Rodrigues de Mendonça Júnior ◽  
André Megali Amado ◽  
Luciana de Oliveira Vidal ◽  
Arthur Mattos ◽  
Vanessa Becker
Keyword(s):  
Carbon Dioxide ◽  
Water Level ◽  
Chlorophyll A ◽  
Co2 Reduction ◽  
Water Volume ◽  
Drought Period ◽  
Autotrophic Metabolism ◽  
Semi Arid Region ◽  
Carbon Dioxide Co2 ◽  
Semi Arid

Abstract Aim: This study aimed to evaluate the carbon dioxide (CO2) dynamics in tropical semi-arid reservoirs during a prolonged drought period as well as to test if the trophic state affects the CO2 saturation. Methods This study was performed in four reservoirs located in the tropical semi-arid region in the northeast of Brazil. All samplings were performed between 9 and 12 am using a Van Dorn Bottle. Samples for partial pressure of carbon dioxide (pCO2 ) measurements were taken in the sub-surface as well as samples for total phosphorus and chlorophyll-a. Correlation analysis and linear regression were used to detect relations among the calculated pCO2, water volume and chlorophyll-a. Results The water level reduction due to atypical droughts caused chlorophyll-a concentrations to increase, which in turn, led to CO2 reduction in the water. However, CO2 concentrations were very variable and an alternation between CO2 sub-saturation and super-saturation conditions was observed. This paper showed that water volume and chlorophyll-a were important regulators of CO2 in the water, as well as important carbon balance predictors in the tropical semiarid reservoirs. Conclusions The results of this paper indicate that the eutrophication allied to drastic water level reductions lead to a tendency of autotrophic metabolism of these systems.

C3 Production from CO2 Reduction by Concerted *CO Trimerization on Single Atom Catalyst

2022 ◽  
Author(s):  
Ling Chen ◽  
Cheng Tang ◽  
Yao Zheng ◽  
Egill Skúlason ◽  
Yan Jiao
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Co2 Reduction ◽  
Single Atom ◽  
Carbon Dioxide Co2

The direct electroreduction of carbon dioxide (CO2) and carbon monoxide (CO) to C3 products is challenging. The main reason is the competitive C2 production resulting from a traditional sequential C–C...

Electrochemical CO2 Reduction to Ethanol: From Mechanistic Understanding to Catalyst Design

2021 ◽  
Author(s):  
Tu Ngoc Nguyen ◽  
Jiaxun Guo ◽  
Ashwini Sachindran ◽  
Fengwang Li ◽  
Ali Seifitokaldani ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas ◽  
Electrochemical Reduction ◽  
Co2 Reduction ◽  
Catalyst Design ◽  
Greenhouse Gas Mitigation ◽  
Electrochemical Co2 Reduction ◽  
Mechanistic Understanding ◽  
Carbon Dioxide Co2

The electrochemical reduction of carbon dioxide (CO2) to chemicals is gaining great attention as a pragmatic solution for greenhouse gas mitigation and for the utilization of CO2 to produce useful...

scholarly journals Stabilization Effects in Binary Colloidal Cu and Ag Nanoparticle Electrodes under Electrochemical CO2 Reduction Conditions

Nanoscale ◽  
2021 ◽  
Author(s):  
Longfei Wu ◽  
Kees Kolmeijer ◽  
Yue Zhang ◽  
Hongyu An ◽  
Sven Arnouts ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Reaction ◽  
Co2 Reduction ◽  
Modified Electrodes ◽  
Ag Nanoparticle ◽  
Reaction Conditions ◽  
Electrochemical Co2 Reduction ◽  
Carbon Dioxide Co2 ◽  
Reduction Catalysts ◽  
Sintering Processes

Nanoparticle modified electrodes constitute an attractive way to tailor-make efficient carbon dioxide (CO2) reduction catalysts. However, the restructuring and sintering processes of nanoparticles under electrochemical reaction conditions not only impedes...

scholarly journals Generation of Fuel and Value-Added Chemicals from Carbon Dioxide (CO2)

2020 ◽  
Vol 12 (01) ◽  
pp. 41-44
Author(s):  
Pooja Srivastava
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
Co2 Reduction ◽  
Value Added ◽  
Reduction Reaction ◽  
Long Term Effects ◽  
Industrial Chemicals ◽  
Continuous Increase ◽  
Carbon Dioxide Co2 ◽  
Co2 Reduction Reaction

Despite its life-threatening long term effects, the continuous increase of carbon dioxide (CO2) in the environment requires immediate actions to control the accelerating climate change. An appealing solution to this problem is to utilize CO2 as feedstock to generate useful chemicals, e.g., fuel, hydrocarbons, and valuable chemicals. The chemical inertness of CO2 needs considerably large energy for its conversion into useful chemicals. Therefore, CO2 reduction reaction requires an effective catalyst for its conversion into fuel (methanol, methane) and industrial chemicals (syngas, formic acid). Recently, two-dimensional layers of early transition metal carbides and nitrides, called MXene, have shown potential for catalysis due to its exposed transition metal sites, and mechanical and chemical stability at high temperatures. Herein, the author presents the MXene as a potential heterogeneous catalyst for the CO2 reduction reaction (CRR), and the future scope in this currently developing field.

scholarly journals Design and Development of a Carbon Footprint Calculation Model for Universiti Tenaga Nasional

2019 ◽  
Vol 8 (4) ◽  
pp. 6236-6239
Keyword(s):  
Carbon Dioxide ◽  
Carbon Footprint ◽  
Carbon Dioxide Emission ◽  
Co2 Reduction ◽  
Calculation Model ◽  
Emission Sources ◽  
Global Awareness ◽  
Literature Reviews ◽  
Carbon Dioxide Co2 ◽  
College Of Engineering

Carbon footprint is the amount of a greenhouse gas (GHG) produced as a result of human activities, usually expressed in equivalent kilograms of carbon dioxide (CO2). As the amount of greenhouse gases emission increases, the global temperature increases. In the context of a global awareness of the climate change, carbon footprint has recently become extensively calculated and ways to reduce it are proposed. The purpose of this research is to calculate the amount of carbon footprint discharged by students in College of Engineering (COE), Universiti Tenaga Nasional (UNITEN). From this research a model to calculate the carbon dioxide emission released from the activities done by the COE students particularly, is developed. Literature reviews are done leading to an explanation of what emission categories should be presented in a CO2 calculation for a university. This includes emission sources in each buildings, activities and services in COE particularly. Conducting survey is one of the methods to get the data from the students and staffs directly. From this data, the calculation is done and tabulated in the Excel template. From this template model, the carbon footprint for each or total students of COE can be known. Referring to this data, CO2 reduction strategy in COE particularly and UNITEN generally can be proposed.

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