Second-Sphere Hydrogen-Bonding Enhances Heterogeneous Electrocatalytic CO2 to CO Reduction by Iron Porphyrin in water

2021 ◽  
Author(s):  
Ally Aukauloo ◽  
Chanjuan Zhang ◽  
Diana Dragoe ◽  
François Brisset ◽  
Bernard Boitrel ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Bonding ◽  
Selective Reduction ◽  
Molecular Complexes ◽  
Cost Effective ◽  
Iron Porphyrin ◽  
Carbon Dioxide Co2 ◽  
Co Reduction

Intense efforts are currently being injected in discovering cost-effective catalysts for the selective reduction of carbon dioxide (CO2). Much advances have indeed been realized in the design of molecular complexes...

Recent Advances in the Incorporation of CO2 for C-H and C-C bond Functionalization

2021 ◽  
Author(s):  
Sandeep Pimparkar ◽  
Aishwarya K. Dalvi ◽  
Adithyaraj Koodan ◽  
Siddhartha Maiti ◽  
Shaeel Al-Thabaiti ◽  
...  
Keyword(s):  
Organic Chemistry ◽  
Carbon Dioxide ◽  
Thermodynamic Stability ◽  
Cost Effective ◽  
Bond Functionalization ◽  
Synthetic Organic Chemistry ◽  
Recent Advances ◽  
Carbon Dioxide Co2

Carbon dioxide (CO2) has emerged as one of the exciting cost-effective, abundant, and ready-to-use C1 sources in synthetic organic chemistry. However, the thermodynamic stability, as well as the kinetic inertness,...

scholarly journals Local ionic liquid environment at a modified iron porphyrin catalyst enhances the electrocatalytic performance of CO2 to CO reduction in water

2018 ◽  
Vol 54 (82) ◽  
pp. 11630-11633 ◽  
Author(s):  
Asma Khadhraoui ◽  
Philipp Gotico ◽  
Bernard Boitrel ◽  
Winfried Leibl ◽  
Zakaria Halime ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Selective Reduction ◽  
Iron Porphyrin ◽  
Liquid Environment ◽  
Electrocatalytic Performance ◽  
Proton Source ◽  
Co Reduction

In this study we report a strategy to attach methylimidazolium fragments as ionic liquid units on an established iron porphyrin catalyst for the selective reduction of CO2 to CO in water, precluding the need for external proton source.

scholarly journals COCAP: a carbon dioxide analyser for small unmanned aircraft systems

2018 ◽  
Vol 11 (3) ◽  
pp. 1833-1849 ◽  
Author(s):  
Martin Kunz ◽  
Jost V. Lavric ◽  
Christoph Gerbig ◽  
Pieter Tans ◽  
Don Neff ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Cost Effective ◽  
Unmanned Aircraft ◽  
Unmanned Aircraft Systems ◽  
Temperature Changes ◽  
Co2 Sensor ◽  
Aircraft Systems ◽  
Gas Measurements ◽  
Carbon Dioxide Co2 ◽  
Atmospheric Trace Gas

Abstract. Unmanned aircraft systems (UASs) could provide a cost-effective way to close gaps in the observation of the carbon cycle, provided that small yet accurate analysers are available. We have developed a COmpact Carbon dioxide analyser for Airborne Platforms (COCAP). The accuracy of COCAP's carbon dioxide (CO2) measurements is ensured by calibration in an environmental chamber, regular calibration in the field and by chemical drying of sampled air. In addition, the package contains a lightweight thermal stabilisation system that reduces the influence of ambient temperature changes on the CO2 sensor by 2 orders of magnitude. During validation of COCAP's CO2 measurements in simulated and real flights we found a measurement error of 1.2 µmol mol−1 or better with no indication of bias. COCAP is a self-contained package that has proven well suited for the operation on board small UASs. Besides carbon dioxide dry air mole fraction it also measures air temperature, humidity and pressure. We describe the measurement system and our calibration strategy in detail to support others in tapping the potential of UASs for atmospheric trace gas measurements.

Maintenance of retained carbon dioxide and its task-oriented usage

2021 ◽  
pp. 54-57
Author(s):  
F.N. Kerimov ◽  
◽  
F.A. Kuliyev ◽  
F.Z. Bayramova ◽  
L.M. Shikhiyeva ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Oil Recovery ◽  
Carbon Dioxide Emissions ◽  
Negative Impact ◽  
Cost Effective ◽  
Industrial Enterprises ◽  
Carbon Dioxide Co2 ◽  
Task Oriented ◽  
Utilization Of Wastes

The research works justify negative impact of carbon dioxide (CO2), released into the atmosphere due to the burning of natural methane (CH4) used as a fuel in some large industrial enterprises of Azerbaijan and the ways of its task-oriented and cost-effective usage, particularly, in methanol, carbamide fertilisers production, which is top priority for Azerbaijan and in oil recovery increase of depleted reservoirs as well. The sources of large carbon dioxide emissions into the air in Azerbaijan have been revealed, the volume of burnt hydrocarbons and waste amount calculated as well. As a major investigation object, the methods of centralized gathering, transportation and utilization of wastes from the sources on the territory have been studied.

scholarly journals COCAP: A carbon dioxide analyser for small unmanned aircraft systems

2017 ◽  
Author(s):  
Martin Kunz ◽  
Jost V. Lavric ◽  
Christoph Gerbig ◽  
Pieter Tans ◽  
Don Neff ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Cost Effective ◽  
Unmanned Aircraft ◽  
Unmanned Aerial Systems ◽  
Temperature Changes ◽  
Co2 Sensor ◽  
Gas Measurements ◽  
Carbon Dioxide Co2 ◽  
Aerial Systems ◽  
Atmospheric Trace Gas

Abstract. Abstract Unmanned aerial systems (UAS) could provide a cost-effective way to close gaps in the observation of the carbon cycle, provided that small yet accurate analysers are available. We have developed a COmpact Carbon dioxide analyser for Airborne Platforms (COCAP). The accuracy of COCAP's carbon dioxide (CO2) measurements is ensured by calibration in an environmental chamber, regular calibration in the field and by chemical drying of sampled air. In addition, the package contains a lightweight thermal stabilisation system that reduces the influence of ambient temperature changes on the CO2 sensor by two orders of magnitude. During validation of COCAP's CO2 measurements in simulated and real flights we found a measurement error of 1.2 μmol mol−1 or better with no indication of bias. COCAP is a self-contained package that has proven well suited for the operation on board small UAS. Besides carbon dioxide dry air mole fraction it also measures air temperature, humidity and pressure. We describe the measurement system and our calibration strategy in detail to support others in tapping the potential of UAS for atmospheric trace gas measurements.

PERANCANGAN PROTEKSI KEBAKARAN OTOMATIS PADA KAPAL BERBASIS ARDUINO

2018 ◽  
Vol 1 (2) ◽  
pp. 1-8
Author(s):  
Dody Hidayat
Keyword(s):  
Carbon Dioxide ◽  
Fire Extinguisher ◽  
Carbon Dioxide Co2

Kebakaran dapat terjadi dimana saja salah satunya dapat terjadi di alat transportasi air yakni kapal. Kebakaran selalu menyebabkan hal-hal yang tidak diinginkan baik kerugian material maupun ancaman keselamatan jiwa manusia. Seiring dari kejadian tersebut musibah kecelakaan kapal yang disebabkan oleh bahaya kebakaran sangatlah mungkin terjadi. Salah satu yang dapat mencegah kejadian kebakaran pada kapal haruslah dapat mendeteksi dini kebakaran tersebut. Untuk mendeteksi dini terjadinya kebakaran dikapal maka dirancanglah sebuah alat proteksi kebakaran otomatisberbasis adruino. Dimana Arduino merupakan board yang memiliki sebuah mikrokontroller sebagai  otak kendali sistem. Sistem otomatisasi atau controller tidak akan terlepas dengan apa yang disebut  dengan ‘sensor’. Sensor adalah sebuah alat untuk mendeteksi atau mengukut sesuatu yang digunakan untuk mengubah variasi mekanis, magnetis, panas, sinar dan kimia menjadi tegangan dan arus listrik. sistem yang dirancang ini dilengkapi dengan beberapa sensor diantaranya adalah sensor apiUV-Tron R2868, sensor asap MQ-2 dan kemudian sensor suhuDS18B20. Mikrokontroller sebagai pengendali akan merespon input yang berupa sensor tersebut ketika data yang dibaca oleh sensor mendeteksikebakaran diantaranya mendeteksi adanya asap, kemudian api dan suhu. Sebagai output dari sistem berupa racun api (fire extinguisher)dimana kandungan yang ada pada racun api tersebut berupa Dry Chemical Powder dan Carbon Dioxide (CO2) yang fungsinya digunakan untuk memadamkan api serta dilengkapi buzzer sebagai alarm peringatan jika terjadi kebakaran. 

The Prenatal Development Effects of Carbon Dioxide (CO2) Exposure in Rats (Rattus Norvegicus)

2012 ◽  
Author(s):  
William R. Howard ◽  
Brian Wong ◽  
Michelle Okolica ◽  
Kimberly S. Bynum ◽  
R. A. James
Keyword(s):  
Carbon Dioxide ◽  
Rattus Norvegicus ◽  
Prenatal Development ◽  
Carbon Dioxide Co2
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