Results 61 to 70 of about 237,106 (303)

A review on recent developments in Zeolite A synthesis for improved carbon dioxide capture: Implications for the water-energy nexus

Energy Nexus, 2022
Carbon dioxide (CO2) emission plays a crucial role in global warming, and their capture using porous materials is a suitable approach for tackling climate change.
V. Indira, K. Abhitha
doaj   +1 more source

Ecosystems as climate controllers – biotic feedbacks (a review) [PDF]

, 2008
There is good evidence that higher global temperature will promote a rise of green house gas levels, implying a positive feedback which will increase the effect of the anthropogenic emissions on global temperatures.
Drégelyi-Kiss, G., Drégelyi-Kiss, Á., Hufnagel, Levente   +2 more
core  

Scaling and balancing carbon dioxide fluxes in a heterogeneous tundra ecosystem of the Lena River Delta

, 2019
The current assessments of the carbon turnover in the Arctic tundra are subject to large uncertainties. This problem can (inter alia) be ascribed to both the general shortage of flux data from the vast and sparsely inhabited Arctic region, as well as the
Göckede, M., Holl, D., Kutzbach, L., Rößger, N., Wille, C.   +4 more
core   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Carbon dioxide uptakes by acetylene by-products through gas–solid and gas–solid–liquid reactions

Energy Reports, 2021
In this work, carbon dioxide uptake value by acetylene by-products was evaluated through two types of carbonation reactions. In the first reaction, solid acetylene by-products were reacted with a simulated effluent CO2 gas (10% CO2 and 90% air) and the ...
Maisa El Gamal, Ameera Mohammad, Suhaib Hameedi, Hadeel AlZawahreh   +3 more
doaj   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source

Elevated carbon dioxide does not increase macroalgal community photosynthesis

Communications Earth & Environment
Ocean acidification, driven by rising atmospheric carbon dioxide levels, has impacts on marine ecosystems. While elevated carbon dioxide concentrations have the potential to enhance Blue Carbon fixation and storage, the response of community ...
Shigeki Wada, Shingo Kurosawa, Sylvain Agostini, Ben P. Harvey, Yuhi Satoh, Marco Milazzo, Jason M. Hall-Spencer   +6 more
doaj   +1 more source

Boreal forest CO2 exchange and evapotranspiration predicted by nine ecosystem process models: Intermodel comparisons and relationships to field measurements [PDF]

, 2001
Nine ecosystem process models were used to predict CO2 and water vapor exchanges by a 150-year-old black spruce forest in central Canada during 1994–1996 to evaluate and improve the models.
Amthor, Jeffrey S, Chen, J M, Clein, Joy S, Frolking, Steve, Goulden, M L, Grant, Robert F, Kimball, John, King, A W, McGuire, A D, Nikolov, Ned T, Potter, Christopher S, Wang, S, Wofsy, Steven C   +12 more
core   +2 more sources

Carbon Dioxide Uptake in Demolished and Crushed Concrete

Journal of Advanced Concrete Technology, 2011
One of the largest contributors of the greenhouse gas emission is the production of cement for use in concrete. However, concrete is well-known for its carbon dioxide (CO2) uptake by carbonation. The purpose of this study was to consider the CO2 uptake in demolished and crushed concrete. In this study, three kinds of experiments and survey were carried
Toshifumi Kikuchi, Yasuhiro Kuroda
openaire   +2 more sources

Self‐supportive Three‐Way Photoelectrochemical System Achieving Uranium Recycling, Organic Oxidation, and Electricity Generation in Complex Waters

Advanced Functional Materials, EarlyView.
A self‐sustaining solar photoelectrochemical cell (SS‐PEC) is developed to recover uranium from aqueous UO22+ with concurrent organic oxidation and electricity production. The monolithical photoanode directly captures electrons from organic compounds, leading to the oxidation of organic compounds and the decomposition of uranium‐organic complexes ...
Yumei Wang, Qingming Zeng, Haodong Ji, Rongzhong Wang, Jiachen Wang, Yanjun Wen, Wonyong Choi, Qingyi Zeng   +7 more
wiley   +1 more source