Results 41 to 50 of about 243,204 (175)

Size, alloy and interface effects on Cu-based catalysts for enhancing electrochemical reduction of CO2

open access: yesResults in Engineering, 2023
The electrochemical reduction of CO2 (CO2RR) is a significant pathway for converting CO2 into valuable fuels and promoting the sustainability of energy and environment.
Fei Guo, Guanjie He
doaj   +1 more source

125th anniversary review: fuel alcohol: current production and future challenges [PDF]

open access: yes, 2011
Global research and industrial development of liquid transportation biofuels are moving at a rapid pace. This is mainly due to the significant roles played by biofuels in decarbonising our future energy needs, since they act to mitigate the deleterious ...
Walker, Graeme M.
core   +3 more sources

Energy and Economic Costs of Chemical Storage

open access: yesFrontiers in Mechanical Engineering, 2020
The necessity of neutralizing the increase of the temperature of the atmosphere by the reduction of greenhouse gas emissions, in particular carbon dioxide (CO2), as well as replacing fossil fuels, leads to a necessary energy transition that is already ...
Véronique Dias   +5 more
doaj   +1 more source

Minimising carbon emissions and energy expended for the New Zealand transport sector through to 2050 [PDF]

open access: yes, 2014
Carbon Emissions Pinch Analysis (CEPA) and Energy Return on Energy Investment (EROI) analysis are combined to investigate the feasibility of New Zealand (NZ) reaching a 1990 emission levels for transport in 2050.
Atkins, Martin John   +5 more
core   +1 more source

Optimizing wavelet neural networks using modified cuckoo search for multi-step ahead chaotic time series prediction [PDF]

open access: yes, 2019
Determining the optimal number of hidden nodes and their proper initial locations are essentially crucial before the wavelet neural networks (WNNs) start their learning process.
Huda A. Majid   +6 more
core   +1 more source

Air traffic growth jeopardises European aviation’s climate mitigation efforts despite the substantial potential of hydrogen

open access: yesCommunications Earth & Environment
The European Union recently adopted ReFuelEU Aviation as a regulation to stimulate the use of alternative aviation fuels. We explore how this affects the climate impact of European aviation and its alignment with notions of successful climate change ...
Thomas Arblaster   +2 more
doaj   +1 more source

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

open access: yesOil & Gas Science and Technology, 2017
Climate change and global warming have become a challenging issue affecting not only humanity but also flora and fauna due to an intense increase of CO2 emission in the atmosphere which has gradually led to amplification in the average global temperature.
Tursunov Obid   +2 more
doaj   +1 more source

How to make climate-neutral aviation fly

open access: yesNature Communications, 2023
The European aviation sector must substantially reduce climate impacts to reach net-zero goals. This reduction, however, must not be limited to flight CO2 emissions since such a narrow focus leaves up to 80% of climate impacts unaccounted for.
Romain Sacchi   +6 more
doaj   +1 more source

Household-level cooking stove emissions, perceptions and influencing factors: Lessons learned from Rangunia Upazila, Chittagong, Bangladesh

open access: yesCurrent Research in Environmental Sustainability, 2022
In developing countries, connections between rural households' energy access, efficiency of cooking technologies, and relevant factors are less understood.
Tarit Kumar Baul   +3 more
doaj   +1 more source

Active site engineering for heterogeneous catalysis using emerging nano-structured materials [PDF]

open access: yes, 2016
The growing concern about the depletion of oil has spurred worldwide interest in finding alternative feedstocks for important petrochemical commodities and fuels.
Gascón, Jorge
core  

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