Results 31 to 40 of about 1,112,829 (215)

Assisting effect of Al2O3 on MnOx for NO catalytic oxidation

open access: yesGreen Energy & Environment, 2021
Various Mn-based catalysts for NO oxidation were prepared using MnOx as active compound, while TiO2 and Al2O3 were adopted as catalyst support. The performance of the catalysts was tested to study the effect of support on Mn-based catalyst activity ...
Denghui Wang   +4 more
doaj   +1 more source

The appeal of the good life: strategies for communicating sufficiency practices and policies

open access: yesSustainability: Science, Practice, & Policy
This article examines how sufficiency, an approach to sustainability focused on reducing resource consumption, can be communicated as a pathway to a good life rather than a call to sacrifice. Based on a representative survey in Germany, the findings show
Andrea Amri-Henkel   +7 more
doaj   +1 more source

A thermodynamic assessment of working fluids in ORC systems [PDF]

open access: yesEPJ Web of Conferences, 2019
ORC (Organic Rankine Cycle) is widely used to convert low temperature heat into electricity using organic working fluid. The performance of an ORC installation is influenced deeply by selected working fluid and operation conditions.
Matuszewska Dominika   +2 more
doaj   +1 more source

Modelling tidal energy extraction in a depth-averaged coastal domain [PDF]

open access: yes, 2010
An extension of actuator disc theory is used to describe the properties of a tidal energy device, or row of tidal energy devices, within a depth-averaged numerical model This approach allows a direct link to be made between an actual tidal device and its
M.L.G. Oldfield   +12 more
core   +1 more source

Utilization of milli-scale coiled flow inverter in combination with phase separator for continuous flow liquid-liquid extraction processes [PDF]

open access: yes, 2016
Process-design intensification situated under the umbrella of Novel Process Windows heads for process integration and here most development is needed for flow separators. The vision is to achieve multi-step synthesis in flow on pilot scale.
Noël, Timothy   +24 more
core   +1 more source

Nanoscale greenhouse effect for promoting solar-driven CO2 reduction with water to CH4

open access: yesNature Communications
Improvement of solar-to-chemical energy conversion in photocatalytic CO2 reduction remains fundamentally constrained by insufficient utilization of solar energy, particularly low-energy photons.
Xiaofeng Kang   +8 more
doaj   +1 more source

Near-infrared driven semiconductor-based photocatalysis for energy and environmental applications: mechanisms, materials, and devices [PDF]

open access: yesEES Catalysis
Solar-driven semiconductor-based photocatalysis for fuel production and environmental protection has emerged as a promising approach to alleviate the global energy and environmental crises.
Zhiqing Wang   +6 more
doaj   +1 more source

Energy flow and the organization of life [PDF]

open access: yesComplexity, 2007
AbstractUnderstanding the emergence and robustness of life requires accounting for both chemical specificity and statistical generality. We argue that the reverse of a common observation—that life requires a source of free energy to persist—provides an appropriate principle to understand the emergence, organization, and persistence of life on earth ...
Harold J. Morowitz, Eric Smith
openaire   +1 more source

Decoupled electrolysis for hydrogen production and hydrazine oxidation via high-capacity and stable pre-protonated vanadium hexacyanoferrate

open access: yesNature Communications
Decoupled electrolysis for hydrogen production with the aid of a redox mediator enables two half-reactions operating at different rates, time, and spaces, which offers great flexibility in operation.
Fei Lv   +7 more
doaj   +1 more source

Band Engineering Induced by Sulphur Vacancies in MoS2/g-C3N4 or Selective CO2 Photoreduction to CH3OH

open access: yesNanomaterials
Developing photocatalysts with both high efficiency and reaction pathway selectivity is essential for achieving efficient and sustainable CO2 conversion.
Shicheng Liu   +4 more
doaj   +1 more source

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