Results 161 to 170 of about 691,706 (351)

The Effect of Pore Functionality in Multicomponent Covalent Organic Frameworks on Stable Long‐Term Photocatalytic H2 Production

open access: yesAdvanced Energy Materials, EarlyView.
Five COFs are synthesized through a multicomponent reaction, preserving a similar backbone while introducing varying pore functionalities. All COFs demonstrate excellent chemical stability and sustained H2 production under sunlight for 7‐15 days. The imidazole‐functionalized COF exhibits the highest H2 production, which can be attributed to its high ...
Prasenjit Das   +18 more
wiley   +1 more source

Incorporating economic multipliers in a bid adjustment algorithm for public food procurement decision making

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract We present an adjusted bid price mechanism that incorporates economic multiplier effects in public food procurement decision making. Under Input–Output model assumptions, the algorithm estimates enhanced tax revenues to state governments through multiplier effects associated with in‐state supplier purchasing.
Todd M. Schmit, Xiaoyan Liu
wiley   +1 more source

Dynamic changes in the structure and concentration of the international grain and oilseed trading industry

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract This paper aims to describe the evolution of firm and industry strategies and to analyze detailed transaction data on the structure of the international grain trading industry. Specifically, data are developed from vessel nominations, and these were used to derive measures of concentration and determine how these change across selected ...
William W. Wilson   +2 more
wiley   +1 more source

The potato,

open access: yes, 1917
Arthur Witter Gilbert   +2 more
openaire   +3 more sources

Biomass‐Derived Metal‐Free Nanostructured Carbon Electrocatalysts for High‐Performance Rechargeable Zinc–Air Batteries

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The study discusses synthesis strategies of metal‐free heteroatom‐doped nanocarbon materials from biomass for use in rechargeable zinc–air batteries. It also covers the significance of these materials as electrocatalysts and electrodes for improving the oxygen reduction and evolution reactionsin.
Molla Asmare Alemu   +4 more
wiley   +1 more source

Unveiling the Neighboring Screening Effect and Strong p‐d Coupling in CO2 Reduction on Graphene‐Supported Metal‐Free and Iron Phthalocyanine

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This study investigates the catalytic mechanisms of phthalocyanine and iron phthalocyanine in CO2 reduction reactions, analyzing C1 pathway energetics and electron behavior modulated by Fe–N p‐d coupling, with identified screening shielding effects on second‐nearest neighbors.
Zikang Li   +9 more
wiley   +1 more source

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