Results 91 to 100 of about 911,271 (311)

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

open access: yesAdvanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari   +4 more
wiley   +1 more source

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel   +4 more
wiley   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

open access: yesAdvanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado   +6 more
wiley   +1 more source

Life cycle of the centrally planned economy: Why Soviet growth rates peaked in the 1950s [PDF]

open access: yes
The highest rates of growth of labor productivity in the Soviet Union were observed not in the 1930s (3% annually), but in the 1950s (6%). The TFP growth rates by decades increased from 0.6% annually in the 1930s to 2.8% in the 1950s and then fell ...
Popov, Vladimir
core   +4 more sources

ECONOMIC CRISIS AND CRISIS OF POLITICAL PARADIGM

open access: yesActa Economica, 2009
In this paper we consider modern economy crisis regarding conflict of two matrix: economic-political organizing of society which marked modern western civilization, or in other words collectivism model and its planned economy versus individualism model ...
Александар Савановић, M.Sc.
doaj  

Searching for the accounting features of capitalism: an illustration with the economic transition process in China [PDF]

open access: yes
In this paper, the authors show that capitalism and double-entry bookkeeping are not indissociably interconnected as Sombart argued in his book in 1916. Indeed, the double-entry bookkeeping accounting system was also adopted by anti-capitalist countries ...
Chiapello, Eve, Ding, Yuan
core  

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

open access: yesAdvanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

Leisure Externalities: Implications for Growth and Welfare [PDF]

open access: yes
This paper develops a neoclassical growth model with leisure externalities. Ignoring positive (negative) leisure externalities leads to equilibrium consumption, labor and capital that are too high (low) and leisure that is too low (high).
Mihaela Pintea
core  

High Energy Density Asymmetric Aqueous Supercapacitor Based on a 2D Manganese Carbide as a Positive Electrode

open access: yesAdvanced Functional Materials, EarlyView.
A circular route, involving upcycling of waste surgical masks, affords a Mn‐based layered carbide with porosity, redox activity and low work function. These features enable its effective operation as positive supercapacitor electrode in an aqueous asymmetric supercapacitor delivering 213 Wh L−1 energy density.
Debabrata Nandi   +7 more
wiley   +1 more source

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