Results 71 to 80 of about 313,235 (301)

Active Hydrogen for Electrochemical Ammonia Synthesis

Advanced Functional Materials, EarlyView.
This review provides a comprehensive overview of the active hydrogen (H*) for electrochemical ammonia synthesis with particular attention given to the regulation of H* generation and consumption to suppress the competition of hydrogen evolution reaction and enhance the yield, selectivity, and Faradaic efficiency of ammonia.
Guoqiang Gan, Guo Hong, Wenjun Zhang
wiley   +1 more source

Cosmological and thermodynamics analysis in Weyl gravity

European Physical Journal C: Particles and Fields, 2020
In the framework of modified Weyl gravity, we observe the equilibrium picture of the thermodynamical laws for flat Friedmann–Robertson–Walker metric with chameleon scalar field and analyze the validity of the generalized second law of thermodynamics and ...
Abdul Jawad, Zoya Khan, Shamaila Rani
doaj   +1 more source

Thermodynamics of black holes: an analogy with glasses

, 1998
The present equilibrium formulation of thermodynamics for black holes has several drawbacks, such as assuming the same temperature for black hole and heat bath. Recently the author formulated non-equilibrium thermodynamics for glassy systems.
A. Q. Tool, C. W. Misner, D. N. Page, D. Pavon, G. 't Hooft, J. Bekenstein, J. M. Bardeen, R. W. Wald, S. W. Hawking, T. A. Jacobson, Th. M. Nieuwenhuizen, Th. M. Nieuwenhuizen, Th. M. Nieuwenhuizen, Th. M. Nieuwenhuizen, W. H. Zurek, W. Israel   +15 more
core   +1 more source

Braun-Le Chatelier principle in dissipative thermodynamics [PDF]

arXiv, 2016
Braun-Le Chatelier principle is a fundamental result of equilibrium thermodynamics, showing how stable equilibrium states shift when external conditions are varied. The principle follows from convexity of thermodynamic potential. Analogously, from convexity of dissipation potential it follows how steady non-equilibrium states shift when thermodynamic ...
arxiv  

Metastable Liquid–Liquid Phase Separation and Aging Lead to Strong Processing Path Dependence in Mini‐Spidroin Solutions

Advanced Functional Materials, EarlyView.
Biomolecular condensates have central functions in cells and are also observed during the assembly of biological materials such as silks. For a mini‐spidroin protein, the presence of long‐lived metastable or dynamically arrested intermediate states leads to complex pathways and difficulties in identifying equilibrium states. Constructing phase diagrams
Dmitrii Fedorov, Fred‐Eric Sammalisto, Adam L. Harmat, Martin Ahlberg, Salla Koskela, Mikko P. Haataja, Alberto Scacchi, Maria Sammalkorpi, Markus B. Linder   +8 more
wiley   +1 more source

Time and thermodynamics extended discussion on “Time & clocks: A thermodynamic approach”

Results in Physics, 2020
In the paper, “Time & clocks: A thermodynamic approach” Lucia and Grisolia describe the connections between the physical nature of time and macroscopic irreversibility in thermodynamics.
Atanu Chatterjee, Germano Iannacchione
doaj  

Thermodynamic analysis of modified teleparallel gravity involving higher-order torsion derivative terms

European Physical Journal C: Particles and Fields, 2019
The present study is elaborated to investigate the validity of thermodynamical laws in a modified teleparallel gravity based on higher-order derivative terms of torsion scalar.
Saira Waheed, M. Zubair
doaj   +1 more source

Facile Synthesis of CuxS Electrocatalysts for CO2 Conversion into Formate and Study of Relations Between Cu and S with the Selectivity

Advanced Functional Materials, EarlyView.
Copper sulfide based electrocatalysts for CO2 conversion are selective for production of formate as major product. Transformations under electrochemical conditions result in significant sulfur loss, and this study examines the nature of how persistent, residual sulfur (observed as surface SO42– species and S dissolved in the electrolyte) can sustain ...
Sasho Stojkovikj, Gumaa A. El‐Nagar, Siddharth Gupta, Metodija Najdoski, Violeta Koleva, Theocharis Tzanoudakis, Frederik Firschke, Peter Bogdanoff, Matthew T. Mayer   +8 more
wiley   +1 more source

Why so many "Schools" of Thermodynamics?

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2008
A classification representing some main branches of phenomenological non-equilibrium thermodynamics is discussed. Differences and similarities of these selected branches are explained.
Muschik, Wolfgang
doaj   +1 more source

Some thoughts about nonequilibrium temperature

, 1996
The main objective of this paper is to show that, within the present framework of the kinetic theoretical approach to irreversible thermodynamics, there is no evidence that provides a basis to modify the ordinary Fourier equation relating the heat flux ...
CALLEN H. B., DE GROOT S. R., ERNST M. H., Eu B. C., GARCÍA-COLÍN L. S., GARCÍA-COLÍN L. S., GARCÍA-COLÍN L. S., GRAD H., HARRIS S., HOOVER W., Jou D., KEIZER J., KEIZER J., L. S. GARCIA-COLIN, MEIXNER J., MÜLLER I., NETTLETON R. E., NETTLETON R. E., NETTLETON R. E., RAMOS J. G., RUGGIERI T., VASCONCELLOS A. R., VASCONCELLOS A. R., VASCONCELLOS A. R., VELASCO R. M., VELASCO R. M., VELASCO R. M., YIP S.   +27 more
core   +1 more source