Results 121 to 130 of about 11,919,933 (393)

Supercompliant Lattice Boosts n‐type AgSbTe2 Thermoelectrics

open access: yesAdvanced Functional Materials, EarlyView.
The supercompliant lattice design enables the first realization of n‐type electrical transport in AgSbTe2 by overcoming intrinsic electron‐killer defects and exceeding the doping limits imposed by the conventional Hume–Rothery rule. Accordingly, the best performance n‐type Ag0.8Na0.3Sb0.6Bi0.4Te2 sample achieves a low κ of 0.27 W·m−1·K−1 that ...
Ruoyan Li   +15 more
wiley   +1 more source

Low concentration electrolyte: A new approach for achieving high performance lithium batteries

open access: yeseScience
The conventional perspective suggests that low-concentration electrolytes (LCEs) face challenges in achieving stable charge/discharge properties due to the decreased ionic conductivity resulting from lower Li+ concentrations.
Lin Liu   +6 more
doaj  

Enhancing B/N‐H Fuel Cell Durability: Insights from Degradation Mechanisms and Optimization

open access: yesChemElectroChem
This study investigates the critical durability challenges of direct liquid fuel cells using B/N‐H‐based fuels—decaborane (B10H14) and hydrazine borane (N2H4BH3)—for practical applications.
Peng Qiu   +8 more
doaj   +1 more source

Technology Status: Fuel Cells and Electrolysis Cells [PDF]

open access: yes
The status of the baselined shuttle fuel cell as well as the acid membrane fuel cell and space-oriented water electrolysis technologies are presented. The more recent advances in the alkaline fuel cell technology area are the subject of a companion paper.
Mcbryar, H.
core   +1 more source

Apparatus for Operando X-ray Diffraction of Fuel Electrodes in High Temperature Solid State Electrochemical Cells

open access: yes, 2018
Characterizing electrochemical energy conversion devices during operation is an important strategy for correlating device performance with the properties of cell materials under real operating conditions.
Benck, Jesse D.   +4 more
core   +1 more source

Coupling Interfacial Redox‐Reactions with In Situ Proton Generation for the Photoelectrochemical Separation of Rare‐Earth Elements

open access: yesAdvanced Functional Materials, EarlyView.
To enhance the sustainability of electrochemical separations for resource recovery, a photoelectrochemical ion recovery system is developed that utilizes renewable solar energy. A composite integrating titianium dioxide nanorods and a redox‐copolymer enables spontaneous cation adsorption and light‐activated redox reactions for regeneration, thus ...
Ki‐Hyun Cho   +3 more
wiley   +1 more source

Hydrogen's Empty Environmental Promise [PDF]

open access: yes, 2004
Politicians on both the Left and the Right have increasingly embraced subsidies for hydrogenpowered fuel cells as a promising way to move America away from reliance on petroleum.
Donald Anthrop
core  

Transient Stiffness Patterning in Hydrogels Driven by Dissipative Mechanochemical Coupling

open access: yesAdvanced Functional Materials, EarlyView.
Force‐induced disulfide bond rupture in a polymer‐based hydrogel, coupled with chemical or electrochemical reoxidation, leads to the transient modulation of the hydrogel's stiffness properties. High spatiotemporal control is achieved by this dissipative process, enabling the development of out‐of‐equilibrium stiffness patterns and transient, dose ...
Roberto Baretta   +2 more
wiley   +1 more source

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