Results 121 to 130 of about 30,108 (299)

Unraveling Synergistic Regulation Mechanism in Nitrogen/Sulfur Co‐Doped Biomass‐Derived Hard Carbon Toward Durable Sodium‐Ion Battery Anodes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Nitrogen/sulfur co‐doping optimizes the electron and spatial structure of biomass‐derived hard carbon, and the anode demonstrates superior long‐term cycling stability over 2000 cycles, validating an improved “adsorption‐intercalation‐pore filling” mechanism.
Qian Long   +8 more
wiley   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Metallurgy: A compilation [PDF]

open access: yes
A technology utilization program is presented for the dissemination of information on technological developments which have potential utility outside the aerospace and nuclear communities.

core   +1 more source

High‐Coverage Nanometric MOx (M = Ir, Rh) Clusters Anchored on Spinel Co3O4 Matrix With Amorphous/Crystalline Heterostructure Harness Efficient Water Electrolysis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Strong interfacial electronic coupling between nanometric MOx (M = Ir and Rh) clusters and the spinel matrix optimizes the electronic environment and redistributes spatial charge, thereby enabling efficient water electrolysis. Architecting nanometric cluster electrocatalysts with high density of active atoms offers a valuable avenue to simultaneously ...
Jiao Wu   +7 more
wiley   +1 more source

Hydrogen environment embrittlement of astroloy and Udimet 700 (nickel-base) and V-57 (iron-base) superalloys [PDF]

open access: yes
The sensitivity to hydrogen environment embrittlement of three superalloys was determined. Astroloy forgings were resistant to embrittlement during smooth tensile, notched tensile, and creep testing in 3.5-MN/sq m hydrogen over the range 23 to 760 C. The
Gray, H. R., Joyce, J. P.
core   +1 more source

Copper Complexes with Arylated Triethylenetetramine Ligands: Reactivity Toward Dioxygen and Peroxides

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Here, we describe new Cu(I)/Cu(II) complexes based on arylated tren ligands and investigate their reactivity toward O2 and peroxides. Low‐temperature–stopped flow studies revealed the formation of transient copper–oxygen species, including superoxido, hydroperoxido, and alkylperoxido intermediates.
Chiara Eleonora Campi   +2 more
wiley   +1 more source

Demonstration of the feasibility of automated silicon solar cell fabrication [PDF]

open access: yes
An analysis of estimated costs indicate that for an annual output of 4,747,000 hexagonal cells (38 mm. on a side) a total factory cost of $0.866 per cell could be achieved.
Taylor, W. E., Thornhill, J. W.
core   +1 more source

ZnO Nanowires by Chemical Bath Deposition: A Review on Doping and Functional Devices

open access: yesElectron, EarlyView.
This review reports the most recent and well‐established state‐of‐the‐art and scientific challenges related to the doping of ZnO nanowires by chemical bath deposition, encompassing native point and hydrogen‐related defects, as well as extrinsic dopants.
Clément Lausecker   +3 more
wiley   +1 more source

Effects of cobalt in nickel-base superalloys [PDF]

open access: yes
The role of cobalt in a representative wrought nickel-base superalloy was determined. The results show cobalt affecting the solubility of elements in the gamma matrix, resulting in enhanced gamma' volume fraction, in the stabilization of MC-type carbides,
Jarrett, R. N., Tien, J. K.
core   +1 more source

Rational design of Ni‐based catalysts for methane dry reforming: Recent advances and future perspectives

open access: yesFlexMat, EarlyView.
Addressing the challenges inherent in dry reforming of methane (DRM), this paper focuses on the structural design and performance optimization of Ni‐based catalysts. The modulation strategies for DRM are systematically reviewed across four dimensions: the micromorphology of active metals, metal‐support interactions, electronic modifications by ...
Bowei Cao, Junlei Zhang, Wanglei Wang
wiley   +1 more source

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