Results 81 to 90 of about 252,220 (294)

Amphoteric Cu‐Doping Leading to High Thermoelectric Performance in p‐Type Bismuth Antimony Telluride

Advanced Functional Materials, EarlyView.
This study shows that Cu plays two opposite roles in p‐type Bi0.5Sb1.5Te3 depending on the processing route. Under thermodynamic‐equilibrium bulk‐synthesis, Cu mainly occupies cation sites, increases hole concentration, preserves mobility, and slightly reduces lattice heat transport. The best‐performing composition among the investigated series reaches
Moritz Thiem, Zhiyuan Li, Minsu Heo, Fangyi Hu, Tian Lan, Youngdeog Koh, Ruiwen Xie, Chuanmu Tian, Marc Widenmeyer, Hyun‐Sik Kim, Jan P. Hofmann, Yuan Yu, Hongbin Zhang, Anke Weidenkaff, G. Jeffrey Snyder, Wenjie Xie   +15 more
wiley   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Evaluating carbochlorination for processing natural flake graphite into Li-ion battery-grade graphite

Future Batteries
Chlorination was evaluated as a HF-free purification step within the conversion process of natural flake graphite (NFG) into coated spherical purified graphite (CSPG) for Li‑ion battery anodes.
Samuel Quéméré, Alceni Yasser Barry, Mathieu Toupin, Ali Crawford, Nicole A. Poirier, Jean-Yves Huot, Kevin Watson, Lionel Roué   +7 more
doaj   +1 more source

Defect‐Free Transfer Principles for Scalable, Thin Garnet‐Based Hybrid Solid Electrolytes in Solid‐State Batteries

Advanced Functional Materials, EarlyView.
Defect‐free transfer principles enable scalable fabrication of 15 µm‐thin garnet‐based hybrid solid electrolytes. Hansen solubility parameters correlate interfacial compatibility with coating, transfer, and impregnation behavior, guiding rational selection of slurry/substrate, binder/substrate, and binder/polymer electrolyte combinations.
Seul Gi Chu, Myeong Hwan Lee, Jungdon Suk, Seung‐Wan Song, Hye Min Ryu, Halim Kang, Jusung Han, Myung‐Soo Park, Yongku Kang   +8 more
wiley   +1 more source

Graphite Minerals and Graphene

Graphite is a layered mineral with strong sp2 hybridization carbons within each graphene layer, and these graphene layers are bonded by the weak van der Waals interaction forces.

core   +1 more source

Cathodic Exfoliation of Various Graphite Materials in Potassium Chloride Electrolyte

Molecules
Cathodic exfoliation of graphite has emerged as an attractive method to synthesize high-quality and lo- defect graphene. Here, it is demonstrated that the type of starting graphite material influences the properties of exfoliated graphene. Graphite foil,
Md Habibullah Dalal, Nuwan Hegoda Arachchi, Chong-Yong Lee, Gordon G. Wallace   +3 more
doaj   +1 more source

Lewis Acid Site Engineering in MOF‐Derived Aluminum Oxide/Carbon Composites for Dechlorination of Waste Plastic Pyrolysis Oil

Advanced Functional Materials, EarlyView.
Controlled carbonization of an Al‐MOF partially decomposes its linkers, exposing coordinatively unsaturated Al centers within an oxide/carbon composite. The resulting Lewis acid sites, rather than surface area, govern organochlorine capture: the composite removes chemically diverse organochlorines from waste plastic pyrolysis oil, outperforms a ...
Seong Cheon Kim, Byeongju Jeon, Suk Hyun Lim, Eun Hee Kwon, Nam Sun Nho, Siyoung Q. Choi, Jeasung Park   +6 more
wiley   +1 more source

Insight on the interaction between image potential state and π bands in graphite

, 2013
We demonstrate that the electron density of the light-populated image potential states in graphite reaches its maximum when the photon energy of ultrashort laser pulses is resonant with the π−π* band gap at the M point of the Brillouin zone.
Ferrini, Gabriele, Pagliara, Stefania, Montagnese, Matteo, Dal Conte, Stefano, Galimberti, Gianluca, Parmigiani, Fulvio   +5 more
core   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

Advanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin, Stav Rahmany, Anat Shvets, Hadar Shema, Elad Gross, Ido Hadar, Lioz Etgar   +6 more
wiley   +1 more source

Graphite fuel studies, Part 2: fine grinding of artificial graphite.

, 1959
Homogeneous dispersions of fissile and fertile material in graphite are being currently considered as fuel for high-temperature, gas-cooled nuclear reactors.
May, JR, Warner, RK
core