Results 31 to 40 of about 8,231 (245)

Boron Influence on Defect Structure and Properties of Lithium Niobate Crystals

open access: yesCrystals, 2021
Defect structure of nominally pure lithium niobate crystals grown from a boron doped charge have been studied by Raman and optical spectroscopy, laser conoscopy, and photoinduced light scattering.
Nikolay V. Sidorov   +6 more
doaj   +1 more source

The Structures and Bonding of Bismuth-Doped Boron Clusters: BiB4 and BiB5

open access: yesInorganics, 2023
We present an investigation on the structures and chemical bonding of two Bi-doped boron clusters BiBn− (n = 4, 5) using photoelectron spectroscopy and theoretical calculations. The electron affinities of BiB4 and BiB5 are measured to be 2.22(2) eV and 2.
Hyun Wook Choi   +4 more
doaj   +1 more source

Boron-Based Inverse Sandwich V2B7 Cluster: Double π/σ Aromaticity, Metal–Metal Bonding, and Chemical Analogy to Planar Hypercoordinate Molecular Wheels

open access: yesMolecules, 2023
Inverse sandwich clusters composed of a monocyclic boron ring and two capping transition metal atoms are interesting alloy cluster systems, yet their chemical bonding nature has not been sufficiently elucidated to date.
Peng-Fei Han, Qiang Sun, Hua-Jin Zhai
doaj   +1 more source

Structural evolution and electronic properties of doped boron clusters Ta2Bn (n = 10 ∼ 20): Ta2B16 and Ta2B18 with strong aromaticity

open access: yesResults in Physics, 2023
In this work, we combine the CALYPSO method with DFT calculations to conduct a comprehensive structural search of Ta2Bn (n = 10 ∼ 20) clusters. Among all the candidate structures obtained by CALYPSO searching, the structures of ground state Ta2Bn ...
QingYang Li   +6 more
doaj   +1 more source

The Activation Energy of Viscous Flow and Liquid–Liquid Structure Transition in Co-B Alloys

open access: yesMetals, 2023
The temperature dependences of the kinematic viscosity during heating and cooling have been investigated in Co-B melts with a boron content of up to 30.8 at.
Yuri N. Starodubtsev   +3 more
doaj   +1 more source

Structure–Electronic property relationship in M–C2B9H11 complexes (M = Fe, Co, Ni, Cu): Toward efficient water-splitting electrocatalysts

open access: yesResults in Chemistry
This study presents a comprehensive first-principles investigation of the structural, electronic, and catalytic properties of a class of boron-rich clusters, M–C2B9H11 (M = Fe, Co, Ni, Cu), derived from crystalline B12 and C2B10 frameworks.
Nasim Hassani, Farbod Sadeghi
doaj   +1 more source

Gold(III) Complexation in the Presence of the Macropolyhedral Hydridoborate Cluster [B20H18]2−

open access: yesInorganics, 2022
Gold(III) complexation with the octadecahydrido-eicosaborate anion [B20H18]2− was studied for the first time. It was found that when gold(III) complexes [Au(L)Cl2]BF4 (L = bipy, phen) reacted with [B20H18]2−, complexes [Au(L)Cl2]2[B20H18] were isolated ...
Varvara V. Avdeeva   +6 more
doaj   +1 more source

Functionalizing graphene by embedded boron clusters

open access: yesNanotechnology, 2008
10 pages, 2 figures, 1 ...
Quandt, A.   +3 more
openaire   +4 more sources

Ab Initio Prediction of Boron Compounds Arising from Borozene: Structural and Electronic Properties

open access: yesNanoscale Research Letters, 2009
Structure and electronic properties of two unusual boron clusters obtained by fusion of borozene rings have been studied by means of first principles calculations based on the generalized-gradient approximation of the density functional theory. Moreover,
La Magna A, Deretzis I, Pucci R, Forte G
doaj   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

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