Concept

Allotropes of carbon

Related publications (285)

Palladium-Catalyzed Multicomponent Synthesis of Fully Substituted Alkylidene Furanones

Qian Wang, Jieping Zhu, Ruben Omar Torres Ochoa, Angel Renteria Gomez

In the presence of a catalytic amount of Pd(OAc)(2) and XantPhos, the three-component reaction of ynones, imines, and aryl iodides affords fully substituted alkylidene-furan-3(2H)-ones via a sequence of the Mannich reaction followed by chemo- and regiosele ...

AMER CHEMICAL SOC2020

Electrochemical performance of polymer-derived SiOC and SiTiOC ceramic electrodes for artificial cardiac pacemaker applications

Jürgen Brugger, Lorenz Hagelüken, Fatemeh Navaee, Jongmoon Jang

In an implantable electrode, such as a pacemaker electrode, fibrotic tissue formation due to a foreign body reaction is an important challenge affecting the efficiency to transmit the electrical signal of the device. The chemical inertness, biocompatibilit ...

2020

Inkjet‐Printed Composites for Room‐Temperature VOC Sensing: From Ink Formulation to Sensor Characterization

Jürgen Brugger, Thomas Maeder, Mohammadmahdi Kiaee

The authors report the fabrication and characterization of chemiresistive sensors, composed of a thermoplastic elastomer (TPE), styrene‐ethylene‐ran‐butylene‐styrene, and a high‐structure carbon black (CB) targeted for detecting hydrocarbons at or near roo ...

2020

Adsorption-induced spontaneous curvature and superflexibility in monolayer graphene

Graphene is considered an enabling material for next generation sensors, due to the remarkable properties derived from its atomic thickness. However, these promises come with acute sensitivity to parasite adsorbates, that may hinder reaching the full poten ...

AMER PHYSICAL SOC2020

Coherent Epitaxial Semiconductor-Ferromagnetic Insulator InAs/EuS Interfaces: Band Alignment and Magnetic Structure

Gabriel Aeppli, Vladimir N. Strocov, Sara Marti Sanchez, Yu Liu

Hybrid semiconductor-ferromagnetic insulator heterostructures are interesting due to their tunable electronic transport, self-sustained stray field, and local proximitized magnetic exchange. In this work, we present lattice-matched hybrid epitaxy of semico ...

AMER CHEMICAL SOC2020

Confinement of fluorine anions in nickel-based catalysts for greatly enhancing oxygen evolution activity

Yun Tong, Pengzuo Chen

Herein, we highlighted fluorine-anion-modification as a useful method for enhancing OER catalytic activity. Fluorine-anion-doped Ni foam exhibits an almost 10-fold enhancement in OER catalytic activity. Moreover, fluorine-anion-modification could be used a ...

ROYAL SOC CHEMISTRY2020

Toward Bright Red-Emissive Carbon Dots through Controlling Interaction among Surface Emission Centers

Relatively weak red photoluminescence of carbon dots (CDots) is a major challenge on the way to their successful implementation in biological and optoelectronic devices. We present a theoretical analysis of the interaction among the surface emission center ...

2020

Nanostructured alloys light the way to silicon-based photonics

Anna Fontcuberta i Morral

Silicon used for electronics has a cubic crystal lattice, which makes the material unsuitable for photonics applications. A method for producing germanium and silicon-germanium alloys that have hexagonal lattices offers a solution. ...

NATURE PUBLISHING GROUP2020

Crystallization of gas-selective nanoporous graphene by competitive etching and growth: a modeling study

Kumar Varoon Agrawal, Soumajit Dutta

A robust synthesis methodology for crystallizing nanoporous single-layer graphene hosting a high density of size-selective nanopores is urgently needed to realize the true potential of two-dimensional membranes for gas separation. Currently, there are no c ...

2019

Imaging of transition charge densities involving carbon core excitations by all X-ray sum-frequency generation

X-ray diffraction signals from the time-evolving molecular charge density induced by selective core excitation of chemically inequivalent carbon atoms are calculated. A narrowband X-ray pulse selectively excites the carbon K-edge of the -CH3 or -CH2F group ...

ROYAL SOC2019

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