Year: 2016
Type: article
Abstract: Diamondoids are an intriguing group of carbon-based nanomaterials, which combine desired properties of inorganic nanomaterials and small hydrocarbon molecules with atomic-level uniformity. In this Letter, we report the first comparative study on the effect of pressure on a series of diamondoid crystals with systematically varying molecular geometries and shapes, including zero-dimensional (0D) adamantane; one-dimensional (1D) diamantane, [121]tetramantane, [123]tetramantane, and [1212]pentamantane; two-dimensional (2D) [12312]hexamantane; and three-dimensional (3D) triamantane and [1(2,3)4]pentamantane. We find the bulk moduli of these diamondoid crystals are strongly dependent on the diamondoids' molecular geometry with 3D [1(2,3)4]pentamantane being the least compressible and 0D adamantane being the most compressible. These diamondoid crystals possess excellent structural rigidity and are able to sustain large volume deformation without structural failure even after repetitive pressure loading cycles. These properties are desirable for constructing cushioning devices. We also demonstrate that lower diamondoids outperform the conventional cushioning materials in both the working pressure range and energy absorption density.
Authors: Fan Yang, Yu Lin, Maria Baldini, Jeremy E. P. Dahl, Robert M. K. Carlson, Wendy L. Mao
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Awards: G102163711, G1229526393, CENTER FOR ENERGY FRONTIER RESEARCH IN EXTREME ENVIRONMENTS (EFREE) -- EFRC, G22000355, G222768804, G2287611682, G2371548206, MRI Consortium: Development of a Monochromator System for Enabling New Imaging and Submicron Probes for High Pressure Research, G262962599, G303061748, G3318903820, G3549925030, G412961744, G4221319090, G426311843, G4446722937, HPACT AN INTEGRATED HIGH PRESSURE FACILITY AT THE ADVANCED PHOTON SOURCE, G495301720, G498139845, G513797252, G5570207115, CENTER FOR ENERGY FRONTIER RESEARCH IN EXTREME ENVIRONMENTS (EFREE) -- EFRC, G6848031779, G6918803902, HPCAT-AN INTEGRATED HIGH-PRESSURE FACILITY AT THE ADVANCED PHOTON SOURCE, HPCAT-AN INTEGRATED HIGH-PRESSURE FACILITY AT THE ADVANCED PHOTON SOURCE, G8382000481, HIGH PRESSURE COLLABORATIVE ACCESS TEAM (HPCAT) OPERATIONS, G969889393, G993149817
OpenAlex ID: W2546567204