Synthesis strategies towards amorphous porous carbons with selective oxygen functionalization for the application as reference material

Herold F, Leubner O, Pfeifer P, Zakgeym D, Drochner A, Qi W, Etzold BJ (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Carbon Elsevier

Book Volume: 171

Pages Range: 658-670

DOI: 10.1016/j.carbon.2020.09.030

Abstract

Manipulation of carbon surface functionalization and especially of oxygen surface groups has been demonstrated to be key for obtaining high performance materials in a multitude of applications. Although control of carbon surface chemistry offers large potential in many technical relevant applications, qualitative and quantitative analysis of surface oxides for amorphous and porous carbons remains challenging. In this study, we attempt selective, organic chemistry-based functionalization of a polymer-derived porous model carbon featuring high oxygen loadings, with the aim to establish analytical standards for temperature programmed desorption (TPD) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). In this context, quantitative chemical reduction of an oxidized carbon material with lithium aluminum hydride (LiAlH4) is utilized as the key for the synthesis of carbon materials with defined ensembles of oxygen surface groups (hydroxyl groups and ethers). Based on this reduction strategy, selective LiAlH4 reduction based on protection group chemistry leads to aldehydes, ketones and quinones as surface functional groups and chemical grafting is studied for the selective introduction of phenyl esters, methyl ethers and carboxylic acids. All materials are evaluated with respect to the applicability as analytical standard by DRIFT spectroscopy, TPD, X-ray photoelectron spectroscopy and titration methods.

Authors with CRIS profile

Dina Zakgeym
Bastian Etzold

Involved external institutions

Technische Universität Darmstadt DE Germany (DE) Chinese Academy of Sciences (CAS) / 中国科学院 CN China (CN)

How to cite

APA:

Herold, F., Leubner, O., Pfeifer, P., Zakgeym, D., Drochner, A., Qi, W., & Etzold, B.J. (2021). Synthesis strategies towards amorphous porous carbons with selective oxygen functionalization for the application as reference material. Carbon, 171, 658-670. https://doi.org/10.1016/j.carbon.2020.09.030

MLA:

Herold, Felix, et al. "Synthesis strategies towards amorphous porous carbons with selective oxygen functionalization for the application as reference material." Carbon 171 (2021): 658-670.

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