Issue 47, 2018, Issue in Progress
From the journal:

RSC Advances

Relating alkaline stability to the structure of quaternary phosphonium cations†

Bingzi Zhang,‡a   Hai Long, ORCID logo ‡b   Robert B. Kaspar,a   Junhua Wang,a   Shuang Gu,c   Zhongbin Zhuang, ORCID logo de   Bryan Pivovarb  and  Yushan Yan ORCID logo *ade  

* Corresponding authors

a Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA
E-mail: yanys@udel.edu

b National Renewable Energy Laboratory, MS ESIF302, 15013 Denver West Parkway, Golden, Colorado 80401, USA

c Department of Mechanical Engineering, Wichita State University, Wichita, KS 67260, USA

d State Key Lab of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China

e Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China

Abstract

Alkali-stable quaternary phosphonium (QP) is a type of cationic group for hydroxide exchange membranes (HEMs). To elucidate the relationship between structure and alkaline stability, we investigated the kinetics and degradation mechanism of a series of QP cations by both experiment and computation, and established a semi-empirical formula based on the Taft equation to directly estimate alkaline stability of QP cations from the 31P NMR chemical shift δ and the steric substituent constant Es, facilitating the search for QP cations with improved alkaline stability.

Graphical abstract: Relating alkaline stability to the structure of quaternary phosphonium cations

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C8RA03440K
Article type
Paper
Submitted
21 Apr 2018
Accepted
05 Jul 2018
First published
25 Jul 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 26640-26645

Permissions

Request permissions

Relating alkaline stability to the structure of quaternary phosphonium cations

B. Zhang, H. Long, R. B. Kaspar, J. Wang, S. Gu, Z. Zhuang, B. Pivovar and Y. Yan, RSC Adv., 2018, 8, 26640 DOI: 10.1039/C8RA03440K

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements