Journal of Materials Chemistry | VOL. 9
Read

Enabling superior hybrid capacitive deionization performance in NASICON-structured Na3MnTi(PO4)3/C by incorporating a two-species redox reaction

Publication Date Mar 23, 2021

Abstract

Capacitive deionization (CDI) is a robust water treatment technique due to its energy-efficient, low cost, and environmentally safe features. Recently, the utilization of faradaic electrode materials to construct hybrid capacitive deionization (HCDI) is considered to be one of the effective ways to address the drawbacks of the inferior desalination capacity of conventional CDI. Here, for the first time, a Na3MnTi(PO4)3/C (NTMP/C) composite was prepared via a sol–gel-calcination method and used as a faradaic electrode in HCDI. The NTMP nanoparticles were encapsulated in a carbon matrix, which could reduce the ion diffusion distance as well as ensure rapid ion transmission. In addition, taking the advantage of the high ratio of pseudo-capacitive performance and the two-species redox reaction of Ti4+/Ti3+ and Mn3+/Mn2+ couples, the obtained NTMP/C composite displayed a large ion removal capacity (72.2 mg g−1) (IRC), ultrafast ion removal rate (IRR) (21.6 mg g−1 min−1) and excellent cycle stability. Moreover, the mechanism of the Na+ removal of NTMP/C in the desalination process was investigated via electrochemical and ex situ structural characterization. This study indicates that NTMP/C can be an alternative faradaic electrode material towards CDI applications.

Concepts
Powered ByUnsilo

Capacitive Deionization
Hybrid Capacitive Deionization
Faradaic Electrode Materials
Ion Removal Rate
Deionization
Desalination
Two-species Reaction
Faradaic Electrode
Capacitive
Capacitive Deionization Applications

Introducing Weekly Round-ups!Beta

Powered by R DiscoveryR Discovery

Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.

Climate change Research Articles published between May 09, 2022 to May 15, 2022

R DiscoveryMay 16, 2022
R DiscoveryArticles Included:  2

Introduction: Climate change is a pervasive threat to global biodiversity and is expected to have profound effects on the resilience and abundance of ...

Read More

Climate change Research Articles published between May 02, 2022 to May 08, 2022

R DiscoveryMay 09, 2022
R DiscoveryArticles Included:  2

We studied the fungal DNA present in a lake sediment core obtained from Trinity Peninsula, Hope Bay, north-eastern Antarctic Peninsula, using metabarc...

Read More

Climate change Research Articles published between Apr 25, 2022 to May 01, 2022

R DiscoveryMay 02, 2022
R DiscoveryArticles Included:  5

Introduction: Climate change and flooding events in South Ontario Climate change is altering climate patterns and adding pressure to climate systems a...

Read More

Climate change Research Articles published between Apr 18, 2022 to Apr 24, 2022

R DiscoveryApr 25, 2022
R DiscoveryArticles Included:  5

Introduction: Climate change triggers stark effects on species geographic ranges, leading to range shifts and disruptions in the functioning of ecosys...

Read More

Good health Research Articles published between Apr 18, 2022 to Apr 24, 2022

R DiscoveryApr 25, 2022
R DiscoveryArticles Included:  4

This study reviews the contributions made by each article in the theme issue with reference to case study examples of contemporary corporate social re...

Read More

Coronavirus Pandemic

You can also read COVID related content on R COVID-19

R ProductsCOVID-19

ONE PROBLEM . ONE PURPOSE . ONE PLACE

Creating the world’s largest AI-driven & human-curated collection of research, news, expert recommendations and educational resources on COVID-19

COVID-19 Dashboard