elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Metal-Containing Ceramic Composite with in-Situ Grown Carbon Nanotube as a Cathode Catalyst for Anion Exchange Membrane Fuel Cell and Rechargeable Zinc-Air Battery

Moni, Prabu and Pollachini, Maurício Goraiebe and Wilhelm, Michaela and Lorenz, Julian and Harms, Corinna and Murshed, M. Mangir and Rezwan, Kurosch (2019) Metal-Containing Ceramic Composite with in-Situ Grown Carbon Nanotube as a Cathode Catalyst for Anion Exchange Membrane Fuel Cell and Rechargeable Zinc-Air Battery. ACS Applied Energy Materials, 2 (8), pp. 6078-6086. American Chemical Society (ACS). doi: 10.1021/acsaem.9b01276. ISSN 2574-0962.

[img] PDF - Postprint version (accepted manuscript)
2MB

Official URL: https://doi.org/10.1021/acsaem.9b01276

Abstract

The development of new air-breathing cathode catalyst not only addresses the performance of fuel cells and metal-air batteries but also make them cheaper. Herein, we developed a new, metal containing (Ni, Co, Pt and their alloys) ceramic composite as a cathode electrocatalyst for anion exchange membrane fuel cell (AEMFC) and zinc-air battery (ZAB) application. The porous ceramic foams were generated with the help of a sacrificial template method in which polystyrene beads were infiltrated with a polysiloxane precursor. With addition of metal salts into the porous ceramic matrix, the formation of carbon nanotubes (CNTs) by applying catalyst-assisted pyrolysis was facilitated. The in situ grown CNTs in composite ceramic affect the charge transport and drastically improved the electrical conductivity of up to 6 orders in magnitude compared with the bare ceramics (H.A). The best performing Ni-containing ceramics (H.A.Ni) show improved oxygen reduction activity in half-cell measurements and for AEMFC delivered an open-circuit voltage of 0.65 V with a maximum power density of ∼10 mW cm-2. In rechargeable ZAB systems, the H.A.Ni showed excellent battery performance with a specific capacitance of 490 mAh g-1, maximum power density of 110 mW cm-2, and excellent discharge/charge cycle stability over 300 cycles. Results indicate that the presence of CNT and intermetallic silicides such as Ni2Si and Ni31Si12 tunes the electrical properties and enhances the electrocatalytic activity toward oxygen. Thus, the Ni-containing ceramic material is as an excellent cathode catalyst for AEMFC and rechargeable ZAB applications.

Item URL in elib:https://elib.dlr.de/128902/
Document Type:Article
Title:Metal-Containing Ceramic Composite with in-Situ Grown Carbon Nanotube as a Cathode Catalyst for Anion Exchange Membrane Fuel Cell and Rechargeable Zinc-Air Battery
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Moni, PrabuUniversity of BremenUNSPECIFIED
Pollachini, Maurício GoraiebeCSIR-Central Electrochemical Research Institute-Madras unitUNSPECIFIED
Wilhelm, MichaelaUniversity of BremenUNSPECIFIED
Lorenz, Julianjulian.lorenz (at) dlr.dehttps://orcid.org/0000-0002-9936-7667
Harms, Corinnacorinna.harms (at) dlr.dehttps://orcid.org/0000-0001-5916-3224
Murshed, M. MangirUniversity of BremenUNSPECIFIED
Rezwan, KuroschUniversität BremenUNSPECIFIED
Date:17 July 2019
Journal or Publication Title:ACS Applied Energy Materials
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:2
DOI :10.1021/acsaem.9b01276
Page Range:pp. 6078-6086
Publisher:American Chemical Society (ACS)
ISSN:2574-0962
Status:Published
Keywords:ceramic composite, sacrificial template, in situ growth of CNT, electrocatalyst, AEMFC, ZAB
HGF - Research field:Energy
HGF - Program:Technology, Innovation and Society
HGF - Program Themes:Renewable Energy and Material Resources for Sustainable Futures - Integrating at Different Scales
DLR - Research area:Energy
DLR - Program:E SY - Energy Systems Analysis
DLR - Research theme (Project):E - Energy Systems Technology (old)
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems > Fuel Cells
Deposited By: Lorenz, Julian
Deposited On:28 Oct 2019 17:38
Last Modified:17 Jul 2020 03:00

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.