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Microbial fuel cell cathode with dendrimer encapsulated Pt nanoparticles as catalyst

Graphical abstract Highlights ► Dendrimer-encapsulated platinum nanocomposites (Pt-DENs) and electrodeposited Pt nanoparticles are prepared as cathodic catalyst of MFCs. ► Compared to electrodeposited Pt- based cathode, the Pt-DENs/carbon paper cathode shows better electrochemical performance and ca... Full description

Journal Title: Journal of Power Sources 2011, Vol.196(24), pp.10611-10615
Main Author: Yang, Xiaoling
Other Authors: Lu, Jindan , Zhu, Yihua , Shen, Jianhua , Zhang, Zhen , Zhang, Jianmei , Chen, Cheng , Li, Chunzhong
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0378-7753 ; DOI: 10.1016/j.jpowsour.2011.08.111
Link: http://dx.doi.org/10.1016/j.jpowsour.2011.08.111
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recordid: sciversesciencedirect_elsevierS0378-7753(11)01701-0
title: Microbial fuel cell cathode with dendrimer encapsulated Pt nanoparticles as catalyst
format: Article
creator:
  • Yang, Xiaoling
  • Lu, Jindan
  • Zhu, Yihua
  • Shen, Jianhua
  • Zhang, Zhen
  • Zhang, Jianmei
  • Chen, Cheng
  • Li, Chunzhong
subjects:
  • Dendrimer-Encapsulated Pt Nanoparticles
  • Microbial Fuel Cell
  • Catalyst
  • Air-Cathode
  • Electrodeposited Pt
ispartof: Journal of Power Sources, 2011, Vol.196(24), pp.10611-10615
description: Graphical abstract Highlights ► Dendrimer-encapsulated platinum nanocomposites (Pt-DENs) and electrodeposited Pt nanoparticles are prepared as cathodic catalyst of MFCs. ► Compared to electrodeposited Pt- based cathode, the Pt-DENs/carbon paper cathode shows better electrochemical performance and catalytic activity. ► Pt-DENs has improved the oxygen reduction reaction in cathodes and increased the power output to 630 mW m −2. In this paper, we investigated the use of polyamidoamine (PAMAM) dendrimer-encapsulated platinum nanoparticles (Pt-DENs) as a promising type of cathode catalyst for air-cathode single chamber microbial fuel cells (SCMFCs). The Pt-DENs, prepared via template synthesis method, have uniform diameter distribution with size range of 3–5 nm. The Pt-DENs then loaded on to a carbon substrate. For comparison, we also electrodeposited Pt on carbon substrate. The calculation shows that the loading amount of Pt-DENs on carbon substrate is about 0.1 mg cm −2, which is three times lower than that of the electrodeposited Pt (0.3 mg cm −2). By measuring batch experiments, the results show that Pt-DENs in air-cathode SCMFCs have a power density of 630 ± 5 mW m −2 and a current density of 5200 ± 10 mA m −2 (based on the projected anodic surface area), which is significantly better than electrodeposited Pt cathodes (power density: 275 ± 5 mW m −2 and current density: 2050 ± 10 mA m −2). Additionally, Pt-DENs-based cathodes resulted in a higher power production with 129.1% as compared to cathode with electrodeposited Pt. This finding suggests that Pt-DENs in MFC cathodes is a better catalyst and has a lower loading amount than electrodeposited Pt, and may serve as a novel and alternative catalyst to previously used noble metals in MFC applications.
language: eng
source:
identifier: ISSN: 0378-7753 ; DOI: 10.1016/j.jpowsour.2011.08.111
fulltext: no_fulltext
issn:
  • 03787753
  • 0378-7753
url: Link


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titleMicrobial fuel cell cathode with dendrimer encapsulated Pt nanoparticles as catalyst
creatorYang, Xiaoling ; Lu, Jindan ; Zhu, Yihua ; Shen, Jianhua ; Zhang, Zhen ; Zhang, Jianmei ; Chen, Cheng ; Li, Chunzhong
ispartofJournal of Power Sources, 2011, Vol.196(24), pp.10611-10615
identifierISSN: 0378-7753 ; DOI: 10.1016/j.jpowsour.2011.08.111
subjectDendrimer-Encapsulated Pt Nanoparticles ; Microbial Fuel Cell ; Catalyst ; Air-Cathode ; Electrodeposited Pt
descriptionGraphical abstract Highlights ► Dendrimer-encapsulated platinum nanocomposites (Pt-DENs) and electrodeposited Pt nanoparticles are prepared as cathodic catalyst of MFCs. ► Compared to electrodeposited Pt- based cathode, the Pt-DENs/carbon paper cathode shows better electrochemical performance and catalytic activity. ► Pt-DENs has improved the oxygen reduction reaction in cathodes and increased the power output to 630 mW m −2. In this paper, we investigated the use of polyamidoamine (PAMAM) dendrimer-encapsulated platinum nanoparticles (Pt-DENs) as a promising type of cathode catalyst for air-cathode single chamber microbial fuel cells (SCMFCs). The Pt-DENs, prepared via template synthesis method, have uniform diameter distribution with size range of 3–5 nm. The Pt-DENs then loaded on to a carbon substrate. For comparison, we also electrodeposited Pt on carbon substrate. The calculation shows that the loading amount of Pt-DENs on carbon substrate is about 0.1 mg cm −2, which is three times lower than that of the electrodeposited Pt (0.3 mg cm −2). By measuring batch experiments, the results show that Pt-DENs in air-cathode SCMFCs have a power density of 630 ± 5 mW m −2 and a current density of 5200 ± 10 mA m −2 (based on the projected anodic surface area), which is significantly better than electrodeposited Pt cathodes (power density: 275 ± 5 mW m −2 and current density: 2050 ± 10 mA m −2). Additionally, Pt-DENs-based cathodes resulted in a higher power production with 129.1% as compared to cathode with electrodeposited Pt. This finding suggests that Pt-DENs in MFC cathodes is a better catalyst and has a lower loading amount than electrodeposited Pt, and may serve as a novel and alternative catalyst to previously used noble metals in MFC applications.
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titleMicrobial fuel cell cathode with dendrimer encapsulated Pt nanoparticles as catalyst
descriptionGraphical abstract Highlights ► Dendrimer-encapsulated platinum nanocomposites (Pt-DENs) and electrodeposited Pt nanoparticles are prepared as cathodic catalyst of MFCs. ► Compared to electrodeposited Pt- based cathode, the Pt-DENs/carbon paper cathode shows better electrochemical performance and catalytic activity. ► Pt-DENs has improved the oxygen reduction reaction in cathodes and increased the power output to 630 mW m −2. In this paper, we investigated the use of polyamidoamine (PAMAM) dendrimer-encapsulated platinum nanoparticles (Pt-DENs) as a promising type of cathode catalyst for air-cathode single chamber microbial fuel cells (SCMFCs). The Pt-DENs, prepared via template synthesis method, have uniform diameter distribution with size range of 3–5 nm. The Pt-DENs then loaded on to a carbon substrate. For comparison, we also electrodeposited Pt on carbon substrate. The calculation shows that the loading amount of Pt-DENs on carbon substrate is about 0.1 mg cm −2, which is three times lower than that of the electrodeposited Pt (0.3 mg cm −2). By measuring batch experiments, the results show that Pt-DENs in air-cathode SCMFCs have a power density of 630 ± 5 mW m −2 and a current density of 5200 ± 10 mA m −2 (based on the projected anodic surface area), which is significantly better than electrodeposited Pt cathodes (power density: 275 ± 5 mW m −2 and current density: 2050 ± 10 mA m −2). Additionally, Pt-DENs-based cathodes resulted in a higher power production with 129.1% as compared to cathode with electrodeposited Pt. This finding suggests that Pt-DENs in MFC cathodes is a better catalyst and has a lower loading amount than electrodeposited Pt, and may serve as a novel and alternative catalyst to previously used noble metals in MFC applications.
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abstractGraphical abstract Highlights ► Dendrimer-encapsulated platinum nanocomposites (Pt-DENs) and electrodeposited Pt nanoparticles are prepared as cathodic catalyst of MFCs. ► Compared to electrodeposited Pt- based cathode, the Pt-DENs/carbon paper cathode shows better electrochemical performance and catalytic activity. ► Pt-DENs has improved the oxygen reduction reaction in cathodes and increased the power output to 630 mW m −2. In this paper, we investigated the use of polyamidoamine (PAMAM) dendrimer-encapsulated platinum nanoparticles (Pt-DENs) as a promising type of cathode catalyst for air-cathode single chamber microbial fuel cells (SCMFCs). The Pt-DENs, prepared via template synthesis method, have uniform diameter distribution with size range of 3–5 nm. The Pt-DENs then loaded on to a carbon substrate. For comparison, we also electrodeposited Pt on carbon substrate. The calculation shows that the loading amount of Pt-DENs on carbon substrate is about 0.1 mg cm −2, which is three times lower than that of the electrodeposited Pt (0.3 mg cm −2). By measuring batch experiments, the results show that Pt-DENs in air-cathode SCMFCs have a power density of 630 ± 5 mW m −2 and a current density of 5200 ± 10 mA m −2 (based on the projected anodic surface area), which is significantly better than electrodeposited Pt cathodes (power density: 275 ± 5 mW m −2 and current density: 2050 ± 10 mA m −2). Additionally, Pt-DENs-based cathodes resulted in a higher power production with 129.1% as compared to cathode with electrodeposited Pt. This finding suggests that Pt-DENs in MFC cathodes is a better catalyst and has a lower loading amount than electrodeposited Pt, and may serve as a novel and alternative catalyst to previously used noble metals in MFC applications.
pubElsevier B.V.
doi10.1016/j.jpowsour.2011.08.111
eissn18732755
date2011-12-15