Micro-electro-mechanical systems (MEMS)-based micro-scale direct methanol fuel cell development

Yao, Shi‐Chune; Tang, Xiaowen; Hsieh, Cheng-Yu; Alyousef, Yousef; Vladimer, Michael; Fedder, Gary K.; Amón, Cristina H.

doi:10.1016/j.energy.2005.10.016

Cited by 141 publications

(69 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Of course the use of fuel requires a conversion mechanism (which will also impact on the system volume). Small-scale converters investigated to date include miniature turbine engines [3], [4] and a micro Stirling-engine [5], but the most researched and most promising to date are micro fuel cells [6], [7]. Fuel-based power sources naturally do not overcome the recharging requirement of batteries, but rather replace it with a (less frequent) refuelling requirement.…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

et al. 2008

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

et al. 2008

View full text Add to dashboard Cite

“…They offer several advantages such as light weight, cheap liquid fuel, easy handling and fast recharging. DM-MFCs can also be operated at ambient temperature and provide almost 10-times higher power density than existing Li-ion rechargeable batteries [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Enhanced performance of a silicon microfabricated direct methanol fuel cell with PtRu catalysts supported on few-walled carbon nanotubes

Borghei

Scotti

Kanninen

et al. 2014

Energy

View full text Add to dashboard Cite

Silicon micro fuel cells (Si-MFCs) are promising power supplies for microelectronic applications, however their development is still at early stages compared to the conventional proton exchange membrane fuel cells (PEMFCs). There are not many published reports on the durability of Si-MFCs and those available only projected the life-time of standard Vulcan based catalysts. However, the limited durability resulting from carbon corrosion is one of the crucial issues in fuel cells. In this study, Si-MFC with an integrated silicon nanograss diffusion layer is used for the direct methanol fuel cell investigations. The long-term (3-day) performance of PtRu catalysts supported on different carbon supports, namely Vulcan, Graphitized carbon nanofibers (GNFs) and Few-walled carbon nanotubes (FWCNTs), was studied. PtRu-FWCNTs and PtRu-GNFs exhibited respectively 471% 2 (20.0 mW cm -2 ) and 274% (13.1 mW cm -2 ) power density enhancements compared to PtRu-Vulcan (3.5 mW cm -2 ). After 3-day durability measurements, power density stayed at 72, 68 and 91% of the initial value, respectively for PtRu-FWCNTs, PtRu-GNFs and PtRu-Vulcan. To evaluate the influence of carbon supports as well as the distribution and the size of the nanoparticles on the overall performance of Si-MFCs, further characterizations with Raman, BET, XRD, SEM and TEM were performed.

show abstract

“…A type of all-polymer micro-DMFC was proposed by Cha et al, which adopted a UV-sensitive photoresist and applied UV lithography, lift-off and metallization processes [12]. A silicon-based micro-scale DMFC system was presented by Yao et al [13] This system used a silicon wafer with arrays of etched holes selectively coated with a non-wetting agent to collect cathode water, a silicon membrane micro pump to pump the collected water from the cathode to the anode and a passive liquid-gas separator to remove CO 2 bubbles. A MEMS-based DMFC using nano-imprint technology was developed by Zhang et al [14].…”

Section: Introductionmentioning

confidence: 99%

Development of a Direct Methanol Fuel Cell with Lightweight Disc Type Current Collectors

2014

View full text Add to dashboard Cite

Abstract:The direct methanol fuel cell (DMFC) adopts methanol solution as a fuel suitable for low power portable applications. A miniature, lightweight, passive air-breathing design is therefore desired. This paper presents a novel planar disc-type DMFC with multiple cells containing a novel developed lightweight current collector at both the anode and cathode sides. The present lightweight current collector adopts FR4 Glass/Epoxy as the substrate with the current collecting areas located at the corresponding membrane electrolyte assembly (MEA) areas. The current collecting areas are fabricated by sequentially coating a corrosion resistant layer and electrical conduction layer via the thermal evaporation technique. The anode current collector has carved flow channels for fuel transport and production. The cathode current collector has drilled holes for passive air breathing. In order to ensure feasibility in the present concept a 3-cell prototype DMFC module with lightweight disc type current collectors is designed and constructed. Experiments were conducted to measure the cell performance. The results show that the highest cell power output is 54.88 mW·cmand successfully demonstrate the feasibility of this novel design. OPEN ACCESSEnergies 2014, 7 3137

show abstract

Micro-electro-mechanical systems (MEMS)-based micro-scale direct methanol fuel cell development

Cited by 141 publications

References 38 publications

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

Enhanced performance of a silicon microfabricated direct methanol fuel cell with PtRu catalysts supported on few-walled carbon nanotubes

Development of a Direct Methanol Fuel Cell with Lightweight Disc Type Current Collectors

Contact Info

Product

Resources

About