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Student BIOS

DENG Ran

PhD Candidate in Environmental Science, Policy and Management

B.Eng in Polymer Materials & Engineering, Zhejiang University

Email: rdeng@ust.hk

Supervisor:  Prof. YEUNG King Lun       Co-Supervisor: Prof. KWAN Joseph

Research Topic  
The investigation of confined zeolite-PFSA "structure" composite membrane for self-humidifying PEMFC
Keywords  
Proton-exchange membrane fuel cell (PEMFC), self-humidifying, Zeolite-PFSA
Abstract  

Proton-exchange membrane fuel cells (PEMFCs) are consideredas a promising alternative for furture energy needs due to their high efficency, low pollutant emission and lightweight portable property. However, the proton conductivity of membrane decreases under low-humidity, as well as the ohmic resistance of the cell increases, leading to rapid decay in cell performance. The development of self-humidifying proton exchange membrane can not only address the problem of water lose, but also avoids unnecessary cost and self-energy consumptionof PEMFC. Therefore, a novel confined zeolite-PFSA “structure”composite membrane were constructed. The new structure design utilizes water adsorption capacity of zeolite, and forbids the formation discontinuous zeolite phase which may affect proton transport due to the aggregation of zeolite particles.

 

Journal Publication
Suo-Hong Zhi, Jun Xu, Ran Deng, Ling-Shu Wan, Zhi-Kang Xu (2014) Poly(vinylidene fluoride) ultrafiltration membranes containing hybrid silica nanoparticles: Preparation, characterization and performance. Polymer, 55, DOI: 10.1016/j.polymer.2013.12.035.
Suo-Hong Zhi, Ran Deng, Jun Xu, Ling-Shu Wan, Zhi-Kang Xu (2014) Composite membranes from polyacrylonitrile with poly(N,N-dimethylaminoethyl methacrylate)-grafted silica nanoparticles as additives. Reactive and Functional Polymers, waiting, DOI: 10.1016/j.reactfunctpolym.2014.09.004.
Presentations/Talks
Title Date Length Type and Location
Recent development of self-humidifying proton exchange membranes for fuel cell 2014-04-10 20min department seminar, HKUST
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