Description
Poster Session and Lunch
Ms
Xiaojin Zhang
(Technology Assessment group, Paul Scherrer Institute, CH 5232 Villigen PSI)
04/11/2014, 12:00
The future Swiss electricity supply system is expected to rely strongly on stochastic renewable generation such as photovoltaic and wind power. As a consequence, more and more flexibility is required and storage technologies will play a vital role in the integrated energy systems of the future. Under SCCER-Storage Work Package (WP) 5.1, integrated assessment for various storage technologies...
Dr
Alexander Rudnev
(University of Bern)
04/11/2014, 12:00
Electrocatalytic conversion of CO2 into gaseous and liquid fuels has a great potential. However, significant conceptual and technological advances are still needed to make this process economically viable. Most studies on CO2 electroreduction were carried out using aqueous electrolytes. The solubility of CO2 in water is rather low, which leads to an undesirably low rate of mass transfer to the...
Ms
Annegret Stephan
(ETH Zurich)
04/11/2014, 12:00
Lithium-ion battery technology is assumed to play an important role for future energy and transportation systems. Thus, industry, academia and policy makers aim at accelerating technological progress in this field. For the progress of a technology, knowledge development and diffusion plays an important role. Lithium-ion battery technology can be conceptualized as a complex product consisting...
Dr
David Parra
(Energy Group, Institute of Environmental Sciences, University of Geneva)
04/11/2014, 12:00
The objective of this research (conducted in WP5 of SCCER-Storage) is to develop a uniform techno-economic and environmental assessment method for electrical and thermal storage. This assessment is intrinsically flexible because it can be applied to different energy storage (ES) technologies for both heat and electricity, for different applications and sectors. As shown in Figure 1, the...
Dr
Zuleyha Ozlem Kocabas Atakli
(Empa Materials Sciences and Technology, CH-8600 Dübendorf, Switzerland)
04/11/2014, 12:00
Bogdanovic [1] presented the Ti-catalyzed hydrogen sorption in NaAlH4. The mechanism of the catalysis remains unclear despite the large number of proposed models. We presented a completely symmetric mechanism where the catalyst had a well-defined function. Firstly, we focused exclusively on understanding the main intermediate steps in the dehydrogenation and rehydrogenation of MAlH4 and M3AlH6...
Mr
Motiar Rahaman
(PhD Student)
04/11/2014, 12:00
The efficient conversion of CO2 into hydrocarbon fuels has attracted great attention in recent years. Our present work relates to the optimization of Cu:Au catalyst for the electro-reduction of CO2 in aqueous media. We synthesized various compositions of CuAu alloy nano-particles on vulcan carbon support by means of a single-step boro-hydride reduction process. The structure, composition and...
Dr
Emiliana Fabbri
(Paul Scherrer Institut)
04/11/2014, 12:00
Perovskites have recently shown the potentials of relatively high electrocatalytic activity towards oxygen reduction reaction (ORR)and oxygen evolution reaction (OER) in alkaline media.[1] Therefore they can represent potential low cost cathode and anode materials for low temperature alkaline fuel cell and electrolyzers, respectively.
The basic perovskite oxide structure can be represented...
Mrs
Thi Mien Trung Huynh
(Department of Chemistry and Biochemistry, University of Bern)
04/11/2014, 12:00
Dissociative adsorption and intercalation of hydrogen on/into metal surfaces is one of the most intensively studied processes in electro-catalysis.
In our current study we present combined electrochemical and in-situ STM work on the impact of the hydrogen evolution reaction (HER) onto the structure of a Cu(111) electrode surface exposed to a dilute (5 mM) sulfuric acid solution (Fig. 1)....
Mr
Michael Füeg
(University of Bern)
04/11/2014, 12:00
The discovery of electrogenic bacteria has been a big breakthrough in the research of new energy technologies paving the way for the development of microbial fuel cells (MFC) [1]. MFCs run without combustion and yield a higher efficiency as compared to combustion engines [2]. The bacteria of genus Geobacter sulfurreducens (Gs), which produce the highest current densities of known pure...
Dr
Veerabhadrarao Kaliginedi
(Department of chemistry and Biochemistry, University of Bern)
04/11/2014, 12:00
The bottom–up assembly of functional nanoscale architectures from molecular components at the electrode surface has attracted much interest in the advancement of nano-technology and surface science. Particularly, the chemistry of surface modification by self-assembled monolayers (SAM) or by layer-by-layer (LbL) growth are highly promising approaches to construct two-dimensional (2D) and...
Dr
Claire Villevieille
(Paul Scherrer Institut), Ms
Leonie Vogt
(Paul Scherrer Institut)
04/11/2014, 12:00
The need for higher specific energy batteries has led to the exploration of a range of conversion materials to be used as anodes in metal-ion batteries. Tin is one such promising novel anode material, which upon conversion to Li4.4Sn or Na3.75Sn has been found to show specific charge as high as 991 mAh/g and 846 mAh/g in lithium-ion and sodium-ion batteries, respectively [1, 2]. However, upon...
Mr
Jean-Pierre Brog
(University of Fribourg)
04/11/2014, 12:00
High-temperature lithium cobalt oxide (HT-LiCoO2) and its multimetallic derivatives containing nickel, manganese and aluminum (LiNi0.33Co0.33Mn0.33O2 and LiNi0.8Co0.15Al0.05O2) are currently the most used cathode materials for secondary lithium ion batteries (LIB). Its industrial synthesis requires rather long and high energy consuming heat treatments.[1] Those processes generally produce...
Prof.
Katharina Fromm
(University of Fribourg, Chemistry department), Dr
Nam Hee Kwon
(University of Fribourg, Chemistry department, Fribourg, Switzerland)
04/11/2014, 12:00
Advanced lithium ion batteries require higher safety, lower cost, longer durability and lower toxicity to apply larger applications [1].
LiMnPO4 can be an alternative cathode material due to its stable structure, low material cost, lower toxicity, high theoretical capacity (170 mAh/g), high operating voltage (4.1 V vs. Li) and good capacity retention. However, it suffers from poor electronic...
Mr
Sivarajakumar Maharajan
(University of Fribourg)
04/11/2014, 12:00
Sodium ion batteries are emerging to be future energy storage devices replacing its counterpart lithium ion batteries owing to its limited geographical constraint and thereby restricting to meet the global demands. Polyanion (PO43-, P2O74-) based cathode materials for sodium ion batteries are better candidates on grounds of cycle stability, thermal stability, safety, environmental friendliness...
Dr
Claire Villevieille
(Paul Scherrer Institute)
04/11/2014, 12:00
The development of Na-ion batteries is one of the most promising challenges of the decade. Although the fundamental principles of sodium based batteries are by principle identical to the lithium ones, the number of materials to be investigated is three times more than lithium according to the ICSD (inorganic crystallographic structure database) database. Therefore, unexplored reaction...
Dr
Abhijit Dutta
(Department of Chemistry and Bio-chemistry, University of Bern)
04/11/2014, 12:00
Synthesis of SnO2 nano particles on PVP functionalized reduced graphene oxide by self-capping function of hexanoate ligands: An application for electrochemical CO2 reduction in aqueous medium
Abhijit Dutta, Motiar Rahaman,Thomas Wandlowski, Peter Broekmann
Department of Chemistry and Bio-chemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
Abstract:
The increase of...
