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Sophia Haussener

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Related publications (135)

Reliable Performance Characterization of Mediated Photocatalytic Water-Splitting Half Reactions

Photocatalytic approaches using two sets of semiconductor particles and a pair of redox shuttle mediators are considered as a safe and economic solution for solar water splitting. Here, we report on accurate experimental characterization techniques for pho ...

Wiley-V C H Verlag Gmbh2017

Degradation in photoelectrochemical devices: Review with an illustrative case study

Sophia Haussener, Fredy Intelligent Nandjou Dongmeza

The durability, reliability, and robustness of photoelectrochemical (PEC) devices are key factors for advancing the practical large-scale implementation of cost-competitive solar fuel production. We review the known degradation mechanisms occurring in wate ...

Iop Publishing Ltd2017

Modelling of Solar Thermochemical Reaction Systems

Sophia Haussener

This article reviews the progress, challenges and opportunities in numerical modelling of thermal transport, thermochemical reactions and thermomechanics in high-temperature solar thermochemical systems. Continuum-scale models are presented in mathematical ...

Pergamon-Elsevier Science Ltd2017

Techno-economic modeling and optimization of solar-driven high-temperature electrolysis systems

Sophia Haussener, Meng Lin

We present a techno-economic analysis of solar-driven hightemperature electrolysis systems used for the production of hydrogen and synthesis gas. We consider different strategies for the incorporation of solar energy, distinguished by the use of differing ...

Pergamon-Elsevier Science Ltd2017

High-flux optical systems for solar thermochemistry

Sophia Haussener, Gaël Jean Clément Levêque

High-flux optical systems (HFOSs) are optical concentrators used to increase the radiative flux of the natural terrestrial solar irradiation. High radiative flux concentration leads to high energy density in solar receivers which allow to obtain high tempe ...

2017

Numerical Quantification of Coupling Effects for Radiation-Conduction Heat Transfer in Participating Macroporous Media: Investigation of a Model Geometry

Sophia Haussener, David Yann Samuel Perraudin

Radiative-conductive heat transfer in porous media is usually investigated by decoupling the heat transfer modes and solving the volume-averaged continuum equations using effective transport properties. However, both modes are naturally coupled and couplin ...

Elsevier2017

Tomography-based radiative characterisation of decomposing carbonaceous heat shield materials

Pénélope Leyland, Sophia Haussener, Nikhil Banerji

This work evaluates the changes in radiative properties of two decomposing carbonaceous porous materials, each composed of two semitransparent, homogeneous and isotropic phases. The understanding of the complex dependence of macroscopic optical behaviour o ...

Pergamon-Elsevier Science Ltd2017

Mass transport aspects of electrochemical solar-hydrogen generation

Sophia Haussener, Seyyed Mohammad Hosseini Hashemi, Miguel Antonio Modestino

The conception of practical solar-hydrogen generators requires the implementation of engineering design principles that allow photo-electrochemical material systems to operate efficiently, continuously and stably over their lifetime. At the heart of these ...

Royal Soc Chemistry2016

Minimization of Ionic Transport Resistance in Porous Monoliths for Application in Integrated Solar Water Splitting Devices

Sophia Haussener

Monolithic solar water splitting devices consist of photovoltaic materials integrated with electrocatalysts and produce solar hydrogen by water splitting upon solar illumination in one device. Upscaling of monolithic solar water splitting devices is obstru ...

American Chemical Society2016

Modeling, Simulation, and Implementation of Solar-Driven Water-Splitting Devices

Sophia Haussener, Miguel Antonio Modestino, Rui Liu, Ke Sun

An integrated cell for the solar-driven splitting of water consists of multiple functional components and couples various photoelectrochemical (PEC) processes at different length and time scales. The overall solar-to-hydrogen (STH) conversion efficiency of ...

Wiley-VCH Verlag GmbH2016

Early-stage oxidation behavior at high temperatures of SiSiC cellular architectures in a porous burner

Sophia Haussener, Ehsan Rezaei, Alberto Ortona

Early stage oxidation behavior of SiSiC cellular lattices with different cell types was studied at 1400 degrees C in two different environments: a porous burner and an electric furnace with stagnant air. Oxidation and silicon alloy bead formation were obse ...

Elsevier2016

Utilizing modeling, experiments, and statistics for the analysis of water-splitting photoelectrodes

Yannick Kenneth Gaudy, Sophia Haussener

A multi-physics model of a planar photoelectrochemical water-splitting device was developed, validated and used to identify and quantify the most significant materials-related bottlenecks in photoelectrochemical device performance. The model accounted for ...

Royal Society of Chemistry2016

Combined Experimental-Numerical Analysis of Transient Phenomena in a Photoelectrochemical Water Splitting Cell

Sophia Haussener, Mikaël Dumortier

A combined experimental-numerical approach was used to study transient phenomena occurring in a photoelectrochemical cell using a membrane-separated porous TiO2-based photoanode and a dark Pt-based cathode. The effects of three parameters (pH in the anodic ...

American Chemical Society2016

Experimental and Numerical Characterization of a New 45 kWel Multisource High-Flux Solar Simulator

Sophia Haussener, Gaël Jean Clément Levêque

The performance of a new high-flux solar simulator consisting of 18 × 2.5 kWel radiation modules has been evaluated. Grayscale images of the radiative flux distribution at the focus are acquired for each module individually using a water-cooled Lambertian ...

Optical Society of America2016

Integrated Photo-Electrochemical Solar Fuel Generators under Concentrated Irradiation- Part I: 2-D Non-Isothermal Multiphysics Modelling

Sophia Haussener, Saurabh Yuvraj Tembhurne

We investigate the direct conversion of solar energy and water into a storable fuel via integrated photo-electrochemical (IPEC) devices. Here we focus particularly on a device design which uses concentrated solar irradiation to reduce the use of rare and e ...

Electrochemical Society2016

Modeling of concurrent CO2 and water splitting by practical photoelectrochemical devices

Sophia Haussener, Ronald Ramiro Gutierrez Perez

Concurrent solar generation of hydrogen and CO through photoelectrochemical (PEC) water and CO2 electrolysis, and the subsequent use of the product gas mixture in conventional Fischer-Tropsch processes, has the potential to provide a flexible pathway for d ...

Electrochemical Soc Inc2016

An Integrated Device View on Photoelectrochemical Solar-Hydrogen Generation

Sophia Haussener, Miguel Antonio Modestino

Devices that directly capture and store solar energy have the potential to significantly increase the share of energy from intermittent renewable sources. Photo-electrochemical solar-hydrogen generators could become an important contributor, as these devic ...

Annual Reviews2015

Design guidelines for concentrated photo-electrochemical water splitting devices based on energy and greenhouse gas yield ratios

Sophia Haussener, Mikaël Dumortier

Device and system design choices for solar energy conversion and storage approaches require holistic design guidelines which simultaneously respect and optimize technical, economic, sustainability, and operating time constraints. We developed a simulation ...

2015

Holistic design guidelines for solar hydrogen production by photo-electrochemical routes

Sophia Haussener, Saurabh Yuvraj Tembhurne, Mikaël Dumortier

2015

Optical Design of Multisource High-Flux Solar Simulators

Sophia Haussener

We present a systematic approach to the design of a set of high-flux solar simulators (HFSSs) for solar thermal, thermochemical, and materials research. The generic simulator concept consists of an array of identical radiation modules arranged in concentri ...

American Society of Mechanical Engineers2015

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