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Andreas Züttel

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Publications associées (105)

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Engineering long-term stability into perovskite solar cells via application of a multi-functional TFSI-based ionic liquid

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Rosario Scopelliti, Andreas Züttel, Farzaneh Fadaei Tirani, Zhaofu Fei, Yi Zhang, Hiroyuki Kanda, Bin Ding, Wen Luo, Bing Zhang

Organic-inorganic metal-halide perovskite solar cells (PSCs) have achieved a certified power-conversion efficiency (PCE) of 25.5%. However, long-term stability and air stability of the PSCs are still major concerns and hamper commercialization. Herein, we ...

2021

Surface Oxygenate Species on TiC Reinforce Cobalt-Catalyzed Fischer-Tropsch Synthesis

Andreas Züttel, Wen Luo

Carbide-supported metal catalysts attract extensive research interests owing to the special properties of metal carbide and the interactions between metals and the carbide supports. While surface oxide species are inevitable in carbide materials, their rol ...

AMER CHEMICAL SOC2021

Characteristics and properties of nano-LiCoO2 synthesized by pre-organized single source precursors: Li-ion diffusivity, electrochemistry and biological assessment

Andreas Züttel, Nam Hee Kwon, Mariana Spodaryk

Background: LiCoO2 is one of the most used cathode materials in Li-ion batteries. Its conventional synthesis requires high temperature (>800 degrees C) and long heating time (>24 h) to obtain the micronscale rhombohedral layered high-temperature phase of L ...

2017

Complex hydrides for CO2 reduction

Andreas Züttel

Fossil fuels consumption is not expected to decrease significantly in the next decade, driving the atmospheric carbon dioxide concentration upward. Tremendous efforts have been made in the field of carbon capture with the development of porous material ads ...

SPRINGER HEIDELBERG2022

Combined hydrogen storage - compression system for the filling of high pressure hydrogen tanks

Andreas Züttel, Noris André Gallandat

The present relates to a combined hydrogen storage-compression unit suitable for the filling of high-pressure (350 bar and beyond) hydrogen vessels. It comprises a containment vessel filled with a hydrogen storage alloy, a heating system, a cooling system ...

2020

Graphene membranes with pyridinic nitrogen at pore edges for high-performance CO2 capture

Andreas Züttel, Kumar Varoon Agrawal, Luis Francisco Villalobos Vazquez de la Parra, Shiqi Huang, Liping Zhong, Heng-Yu Chi, Shaoxian Li, Kuang-Jung Hsu, Marina Micari, Shuqing Song, Xuekui Duan

Membranes based on a porous two-dimensional selective layer offer the potential to achieve exceptional performance to improve energy efficiency and reduce the cost for carbon capture. So far, separation from two-dimensional pores has exploited differences ...

Nature Portfolio2024

Development of Ti-Zr-Mn based AB 2 type metal hydrides alloys for an 865 bar two-stage hydrogen compressor

Akhil Varma Penmathsa, Andreas Züttel

This study reports the development of a new Ti-Zr-Mn-based AB 2 type hydrogen storage alloys for a two-stage metal hydride hydrogen compressor (MHHC). The hydrogen storage alloys are designed to compress hydrogen from 35 to 865 bar within a temperature dif ...

Pergamon-Elsevier Science Ltd2024

Tandem effect of Ag@C@Cu catalysts enhances ethanol selectivity for electrochemical CO2 reduction in flow reactors

Andreas Züttel, Wen Luo, Liping Zhong, Thi Ha My Pham, Mo Li, Jie Zhang, Youngdon Ko, Cedric David Koolen

CO-selective metals (e.g., Ag) on Cu catalysts improve the selec-tivity of multi-carbon (C2+) products in electrochemical CO2 reduc-tion. However, the origin of the improvement remains unclear due to the convolution of tandem and interface effects. Here, A ...

ELSEVIER2022

Complex and liquid hydrides for energy storage

Andreas Züttel, Elsa Callini

The research on complex hydrides for hydrogen storage was initiated by the discovery of Ti as a hydrogen sorption catalyst in NaAlH4 by Boris Bogdanovic in 1996. A large number of new complex hydride materials in various forms and combinations have been sy ...

Springer2016

Nanostructured materials for solid-state hydrogen storage: A review of the achievement of COST Action MP1103

Andreas Züttel, Elsa Callini

In the framework of the European Cooperation in Science and Technology (COST) Action MP1103 Nanostructured Materials for Solid-State Hydrogen Storage were synthesized, characterized and modeled. This Action dealt with the state of the art of energy storage ...

Pergamon-Elsevier Science Ltd2016

Synergistic Cu/CeO2 carbon nanofiber catalysts for efficient CO2 electroreduction

Andreas Züttel, Wen Luo, Jie Zhang

The electrochemical reduction of carbon dioxide (CO2RR) has attracted enormous interest because of the energy crisis and climate change; however, more efficient catalysts are required for practical applications. Herein, we present electrospinning as a faci ...

Elsevier2020

Reactivity enhancement of oxide skins in reversible Ti-doped NaAlH4

Andreas Züttel

The reversibility of hydrogen sorption in complex hydrides has only been shown unambiguously for NaAlH4 doped with transition metal compounds. Despite a multitude of investigations of the effect of the added catalyst on the hydrogen sorption kinetics of Na ...

Amer Inst Physics2014

Deep Eutectic Solvents Formed by Complex Hydrides: A New Class of Hydrogen‐Rich Liquid

Andreas Züttel, Loris Giovanni Lombardo, Thi Ha My Pham

Deep eutectic solvents (DESs) are novel mixtures that exhibit a significant depression in melting points compared to their individual components. This work finds that combining tetrabutylammonium borohydride (TBABH) with ammonia borane (AB) yields new, sta ...

Wiley2025

Photocatalytic Hydrogen Generation from a Visible-Light-Responsive Metal–Organic Framework System: Stability versus Activity of Molybdenum Sulfide Cocatalysts

Berend Smit, Andreas Züttel, Kyriakos Stylianou, Wen Luo, Ngoc Tú Nguyên, Daniele Ongari, Stavroula Kampouri, Bardiya Valizadeh, Ophélie Marie Planes

We report the use of two earth abundant molybdenum sulfide-based cocatalysts, Mo(3)S(13)(2-)clusters and 1T-MoS2 nanoparticles (NPs), in combination with the visible-light active metal-organic framework (MOF) MIL-125-NH2 for the photocatalytic generation o ...

2018

The role of MgB12H12 in the hydrogen desorption process of Mg(BH4)(2)

Andreas Züttel

The presence of MgB12H12 has often been considered as the major obstacle for the reversible hydrogen storage in Mg(BH4)(2). This communication provides evidence that the MgB12H12 phase (or B12H12 monomer) does not exist in the decomposition products ...

Royal Society of Chemistry2015

Hydrogen storage and electrochemical properties of LaNi5-xCux hydride-forming alloys

Andreas Züttel, Natalia Gasilova, Mariana Spodaryk

LaNi5-type alloys are commercial materials for the negative electrode in Ni-MH rechargeable batteries. Partial substitution of La by mischmetal (Mm) and of Ni by elements like Co, Al, and Mn significantly improve the cycle stability and high-rate discharge ...

ELSEVIER SCIENCE SA2019

Functionalized Phenyl Methanaminium Salts Provide Highly Stable Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Andreas Züttel, Liping Zhong, Xiaoxin Gao

One of the leading approaches to enhancing the performance and stability of perovskite solar cells (PSCs) involves passivating the perovskite surface and grain boundaries with large ammonium salts. Here, we report the synthesis of furan-, thiophene-, and s ...

2025

Hydrogen storage material

Andreas Züttel, Heena Yang

The present relates to a carbon material having a 3D structure and made of graphene oxide and carbon nanotubes, characterized in that the 3D structure consists in that the carbon nanotubes are located with some agglomeration between the graphene oxide laye ...

2019

Composite membranes for alkaline electrolysis based on polysulfone and mineral fillers

Andreas Züttel

Mineral-based membranes for high temperature alkaline electrolysis were developed by a phase inversion process with polysulfone as binder. The long-term stability of new mineral fillers: wollastonite, forsterite and barite was assessed by 8000 h-long leach ...

Elsevier2015

Identifying Reaction Species by Evolutionary Fitting and Kinetic Analysis: An Example of CO2 Hydrogenation in DRIFTS

Andreas Züttel, Ligang Wang, Kun Zhao, Emanuele Moioli, Marco Calizzi

Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) investigations of molecules at the surface of catalysts exhibit a strong overlap of the adsorption peaks. Therefore, the investigation of the CO2 hydrogenation on a highly active catalyst ...

2019