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Andreas Züttel

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Publications associées (108)

Graphene nanoplatelets promoted CoO-based catalyst for low temperature CO2 methanation reaction

Thi Ha My Pham, Andreas Züttel, Youngdon Ko, Liping Zhong

Methanation of CO2 is an important reaction for reducing CO2 emissions in a power-to-gas system. Compared to cobalt supported on gamma-Al2O3, cobalt supported on graphene nanoplatelets (GNPs) showed significantly better performance for CO2 methanation. Cob ...

FRONTIERS MEDIA SA2023

Nanoscale engineering of solid-state materials for boosting hydrogen storage

Andreas Züttel

The development of novel materials capable of securely storing hydrogen at high volumetric and gravimetric densities is a requirement for the wide-scale usage of hydrogen as an energy carrier. In recent years, great efforts via nanoscale tuning and designi ...

Royal Society of Chemistry2023

Drastic influence of substituent position on orientation of 2D layers enables efficient and stable 3D/2D perovskite solar cells

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Andreas Züttel, Hiroyuki Kanda, Liping Zhong, Ümmügülsüm Günes

The lack of long-term stability and reproducibility of perovskite solar cells (PSCs) is the main roadblock preventing their successful commercialization. 3D/2D PSCs are one of the most prominent ways to address these issues. Various salts that are mostly b ...

CELL PRESS2023

Low-temperature non-equilibrium synthesis of anisotropic multimetallic nanosurface alloys for electrochemical CO2 reduction

Emad Oveisi, Andreas Züttel, Jie Zhang, Mo Li, Cedric David Koolen

Multimetallic nanoparticles are of interest as functional materials due to their highly tunable properties. However, synthesizing congruent mixtures of immiscible components is limited by the need for high-temperature procedures followed by rapid quenching ...

Springernature2023

Elucidating the Mechanism of Fe Incorporation in In Situ Synthesized Co-Fe Oxygen-Evolving Nanocatalysts

Thi Ha My Pham, Andreas Züttel, Vasiliki Tileli, Tzu-Hsien Shen, Youngdon Ko, Liping Zhong

Ni- and Co-based catalysts with added Fe demonstrate promising activity in the oxygen evolution reaction (OER) during alkaline water electrolysis, with the presence of Fe in a certain quantity being crucial for their enhanced performance. The mode of incor ...

Amer Chemical Soc2023

Zinc carboxylate optimization strategy for extending Al-air battery system's lifetime

Thi Ha My Pham, Andreas Züttel, Liping Zhong, Manhui Wei

Although Al-air batteries are expected to be the candidates for energy conversion systems in renewable energy market due to the higher energy density, richer reserves, and lighter mass of Al metal, the anode self-discharge is seen as a notorious issue that ...

ELSEVIER SCI LTD2023

High-Throughput Sizing, Counting, and Elemental Analysis of Anisotropic Multimetallic Nanoparticles with Single-Particle Inductively Coupled Plasma Mass Spectrometry

Natalia Gasilova, Andreas Züttel, Wen Luo, Mo Li, Cedric David Koolen, Ayush Agarwal

Nanoparticles (NPs) have wide applications in physical and chemical processes, and their individual properties (e.g., shape, size, and composition) and ensemble properties (e.g., distribution and homogeneity) can significantly affect the performance. Howev ...

2022

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

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

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

High-efficiency perovskite photovoltaic modules achieved via cesium doping

Keith Gregory Brooks, Mohammad Khaja Nazeeruddin, Andreas Züttel, Yi Zhang, Mo Li, Jianxing Xia

Perovskite solar modules have been attracting increasing attention due to their market potential, yet publications concerned with theintrinsic scale-up potential of different perovskite compositions remain relatively scarce. On the other hand, while great ...

ELSEVIER SCIENCE SA2022

Selective Borohydride Oxidation Reaction on Nickel Catalyst with Anion and Cation Exchange Ionomer for High-Performance Direct Borohydride Fuel Cells

Thi Ha My Pham, Loris Giovanni Lombardo, Andreas Züttel, Heena Yang, Mo Li, Youngdon Ko

Direct borohydride fuel cells (DBFCs) operate with liquid H2O2 and a high-energy-density NaBH4 solution. A facile, direct synthesis method using a non-noble nickel catalyst for the DBFC anode is shown. The complex anode reaction with an anion-exchange iono ...

WILEY-V C H VERLAG GMBH2022

Effect of Co-Substitution on Hydrogen Absorption and Desorption Reactions of YMgNi4-Based Alloys

Loris Giovanni Lombardo, Andreas Züttel, Wen Luo, Heena Yang

YMgNi4-based alloys exhibit reversible hydrogen absorption and desorption reactions at near room temperature. Here, we report that Co-substituted YMgNi4-based alloys exhibited higher hydrogen contents and lower hydrogen absorption and desorption reaction p ...

AMER CHEMICAL SOC2022

Future Swiss Energy Economy: The Challenge of Storing Renewable Energy

Paul Joseph Dyson, Andreas Züttel, Noris André Gallandat

Fossil fuels and materials on Earth are a finite resource and the disposal of waste into the air, on land, and into water has an impact on our environment on a global level. Using Switzerland as an example, the energy demand and the technical challenges, a ...

FRONTIERS MEDIA SA2022

Halide exchange in the passivation of perovskite solar cells with functionalized ionic

Mohammad Khaja Nazeeruddin, Rosario Scopelliti, Paul Joseph Dyson, Zhaofu Fei, Farzaneh Fadaei Tirani, Andreas Züttel, Yi Zhang, Wen Luo, Hiroyuki Kanda, Mousa Abdulla M E Abuhelaiqa, Mo Li, Bin Ding

Applying additives to perovskite precursor solutions is an effective way to passivate perovskite films for the construction of perovskite solar cells (PSCs) with increased power-conversion efficiencies (PCEs) and enhanced stabilities. Ionic liquids (ILs) w ...

ELSEVIER2022

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

Near ambient-pressure X-ray photoelectron spectroscopy study of CO2 activation and hydrogenation on indium/copper surface

Andreas Züttel, Wen Luo, Mo Li

Indium-based catalysts exhibit excellent performance for CO2 hydrogenation to methanol, yet their nature and chemical evolution under reaction conditions are still elusive, thus hindering an understanding of their reaction mechanism. In this work, near amb ...

2021

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

Andreas Züttel, Wen Luo, Qian Jiang

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

Monocarborane cluster as a stable fluorine-free calcium battery electrolyte

Andreas Züttel, Kun Zhao

High-energy-density and low-cost calcium (Ca) batteries have been proposed as 'beyond-Li-ion' electrochemical energy storage devices. However, they have seen limited progress due to challenges associated with developing electrolytes showing reductive/oxida ...

Nature Portfolio2021

Hydrogen Storage by Reduction of CO2 to Synthetic Hydrocarbons

Andreas Züttel, Kun Zhao, Wen Luo, Noris André Gallandat, Jie Zhang

The storage of renewable energy is crucial for the substitution of fossil fuels with renewable energy. Hydrogen is the first step in the conversion of electricity from renewable sources to an energy carrier. However, hydrogen is technically and economicall ...

2021

Revealing the Surface Chemistry for CO2 Hydrogenation on Cu/CeO2–x Using Near-Ambient-Pressure X-ray Photoelectron Spectroscopy

Emad Oveisi, Young Jun Ko, Thi Ha My Pham, Andreas Züttel, Wen Luo, Mo Li

Catalytic reduction of CO2 to valuable products is an attractive route for CO2 recycling. CeO2-supported Cu catalysts have shown high activity and selectivity for the hydrogenation of CO2 to CO. To uncover the origin of their high performance, we prepared ...

ACS2021

Direct CO2 Capture and Reduction to High-End Chemicals with Tetraalkylammonium Borohydrides

Loris Giovanni Lombardo, Andreas Züttel, Kun Zhao, Heena Yang, Youngdon Ko

We demonstrate the ability of tetraalkylammonium borohydrides to capture large amounts of CO2, even at low CO2 concentrations, and reduce it to formate under ambient conditions. These materials show CO2 absorption capacities up to 30 mmolCO2 g(-1) at room ...

Wiley-VCH Verlag GmbH2021

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