Low-carbon (LE) technologies have a significant potential to reduce the total carbon emissions in China.

How the global distribution of vegetation stands dominated by arbuscular and ectomycorrhizal plants relate to principle aspects of belowground carbon accumulation processes?

Autopaghy is an intracellular degradation system which targets cytosolic components to lytic compartments for degradation and recycling of the building blocks of the cell.

Promotor: Prof.dr.ir. T.H. Oosterkamp, N. de Jonge

Promotor: W. Jiskoot, Co-promotor: H.A. Every

The Low Frequency Array enables studies of low-frequency carbon radio recombination lines with unprecedented sensitivity, spectral and spatial resolution.

In this thesis we have discussed several parameters that affect the electrochemical conversion of enviromentaly harmful molecules such as nitrates and carbon dioxide to more valuable and less deleterious compounds, in order to cast light onto the mechanism of the reaction to achieve an efficient and…

Metal complexes and 2D materials like graphene were combined to produce structures that can function as sensors.

Promotor: M.T.M. Koper, Co-promotors: A.I. Yanson, L.B.F. Juurlink

This thesis studied in depth the energy use and CO2 emissions of the industrial sector in China.

Has the industrial sector in China effectively been decarbonizing in recent years, across different regions and subsectors, and is it plausible that it will reduce its CO2 emissions in conformity with national and internationally pledged emission goals?

Rong Yuang, PhD candidate from the Institute of Environmental Sciences investigated the impact of the renewable energy expansion on China’s carbon emission. On 17 May, she will defend her thesis. China is investing heavily in the development of low-carbon electricity sources, like nuclear, hydro-,…

How will we generate energy without further contributing to global warming? Industrial ecologist René Kleijn tells about low-carbon energy in tv and radio show Focus, and in VPRO Magazine.

M.T.M. Koper, Co-promotor: D.G.H. Hetterscheid

The distinguished academic journal Science published an article about an important and extensive series of measurements made by the Centre for Isotope Research (CIO) of the University of Groningen. The measurements concern the dating of a lake bed sediment in the Suigetsu Lake in Japan.

This was the question Leiden researchers from the Institute of Environmental Sciences CML posed in an article published last week in the journal Resources, Conservation, Recycling

Leiden chemists have created a new ultrathin membrane only one molecule thick. The membrane can produce a hundred times more power from seawater than the best membranes used today. The researchers have published their findings in Nature Nanotechnology.

In 2015, Jorryt Matthee thought he discovered an extremely distant galaxy called CR7, which lacked elements heavier than helium. Three years later, he shows with measurements using the ALMA telescope that the galaxy does have carbon after all, and even in normal concentrations. The American Astronomical…

Although seen as the fastest and cheapest way to global climate protection, a uniform global carbon price would have major consequences for the economic competitiveness of countries. Hauke Ward, who recently joined Leiden University, showed in the journal Energy Economics that modern western countries…

How presence, abundance and enzymatic activities of AM and EM fungi differently affect soil carbon sequestration processes?

A new study from Leiden researchers shows that the carbon emissions of building materials are set to grow if we do not act rapidly. Even with known interventions implemented in concert, these emissions are much larger than the remaining 1.5 degree budget for building materials at today’s share, the…

Heterogeneous catalysis is essential to many industrial applications. These catalysts are often comprised of supported nanoparticles, which contain various different surface sites.

Twenty years from now, the world population is estimated to be around 8.7 billion people, compared to the current 7.3 billion. In combination with the improvements in living standards and the corresponding growth in consumption, this will result in an enormous increase in the demand for food, consumables,…

How soil microbial composition impacts structure and composition of the aboveground plant and animal communities?

In this study, we evaluated the influence of supercritical carbon dioxide (scCO2) spray drying conditions, in the absence of organic solvent, on the ability to produce dry protein/trehalose formulations at 1:10 and 1:4 (w/w) ratios.

Marc Koper’s research focuses on electrocatalysis and electrochemical surface science for sustainable energy and chemistry. Reactions of interest are the redox reactions of the oxygen/hydrogen cycle (water oxidation, hydrogen evolution), the carbon cycle (reduction of carbon dioxide, oxidation of small…

Two students from the Leiden-Delft MSc Industrial Ecology programme have made a carbon footprint calculator for the website www.doemaarduurzaam.nl; the website where the Dutch public broadcasting organisations collect everything broadcasted about sustainability. The carbon footprint calculator allows…

PhD Defence

The stratum corneum (SC) plays a fundamental role in the barrier function of the skin. The SC consists of corneocytes embedded in a lipid matrix.

Promotores: Prof.dr.G.R. de Snoo and Dr. R. Heijungs

A team of laboratory astrophysicists from Leiden University managed to make glycerol under conditions comparable to those in dark interstellar clouds. They allowed carbon monoxide ice to react with hydrogen atoms at minus 250 degrees Celsius. The researchers publish their findings in the Astrophysical…

Research at the Catalysis and Surface Chemistry group is comprised of the following research themes:

Lecture, Webinar

This thesis discusses the physical and chemical processes than influence the composition of forming planets.

On 19 February 2020, Richard Jiang defended his thesis '‘Greening’ the WTO Ban on China’s Export Duties'. The doctoral research was supervised by Prof. M.C.E.J. Bronckers.

This thesis examines the link between simple molecules and the underlying structure and chemistry within protoplanetary disks - the birthplaces of planets.

My work focuses on a class of astronomical objects called protoplanetary disks.

Twenty years from now, the world population is estimated to be around 9 billion people (now 7.8 billion). In combination with the improvements in living standards and the corresponding growth in consumption, this will result in an enormous increase in the demand for food, consumables, water and energy.…

How to bring together different footprints into an integrated family and what are the synergies? What are the roles of inventory analysis and characterization in measuring individual footprints and how these affect a footprint family? How to benchmark environmental footprints against related planetary…

PhD Defence

PhD Defence

Which traits and/or trade-offs determine benefits of being deciduous or evergreen?