Scientists harness solar power to produce clean hydrogen from biomass _ university of cambridge

A team of scientists at the University of Cambridge has developed a way of using solar power to generate a fuel that is both sustainable and relatively cheap to produce. How much do cleaning ladies make per hour It’s using natural light to generate hydrogen from biomass.

Our sunlight powered technology is exciting as it enables the production of clean hydrogen from unprocessed biomass under ambient conditions Dr Erwin Reisner

One of the challenges facing modern society is what it does with its waste products. How much does a maid cost per year As natural resources decline in abundance, using waste for energy is becoming more pressing for both governments and business.


Biomass has been a source of heat and energy since the beginning of recorded history. How to be a good cleaning lady The planet’s oil reserves are derived from ancient biomass which has been subjected to high pressures and temperatures over millions of years. Flylady cleaning schedule Lignocellulose is the main component of plant biomass and up to now its conversion into hydrogen has only been achieved through a gasification process which uses high temperatures to decompose it fully.

Dr Moritz Kuehnel, from the Department of Chemistry at the University of Cambridge, joint lead author on a new research paper published in Nature Energy, says:

“Lignocellulose is nature’s equivalent to armoured concrete. How much does a maid cost uk It consists of strong, highly crystalline cellulose fibres, that are interwoven with lignin and hemicellulose which act as a glue. How much to give cleaning lady for christmas This rigid structure has evolved to give plants and trees mechanical stability and protect them from degradation, and makes chemical utilisation of lignocellulose so challenging.”

The new technology relies on a simple photocatalytic conversion process. Sadie the cleaning lady karaoke Catalytic nanoparticles are added to alkaline water in which the biomass is suspended. How much do you tip your cleaning lady This is then placed in front of a light in the lab which mimics solar light. Cleaning maid clipart The solution is ideal for absorbing this light and converting the biomass into gaseous hydrogen which can then be collected from the headspace. How much do cleaning ladies charge The hydrogen is free of fuel-cell inhibitors, such as carbon monoxide, which allows it to be used for power.

The nanoparticle is able to absorb energy from solar light and use it to undertake complex chemical reactions. How much does a house cleaning service cost In this case, it rearranges the atoms in the water and biomass to form hydrogen fuel and other organic chemicals, such as formic acid and carbonate.

Joint lead author, Dr David Wakerley, also of the Department of Chemistry, says:

“There’s a lot of chemical energy stored in raw biomass, but it’s unrefined, so you can’t expect it to work in complicated machinery, such as a car engine. Funny cleaning lady pictures Our system is able to convert the long, messy structures that make up biomass into hydrogen gas, which is much more useful. The cleaning lady from family guy We have specifically designed a combination of catalyst and solution that allows this transformation to occur using sunlight as a source of energy. Another name for cleaning lady With this in place we can simply add organic matter to the system and then, provided it’s a sunny day, produce hydrogen fuel.”

The team used different types of biomass in their experiments. Do you tip maids at home Pieces of wood, paper and leaves were placed in test tubes and exposed to solar light. Office cleaner and tea lady job description The biomass didn’t require any processing beforehand.

The technology was developed in the Christian Doppler Laboratory for Sustainable SynGas Chemistry at the University of Cambridge. Molly maid cleaning tips The head of the laboratory, Dr. Flylady spring cleaning checklist Erwin Reisner, adds:

“Our sunlight-powered technology is exciting as it enables the production of clean hydrogen from unprocessed biomass under ambient conditions. How much do you give your cleaning lady for christmas We see it as a new and viable alternative to high temperature gasification and other renewable means of hydrogen production.

Future development can be envisioned at any scale, from small scale devices for off-grid applications to industrial-scale plants, and we are currently exploring a range of potential commercial options.”

With the help of Cambridge Enterprise, the commercialisation arm of the University, a UK patent application has been filed and talks are under way with a potential commercial partner.

David Wakerley et al: Solar-driven reforming of lignocellulose to H2 with a CdS/CdOx photocatalyst

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