Congratulations two Jia!!

Congratulations to Jia on her two recently published papers! Her review published in ChemSocRev covers the broad field of how defects in metal oxides play a role in the heterogeneous catalytic hydrogenation of CO2.
Her paper published in Avanced Science summarized her work on controlling the selectivity of CO and CH4 production from CO2 reduction by tuning the size of Pd nanoparticles supported on Nb2O5.

The full article can be read on the Advanced Science and ChemSocRev websites

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Gigaton CO2 Conversion

In this op-ed, Geoff outlines the roadmap to achieving CO2 utilization on a gigaton scale, detailing four missions: to utilize atmospheric CO2, recycle CO2 from combustion sources, prevent CO2 being released into the atmosphere, and boost CO2 sinks on the ocean and land.
A modular CO2 refinery developed by Ineratec is highlighted, enabling Lego like assembly of small to industrial scale CO2 refineries

The full article can be read here.

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H2 Storage in Liquid Organic Hydrogen Carriers

Despite hydrogen having the largest known gravimetric energy storage capacity (33kWh/kg), its storage requires prohibitively low temperatures or high pressures. In this op-ed, Geoff describes the use of liquid organic hydrogen carriers to effectively access hydrogen hydrogen storage.

The full article can be read here.

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In Flight and Fight

Transportation is well known to generate a large fraction of the world’s anthropogenic CO2, which consequently produces negative consequences for future transportation, specifically aviation. In this op-ed, Geoff highlights the effect of climate change on aviation, including intensification of clear air turbulence, rising sea levels around coastal airports, and more frequent storm surges.

The full article can be read here.

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Drop-in Solar Fuels from CO2 and H2O: Performance Indicators

In this op-ed, Geoff describes the four performance indicators of CO2 reduction technologies:
product selectivity, material stability, mass conversion, and solar-to-fuel energy efficiency. Alone, these indicators may be misleading, but Geoff highlights a report by Steinfeld’s group which reported all four values in a solar reactor utilizing ceria catalyst.

The full article can be read here.

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Methanol Then and Now

Geoff’s latest op-ed details the history of methanol synthesis from the pyrolysis of wood in ancient egypt to the current state of the art Cu/ZnO and Cu/ZrO2 catalysts.

The full article can be read here.

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Turning Down the Heat

Thermally splitting of water typically requires temperatures around 1500°C. In this op-ed, Geoff discusses the case of Cu@TiO2 as a photothermally driven water splitting catalyst operating under 1 sun illumination and under 150°C.
The key to this approach is a two step reduction and oxidation cycle in a low pO2 environment.

The full article can be read on the Advanced Science News website.

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CO2 Desalination

Concerns over the world’s supply of fresh water has been steadily growing and if not addressed, is expected to cost 6% of the world’s GDP by 2050. In this op-ed, Geoff describes how brine saturated with CO2 will crystallize as CO2@H2O clathrate hydrates separately from the salt at high pressure and low temperature.

This approach tackles two problems simultaneously as a way to utilize CO2 and desalinate water.

The full article can be read on the here.

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Decarbonizing Natural Gas: CH4 Fuel without CO2

Can natural gas be used as a source of energy without producing CO2? In an op-ed by Geoff, the pyrolysis of CH4 to C + 2H2 is proposed as promising way to effectively utilize CH4. The process can be driven photothermally, producing carbon, with many useful applications and energy rich H2.

The full article can be read on the here.

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Does the $20 Million Carbon XPRIZE Exclude Solar Technologies?

In an article by Prof. Steinfeld and Prof. Stechel, they point out the rules set for the Carbon XPRIZE do not facilitate the use of solar energy as the sole source of energy, and may actually promote technologies that produce more CO2 equivalents than it would consume. Modifications to the prize’s guidelines are thus brought up and discussed.

The full article can be read here.

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