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Testing Artificial Photosynthesis

By Guest PostJuly 3, 2013Scienceanode, artificial photosynthesis, atmospheric carbon dioxide, berkeley lab, caltech, camilo diaz botia, cathode, charge carriers, diesel, earth abundant elements, energy conversion, fossil fuel energy, gasoline, h2, hydrocarbon, hydrogen, jcap, jcap north, jcap south, joel ager, mean concentration, membrane cap, micro scale, microfluidic test bed, miguel modestino, o2, optimization, rachel segalman, rafael gomez sjoberg, sophia haussener

Berkeley Lab Researchers Develop Fully Integrated Microfluidic Test-bed for Solar-driven Electrochemical Energy Conversion Systems

With the daily mean concentrations of atmospheric carbon dioxide having reached 400 parts-per-million for the first time in human history, the need for carbon-neutral alternatives to fossil fuel energy has never been more compelling. With enough energy in one hour’s worth of global sunlight to meet all human needs for a year, solar technologies are an ideal solution. However, a major challenge is to develop efficient ways to convert solar energy into electrochemical energy on a massive-scale. A key to meeting this challenge may lie in the ability to test such energy conversion schemes on the micro-scale.

Berkeley Lab researchers, working at the Joint Center for Artificial Photosynthesis (JCAP), have developed the first fully integrated microfluidic test-bed for evaluating and optimizing solar-driven electrochemical energy conversion systems. This test-bed system has already been used to study schemes for photovoltaic electrolysis of water, and can be readily adapted to study proposed artificial photosynthesis and fuel cell technologies. (more…)

Advancing the Digital Humanities

By Guest PostNovember 4, 2012Educationafrican american literature, arizona, aurasma application, bryan carter, cable television, culture, devices, digital format, digital humanities, internet, ipads, iphones, jeremy patrick gesuale, ken mcallister, mobile network, music, o2, online course, phone calls, smartphone, social media, surfing, Technology, telegraph, uk, university, voicethreads, web

Bryan Carter, a UA assistant professor of Africana studies, is among faculty members in the arts and humanities more readily employing consumer-based technologies in educational, creative, interdisciplinary and engaging ways.

Take a guess – what are the most common uses for devices like smartphones?

Earlier this year, the UK-based mobile network O2 reported that, on average, people use their smartphones to access the Internet, communicate via social media and listen to music. Other popular uses, as explained by an article in The Telegraph, include playing games and making phone calls. (more…)

Researchers Capture First-Ever Images of Atoms Moving in a Molecule

By Guest PostMarch 8, 2012Scienceanthony dichiara, atmospheric gases, atoms, atoms nuclei, cosmin blaga, diffraction pattern, electron, emily sistrunk, energy, femtoseconds, flash bulb, kaikai zhang, laser induced electron diffraction, lied, louis dimauro, molecular motion, molecule, n2, nitrogen, o2, ohio state university, oxygen, pierre agostini, quadrillionths of a second, quantum trajectory, quantum world, real time image, scattered electron signal, solid material, terry a miller, ultrafast camera, vibration

COLUMBUS, Ohio – Using a new ultrafast camera, researchers have recorded the first real-time image of two atoms vibrating in a molecule.

Key to the experiment, which appears in this week’s issue of the journal Nature, is the researchers’ use of the energy of a molecule’s own electron as a kind of “flash bulb” to illuminate the molecular motion. (more…)

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Testing Artificial Photosynthesis

Advancing the Digital Humanities

Researchers Capture First-Ever Images of Atoms Moving in a Molecule