I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
Sulfur control Preferential Oxidation Catalysis — a new catalytic solution…
BUSINESS NEWS
Chemical Engineering MagazineBusiness News
Plant Watch Perstorp will construct new plant for sodium formate…
TECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment

Chementator Briefs

By Edited by Gerald Ondrey |

Prev2 of 5Next
Use your ← → (arrow) keys to browse
Nitrogen fixation A team from South China University of Technology (Guangzhou, China; https//en.scut.edu.cn), led by professor Haihui Wang, has discovered that black phosphorus — phosphorus in its lowest reactivity, nontoxic form — is an excellent catalyst for the electro-reduction of nitrogen to ammonia. The team found that the zigzag arrangement in the phosphorus layers, in contrast to other layered or flat materials, provides ideal sites for nitrogen adsorption and the electronic structure at the edges was best suited for binding, activating and reducing nitrogen by a low-energy pathway. The team included the catalyst nanosheets in a carbon-fiber electrode for electrolysis. To provide a nitrogen supply, a hydrochloride electrolyte solution was saturated with nitrogen. On application of a voltage, the electrode readily and selectively produced ammonia from nitrogen. Wang says the layered black phosphorus even outperformed most nonmetallic and metal-based catalysts lately reported. A drawback of black phosphorus is that its performance declines in the long term due to oxidation, so it will be necessary to find ways of preventing degradation in the electrolyte, says the team.
Prev2 of 5Next
Use your ← → (arrow) keys to browse
Related Content
Chementator Briefs
Sulfur control Preferential Oxidation Catalysis — a new catalytic solution from Haldor Topsoe A/S (Lyngby, Denmark: www.topsoe.com) — has been…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Quadruple Sensor Lifetime with a Retractable Housing
Minimizing Explosion Risk Where Other Solutions Cannot
Minimizing Corrosion with Fast, Robust Gas Analysis
Lower Measurement Point Costs with Automatic pH Sensor Cleaning
Reduce the Risk of Corrosion in Fertilizer Production

View More

Live chat by BoldChat