Selective and Efficient H2 Evolution Upon NH3BH3 Hydrolysis at Subzero Temperatures

Qing Zhang,Chen Fang,Yanlan Wang,Xiang Liu

iScience（2024）SCI 2区

China Three Gorges Univ

Cited 5|Views12

Abstract

In the winter months, the temperature in most of the Earth stays below 0 degrees C; the average temperature in winter at the South Pole is about -60 degrees C. Therefore, it is urgent to develop efficient catalytic systems for selective and efficient H2 evolution upon NH3BH3 hydrolysis at subzero temperatures. For solving the freezing issue of water at below 0 degrees C, herein, we have employed a facile and surfactant -free approach to synthesize M-Pt/C nanocomposites (M = Pd, Rh, Ru, Ni, Cu, or Fe), by the alloying of commercial Pt/ C with Pd, Rh, Ru, Cu, Ni, or Fe for selective and efficient H2 evolution upon NH3BH3 hydrolysis in saline solution at below 0 degrees C, even at -15 degrees C. In addition, NH3BH3 hydrolysis over Pd-Pt/C in the saturated NaCl solution is utilized not only for safe hydrogen production but also for its in situ hydrogenation reduction in organic chemistry, which could avoid using dangerous hydrogen cylinders.

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Electrochemistry,Applied sciences

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