Breakthrough in Hydrogen Production: Researchers Develop Highly Efficient Nanocatalyst

Strategic Insights -

Researchers at Guilin University of Electronic Technology have made a significant discovery in the field of hydrogen production, developing a highly efficient nanocatalyst that can accelerate the hydrolysis of ammonia borane (AB, NH3BH3) into hydrogen. The new catalyst, made from cobalt-nickel layered double oxide (CoNi-LDO), has shown remarkable performance in terms of speed, activation energy, and activity. This breakthrough has the potential to transform the production of hydrogen, a clean and renewable energy source, and could have a significant impact on the energy sector.

Key Takeaways:

  • The researchers developed a cobalt-nickel layered double oxide (CoNi-LDO) catalyst with a sea urchin-like structure, which showed excellent performance in hydrolysis of ammonia borane (AB, NH3BH3).
  • The catalyst was prepared through the calcination of its corresponding layered double hydroxide (CoNi-LDH) and then loaded with ruthenium nanoparticles using chemical reduction.
  • The reduction method and the use of citric acid (CA) as an auxiliary reagent significantly affected the catalytic properties of the Ru/LDO catalyst.
  • The as-prepared Ru-CA/LDO-G catalyst exhibited a low activation energy (E-a = 25.94 kJ mol(-1)) and high activity (TOF = 501.4 mol(H2) mol(Ru)(-1) min(-1)) in hydrogen production.
  • The researchers found that the catalyst could complete the hydrolysis of AB in about 85 seconds at room temperature, making it a promising candidate for large-scale hydrogen production.

Statistics:

  • The catalyst showed a 25.94 kJ mol(-1) activation energy, indicating its high efficiency in hydrolysis.
  • The turnover frequency (TOF) of 501.4 mol(H2) mol(Ru)(-1) min(-1) is a significant improvement over previous catalysts.
  • The hydrolysis reaction was completed in about 85 seconds at room temperature, indicating the catalyst's fast reaction rate.
  • The study highlights the potential of the Ru/CoNi-LDO catalyst in the field of hydrogen evolution from hydrolysis of hydroborates like AB and NaBH4.

Sources:

  • Researchers at Guilin University of Electronic Technology Release New Data on Nanoparticles (Hydrogen Generation From Ammonia Borane Hydrolysis Catalyzed By Ruthenium Nanoparticles Supported On Co-ni Layered Double Oxides). Nanotechnology Weekly. May 3, 2021; p 4954.
  • Hailiang Chu, Xueying Qiu, Jiaxi Liu, Shujun Qiu, Pengru Huang, Yongjin Zou, Huanzhi Zhang, Fen Xu, and Lixian Sun. Hydrogen Generation From Ammonia Borane Hydrolysis Catalyzed By Ruthenium Nanoparticles Supported On Co-ni Layered Double Oxides. Sustainable Energy & Fuels, 2021.