Ammonia decomposition catalysis using non-stoichiometric lithium imide† †Electronic supplementary information (ESI) available: Data analysis procedures, data fitting procedures, X-ray diffraction pattern of Li2ND, details of reduction of LiND2 unit cell, POLARIS blank cell results, NPD patterns, exponential fits to QGA data and long-duration reaction data. See DOI: 10.1039/c5sc00205b

نویسندگان

  • Joshua W. Makepeace
  • Thomas J. Wood
  • Hazel M. A. Hunter
  • Martin O. Jones
  • William I. F. David
چکیده

We demonstrate that non-stoichiometric lithium imide is a highly active catalyst for the production of highpurity hydrogen from ammonia, with superior ammonia decomposition activity to a number of other catalyst materials. Neutron powder diffraction measurements reveal that the catalyst deviates from pure imide stoichiometry under ammonia flow, with active catalytic behaviour observed across a range of stoichiometry values near the imide. These measurements also show that hydrogen from the ammonia is exchanged with, and incorporated into, the bulk catalyst material, in a significant departure from existing ammonia decomposition catalysts. The efficacy of the lithium imide–amide system not only represents a more promising catalyst system, but also broadens the range of candidates for amide-based ammonia decomposition to include those that form imides.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Ammonia decomposition catalysis using non-stoichiometric lithium imide.

We demonstrate that non-stoichiometric lithium imide is a highly active catalyst for the production of high-purity hydrogen from ammonia, with superior ammonia decomposition activity to a number of other catalyst materials. Neutron powder diffraction measurements reveal that the catalyst deviates from pure imide stoichiometry under ammonia flow, with active catalytic behaviour observed across a...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 6  شماره 

صفحات  -

تاریخ انتشار 2015