Green synthesis of porous Ni-silicate catalyst for hydrogen generation via ammonia decomposition

Yun Ying Chen, Yi Chieh Chang, Wei Ying Hung, Hong Ping Lin, Hui Ya Shih, Wen An Xie, Shou Nan Li, Chun Han Hsu

研究成果: Article

摘要

A simple synthetic method without organic template is proposed for the synthesis of Ni-silicate. The resulting Ni-phyllosilicates are reconstructed by hydrothermal treatment to a porous structure with a high surface area (552 m2 g−1). Notably, the residual filtrate has a Ni2+ ion content of less than 0.1 ppm, and therefore satisfies the effluent standard in Taiwan (<1.0 ppm). As a result, it can be disposed of directly without the need for additional treatment. The effects of the pH value and hydrothermal treatment time on the structure, morphology, and surface area of the Ni-silicate composites have been investigated. When applied to hydrogen production, the mesoporous Ni-silicate shows a high catalytic capability (>99%) toward ammonia decomposition at a temperature of 400°C. Overall, the proposed synthetic method is facile and easily extendable to the production of other metal-silicate materials for hydrogen generation.

原文English
頁(從 - 到)9748-9756
頁數9
期刊International Journal of Energy Research
44
發行號12
DOIs
出版狀態Published - 2020 十月 10

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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