In-situ synthesis of porous silica-ruthenium composite catalyst for hydrolysis of ammonia borane

Umegaki, Tetsuo1; Imai, Haruhiro1; Xu, Qiang2; Kojima, Yoshiyuki1

2024-07-01

10.1007/s10934-024-01652-2

JOURNAL OF POROUS MATERIALS   影响因子和分区

1380-2224

1573-4854

The present study reports in-situ synthesis of porous silica-ruthenium composite catalyst for hydrolysis of ammonia borane. The in-situ synthesized catalyst precursors were prepared via sol-gel based methods using surfactant micelles of cethyltrimethylammonium bromide (CTAB) to form well-ordered nanopores in the precursor particles. The precursors consisted of spherical particles with the diameter of ca. 20-60 nm and nanopores with the diameter of ca. 2-3 nm were included in the precursor particles. The specific surface areas and pore volumes decreased with increasing of ruthenium content, while their catalytic activity for hydrogen generation from aqueous ammonia borane solution was the same level regardless of the ruthenium contents. The catalytic activity was effectively improved via reflux procedure of the precursors through removing residual compound probably originated from CTAB with maintaining dispersion of the active ruthenium species after the procedure.

In-situ synthesis Porous silica-ruthenium composite catalyst Hydrolysis of ammonia borane Hydrogen evolution Reflux

SCI ; EI

英语

其他

Chemistry ; Materials Science

Chemistry, Applied ; Chemistry, Physical ; Materials Science, Multidisciplinary

WOS:001263319600001

SPRINGER

MATERIALS SCIENCE

Web of Science

1.Nihon Univ, Coll Sci & Technol, Dept Mat & Appl Chem, 1-8-14 Kanda Surugadai,Chiyoda Ku, Tokyo 1018308, Japan
2.Southern Univ Sci & Technol SUSTech, SUSTech Kyoto Univ Adv Energy Mat Joint Innovat La, Dept Chem, Dept Mat Sci & Engn,Shenzhen Key Lab Micro Nanopor, Shenzhen 518055, Peoples R China

Umegaki, Tetsuo,Imai, Haruhiro,Xu, Qiang,et al. In-situ synthesis of porous silica-ruthenium composite catalyst for hydrolysis of ammonia borane[J]. JOURNAL OF POROUS MATERIALS,2024.

Umegaki, Tetsuo,Imai, Haruhiro,Xu, Qiang,&Kojima, Yoshiyuki.(2024).In-situ synthesis of porous silica-ruthenium composite catalyst for hydrolysis of ammonia borane.JOURNAL OF POROUS MATERIALS.

Umegaki, Tetsuo,et al."In-situ synthesis of porous silica-ruthenium composite catalyst for hydrolysis of ammonia borane".JOURNAL OF POROUS MATERIALS (2024).