Highly active, robust and reusable micro-/mesoporous TiN/Si3N4 nanocomposite-based catalysts for clean energy: Understanding the key role of TiN nanoclusters and amorphous Si3N4 matrix in the performance of the catalyst system

Novel hydrogen chemisorption properties of amorphous ceramic compounds consisting of p-block elements: exploring Lewis acid–base Al–N pair sites formedin situwithin polymer-derived silicon–aluminum–nitrogen-based systems

“…There is still room for further study on optimizing hydrogen adsorption-desorption properties by controlling several material parameters such as the chemical composition and micro/ mesoporosity. Moreover, the unique H2-affinity of present SiAlN suggests other applications such as a novel non-oxide catalysis support which is recently highlighted for the impressive catalytic activities in hydrogenation of polymer derived transition metal/Si-based non-oxide ceramic nanocomposites of palladium silicide containing SiCN by Motz and Kempe et al, 20 and Ni-SiOC by Wilhelm and Rezwana et al, 21 or Pt-TiN/Si3N4 nanocomposites which in our very recent study 22 showed enhanced catalytic performance for dehydrogenation of sodium borohydride in water. Therefore, polymer-derived amorphous SiAlN ceramics are expected to have an impact on catalytic processes as a transition or noble metal-free advanced material and be of significant interest for clean energy applications such as advanced hydrogen production, storage and transportation systems.…”

“…Through a precursor route called polymer-derived ceramics (PDCs), [13][14][15][16][17][18][19][20][21][22] we recently demonstrated 19 the in situ growth of nanostructured AlN into a robust, protecting silicon carbide (SiC) matrix to form amorphous single-phase Si-Al-C-N ceramics at low temperatures and an AlN/SiC solid solution at high temperatures. By changing the nature of the atmosphere (ammonia instead of nitrogen) and considering the same commercially available poly(vinylmethyl-co-methyl)silazane (Durazane® 1800, silicon nitride precursor) chemically cross-linked with N,Ndimethylethylaminealane (EtNMe2$AlH3), we have designed a novel amorphous single-phase ceramic based on the Si-Al-N system at low temperatures.…”

Mechanistic Investigation of the Formation of Nickel Nanocrystallites Embedded in Amorphous Silicon Nitride Nanocomposites

“…Compared with M/SiCN nanocomposites, the design of M/Si-based nitride nanocomposites systems (i.e., M/Si 3 N 4 ) is much more challenging, whereas the silicon nitride matrix could contribute to the catalytic activity of the whole system [ 23 , 24 , 25 , 26 , 27 , 28 ]. This might be due to the systematically thermodynamically-controlled formation of metal nitride through the reaction of the metal cations chemically-bonded and/or physically-loaded to the polysilazane with ammonia (NH 3 ), which is used as extrinsic nitrogen source for the formation of Si 3 N 4 .…”

Titanium Nitride-Supported Platinum with Metal–Support Interaction for Boosting Photocatalytic H2 Evolution of Indium Sulfide

“…[23][24] Furthermore, TiN has been reported to be an effective support material for Pt minimization or replacement in the field of electrocatalysis. [25][26][27] As large numbers of efficient electrocatalysts including Pt are also utilized as efficient co-catalysts in photocatalysis, TiN has the potential for being an effective support for improving atom efficiency of Pt in photocatalytic hydrogen production.…”