Hydrothermally stable ZnAl₂O₄ nanocrystals with controlled surface structures for the design of long-lasting and highly active/selective PdZn catalysts

Abstract

Synthesis of hydrothermally stable ZnAl2O4 nanocrystals with controlled surface structures and the design of long-lasting and highly active/selective PdZn catalysts.

Porous spinel-type transition metal oxide nanostructures as emergent electrocatalysts for oxygen reduction reactions

“…, rich active sites, p-type conductivity, optical transparency, magnetic properties, semiconductivity, multiple valence states of their oxides, and redox properties). 21–28 For the production cost, spinel-type TMO nanocatalysts are easily prepared from inexpensive and Earth-abundant precursors. 29–31 Moreover, spinel-type TMO nanocatalysts are easily stored and handled during preparation, making the production cycle more cost-effective relative to state-of-the-art noble metal catalysts.…”

“…, nanocubes and polyhedral), have been developed for ORRs. 21–27,32 Thus, spinel-type TMO nanocatalysts have attracted significant attention for various electrocatalytic applications. Mainly, ∼307 articles were published in the last 10 years and cited 10 387 times (33.8 citations per article, Fig.…”

“…[15][16][17][18][19][20] Unlike precious metals, spinel-type transition metal oxide (TMO) nanocatalysts with stoichiometric or non-stoichiometric compositions are highly promising for ORRs due to their unique physicochemical merits (i.e., rich active sites, p-type conductivity, optical transparency, magnetic properties, semiconductivity, multiple valence states of their oxides, and redox properties). [21][22][23][24][25][26][27][28] For the production cost, spinel-type TMO nanocatalysts are easily prepared from inexpensive and Earth-abundant precursors. [29][30][31] Moreover, spinel-type TMO nanocatalysts are easily stored and handled during preparation, making the production cycle more cost-effective relative to state-of-the-art noble metal catalysts.…”

Direct Transformation of Glycerol to Propanal using Zirconium Phosphate‐Supported Bimetallic Catalysts

“…[7,[9][10][11][12] Among them, one of the most promising approaches is the catalytic hydrogenolysis of glycerol into propanediols, such as 1,3-propanediol (1,3-PDO) and 1,2-propanediol (1,2-PDO). [13,14] It is worth noting that highly efficient and selective hydrogenolysis of glycerol to 1,2-PDO has been achieved on various catalytic systems. [7,[15][16][17][18][19][20] Although the dehydration of 1,2-PDO to propanal (PA) has also been studied using various types of heterogeneous catalysts, the catalytic activity and selectivity to PA still remains a huge challenge.…”

“…Accordingly, numerous studies have been performed to the transformation of glycerol by various catalytic processes, such as dehydration, oxidation, hydrogenolysis, reforming, acetalization, and esterification . Among them, one of the most promising approaches is the catalytic hydrogenolysis of glycerol into propanediols, such as 1,3‐propanediol (1,3‐PDO) and 1,2‐propanediol (1,2‐PDO) . It is worth noting that highly efficient and selective hydrogenolysis of glycerol to 1,2‐PDO has been achieved on various catalytic systems …”