Ultrafine
Pt Nanoclusters Confined in a Calixarene-Based
{Ni<sub>24</sub>} Coordination Cage for High-Efficient Hydrogen Evolution
Reaction
Shentang Wang
Xiaohui Gao
Xinxin Hang
Xiaofei Zhu
Haitao Han
Wuping Liao
Wei Chen
10.1021/jacs.6b11218.s001
https://acs.figshare.com/articles/journal_contribution/Ultrafine_Pt_Nanoclusters_Confined_in_a_Calixarene-Based_Ni_sub_24_sub_Coordination_Cage_for_High-Efficient_Hydrogen_Evolution_Reaction/4300400
To obtain stable
and ultrafine Pt nanoclusters, a trigonal prismatic
coordination cage with the sulfur atoms on the edges was solvothermally
synthesized to confine them. In the structure of {Ni<sub>24</sub>(TC4A-SO<sub>2</sub>)<sub>6</sub>(TDC)<sub>12</sub> (H<sub>2</sub>O)<sub>6</sub>} (H<sub>4</sub>TC4A-SO<sub>2</sub> = <i>p-tert</i>-butylsulfonylcalix[4]arene;
H<sub>2</sub>TDC = 2,5-thiophenedicarboxylic acid), three Ni<sub>4</sub>-(TC4A-SO<sub>2</sub>) SBUs are bridged by three TDC ligands into
a triangle and two such triangles are pillared by three pairs of TDC
ligands to form a trigonal prism. The cage cavity has 12 sulfur atoms
on the surface. Because of the porous structure and strong covalent
interaction between metal and sulfur, ultrafine Pt nanoclusters composed
of less than ∼18 Pt atoms can be facilely confined in the present
trigonal prismatic cage (<b>Pt@CIAC-121</b>). The as-synthesized
Pt NCs exhibit higher electrocatalytic activity than commercial Pt/C
toward hydrogen evolution reaction.
2016-12-08 00:00:00
TDC ligands
High-Efficient Hydrogen Evolution Reaction
prismatic coordination cage
H 4 TC 4A 2
hydrogen evolution reaction
as-synthesized Pt NCs exhibit
12 sulfur atoms
TC 4A 2
H 2 O
Ultrafine Pt Nanoclusters Confined
SBU
Ni 24
ultrafine Pt nanoclusters