Journal ArticleDOI
Discovering Partially Charged Single-Atom Pt for Enhanced Anti-Markovnikov Alkene Hydrosilylation.
Yuanjun Chen,Shufang Ji,Wenming Sun,Wenxing Chen,Juncai Dong,Junfeng Wen,Jian Zhang,Zhi Li,Lirong Zheng,Chen Chen,Qing Peng,Dingsheng Wang,Yadong Li +12 more
TLDR
The fabrication of single-atom Pt1δ+/TiO2 catalyst accomplishes a reasonable use of Pt through recycling and maximum atom-utilized efficiency, indicating the potential to achieve a green hydrosilylation industry.Abstract:
The hydrosilylation reaction is one of the largest-scale application of homogeneous catalysis and is widely used to enable the commercial manufacture of silicon products. However, considerable issues including disposable platinum consumption, undesired side reactions and unacceptable catalyst residues still remain. Here, we synthesize a heterogeneous partially charged single-atom platinum supported on anatase TiO2 (Pt1δ+/TiO2) catalyst via an electrostatic-induction ion exchange and two-dimensional confinement strategy, which can catalyze hydrosilylation reaction with almost complete conversion and produce exclusive adduct. Density functional theory calculations reveal that unexpected property of Pt1δ+/TiO2 originates from atomic dispersion of active species and unique partially positive charge Ptδ+ electronic structure that conventional nanocatalysts do not possess. The fabrication of single-atom Pt1δ+/TiO2 catalyst accomplishes a reasonable use of Pt through recycling and maximum atom-utilized efficienc...read more
Citations
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Journal ArticleDOI
Well-Defined Materials for Heterogeneous Catalysis: From Nanoparticles to Isolated Single-Atom Sites.
TL;DR: The roles of nanoparticles and isolated single atom sites in catalytic reactions are surveyed and the challenges and opportunities of well-defined materials for catalyst development are highlighted, gaining a fundamental understanding of their active sites.
Journal ArticleDOI
Chemical Synthesis of Single Atomic Site Catalysts.
TL;DR: In this review, various synthetic strategies for the synthesis of SASC are summarized with concrete examples highlighting the key issues of the synthesis methods to stabilize single metal atoms on supports and to suppress their migration and agglomeration.
Journal ArticleDOI
Atomic site electrocatalysts for water splitting, oxygen reduction and selective oxidation.
TL;DR: This review presents a systematic review on the fabrication routes of ASCs followed by an overview of some new and effective characterization methods to precisely probe the atomic structure and discusses the challenges and opportunities on the further development of more selective, active, stable and less expensive ASCs.
Journal ArticleDOI
Modulating the local coordination environment of single-atom catalysts for enhanced catalytic performance
TL;DR: In this article, the characterization of the coordination environment, tailoring of the local coordination environment and their related adjustable catalytic performance are discussed. But the focus of this paper is on single-atom catalysts.
Journal ArticleDOI
Single platinum atoms embedded in nanoporous cobalt selenide as electrocatalyst for accelerating hydrogen evolution reaction
Kang Jiang,Boyang Liu,Min Luo,Shoucong Ning,Ming Peng,Yang Zhao,Ying-Rui Lu,Ting-Shan Chan,Frank M. F. de Groot,Yongwen Tan +9 more
TL;DR: Preparation of single-atom platinum on cobalt selenide as a high-performance hydrogen evolution electrocatalyst opens up further opportunities for local electronic structures tuning of electrocatalysts to effectively manipulate its catalytic properties by an atomic-level engineering strategy.
References
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Journal ArticleDOI
Single-atom catalysts: a new frontier in heterogeneous catalysis.
TL;DR: Recent advances in preparation, characterization, and catalytic performance of SACs are highlighted, with a focus on single atoms anchored to metal oxides, metal surfaces, and graphene, offering the potential for applications in a variety of industrial chemical reactions.
Journal ArticleDOI
Isolated Single Iron Atoms Anchored on N-Doped Porous Carbon as an Efficient Electrocatalyst for the Oxygen Reduction Reaction
Yuanjun Chen,Shufang Ji,Yang-Gang Wang,Juncai Dong,Wenxing Chen,Zhi Li,Rongan Shen,Lirong Zheng,Zhongbin Zhuang,Dingsheng Wang,Yadong Li +10 more
TL;DR: Experiments demonstrated that maintaining the Fe as isolated atoms and incorporating nitrogen was essential to deliver the high performance, and the high reactivity to the high efficiency of the single Fe atoms in transporting electrons to the adsorbed OH species.
Journal ArticleDOI
Photochemical route for synthesizing atomically dispersed palladium catalysts
Pengxin Liu,Yun Zhao,Ruixuan Qin,Shiguang Mo,Guangxu Chen,Lin Gu,Daniel M. Chevrier,Peng Zhang,Qing Guo,Zang Dandan,Binghui Wu,Gang Fu,Nanfeng Zheng +12 more
TL;DR: A photochemical strategy to fabricate a stable atomically dispersed palladium–titanium oxide catalyst (Pd1/TiO2) on ethylene glycolate–stabilized ultrathin TiO2 nanosheets containing Pd up to 1.5%.
Journal ArticleDOI
General synthesis and definitive structural identification of MN4C4 single-atom catalysts with tunable electrocatalytic activities
Huilong Fei,Juncai Dong,Yexin Feng,Christopher S. Allen,Chengzhang Wan,Boris Volosskiy,Mufan Li,Zipeng Zhao,Yiliu Wang,Hongtao Sun,Pengfei An,Wenxing Chen,Zhiying Guo,Chain Lee,Dongliang Chen,Imran Shakir,Mingjie Liu,Tiandou Hu,Yadong Li,Angus I. Kirkland,Xiangfeng Duan,Yu Huang +21 more
TL;DR: In this paper, a general approach to a series of monodispersed atomic transition metals (for example, Fe, Co, Ni) embedded in nitrogen-doped graphene with a common MN4C4 moiety, identified by systematic X-ray absorption fine structure analyses and direct transmission electron microscopy imaging, was reported.
Journal ArticleDOI
Intercalation chemistry of layered double hydroxides: recent developments and applications
Aamir I. Khan,Dermot O'Hare +1 more
TL;DR: Layered double hydroxides (LDHs) have been investigated for many years as host materials for a range of anion exchange intercalation reactions as mentioned in this paper and have been used extensively as ion-exchange materials, catalysts, sorbents and halogen absorbers.