Ganoderma‐Like MoS<sub>2</sub>/NiS<sub>2</sub> with Single Platinum Atoms Doping as an Efficient and Stable Hydrogen Evolution Reaction Catalyst

Guan, Yongxin; Feng, Yangyang; Wan, Jing; Yang, Xiaohui; Fang, Ling; Gu, Xiao; Liu, Ruirui; Huang, Zhengyong; Li, Jian; Luo, Jun; Liu, Changming; Wang, Yu

doi:10.1002/smll.201800697

Cited by 69 publications

(47 citation statements)

References 29 publications

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“…The result of elemental analysis (EA) revealed 5.17 wt% nitrogen content of in Pt 1 /N–C (Supplementary Table 2). High BET area (595 m 2 g –1 ) was found for Pt 1 /N–C (Supplementary Table 2), and it was reported that high-surface-area structures could facilitate the atomic dispersion of metal species 37 .…”

Section: Resultsmentioning

confidence: 95%

A versatile route to fabricate single atom catalysts with high chemoselectivity and regioselectivity in hydrogenation

et al. 2019

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Preparation of single atom catalysts (SACs) is of broad interest to materials scientists and chemists but remains a formidable challenge. Herein, we develop an efficient approach to synthesize SACs via a precursor-dilution strategy, in which metalloporphyrin (MTPP) with target metals are co-polymerized with diluents (tetraphenylporphyrin, TPP), followed by pyrolysis to N-doped porous carbon supported SACs (M 1 /N-C). Twenty-four different SACs, including noble metals and non-noble metals, are successfully prepared. In addition, the synthesis of a series of catalysts with different surface atom densities, bi-metallic sites, and metal aggregation states are achieved. This approach shows remarkable adjustability and generality, providing sufficient freedom to design catalysts at atomic-scale and explore the unique catalytic properties of SACs. As an example, we show that the prepared Pt 1 /N-C exhibits superior chemoselectivity and regioselectivity in hydrogenation. It only converts terminal alkynes to alkenes while keeping other reducible functional groups such as alkenyl, nitro group, and even internal alkyne intact.

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Section: Resultsmentioning

confidence: 95%

A versatile route to fabricate single atom catalysts with high chemoselectivity and regioselectivity in hydrogenation

et al. 2019

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“…Single metal atom doped MoS 2 have been also demonstrated to be highly efficient electrocatalysts toward HER. The metal atoms mainly acted as modifiers to modulate the electronic structure and trigger the activity enhancement of the MoS 2 support, which was first reported by Deng et al Since then, several kinds of Pt, Pd, Ni, Fe, and Mn atoms modified MoS 2 have been synthesized and evacuated their HER activity 64,65b,66–68. Experimental and theoretical results suggested that 1) metal substitution occurs at the molybdenum site, simultaneously optimizing the adsorption behavior of H* on the neighboring S active sites, and 2) the metal atom doping may induce the phase transformation from 2H to 1T, thus improving the conductivity.…”

Section: Electrocatalytic Performancementioning

confidence: 94%

“…In other works, Mn atom doped MoS 2 and Ni atom doped SnS 2 have been obtained by hydrothermal method . For another method, atom doped TMDs were obtained through doping metal atom into the as‐prepared TMDs by calcination, such as the Co, Pt, and Ni atom doped MoS 2 and WS 2 . For example, Luo et al synthesized Pd atom doped MoS 2 through ultrasonic mixing of as‐prepared MoS 2 and Pd(OAc) 2 , followed by thermal treatment at 60 °C .…”

Section: Synthesis Of Sacs In 2d Materialsmentioning

confidence: 99%

Modulating the Electronic Structure of Single‐Atom Catalysts on 2D Nanomaterials for Enhanced Electrocatalytic Performance

Zhu

Peng

et al. 2019

Small Methods

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Single‐atom catalysts (SACs) on 2D nanomaterials have great potential as efficient and low‐cost electrocatalysts for clean energy technologies. The coordination environments, as well as the physicochemical properties of the 2D supports, play key roles in tuning the catalytic activity and reaction mechanism of the single‐atom centers. This review first summarizes the suitable synthetic strategies of single‐atom on different 2D supports. The methods that facilitate the formation of relative homogeneous structure and enable the regulation of the surrounding atomic environment of metal center are discussed. Furthermore, the recent progress of SACs for energy‐related electrochemical applications is reviewed, including oxygen reduction reaction, hydrogen evolution reaction, oxygen evolution reaction, CO2 reduction reaction, and nitrogen reduction reaction. The strategies about modulation of the electronic structure of single‐atom for enhanced performance are highlighted, together with a discussion of the current issues and the prospects of this field.

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“…On the basis of theoretical studies, the Gibbs free energy change of H‐adsorption (Δ G H ) on surface sites is related to the HER activity of a catalyst . The MH bond should be neither too strong nor too weak to achieve the optimal performance, which obeys the Sabatier principle in catalysis .…”

Section: Introductionmentioning

confidence: 99%

Conductive Molybdenum Sulfide for Efficient Electrocatalytic Hydrogen Evolution

Gao

Wan

et al. 2018

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Molybdenum sulfide (MoS2) is a layered material with high activity for electrocatalytic hydrogen evolution reaction (HER). In conventional MoS2, the high electrical resistance between the layers hampers the bulk charge transfer and therefore greatly limits its performance in electrolysis. Herein, ultrathin MoS2 nanosheets with bent layers on reduced graphene oxide (RGO) are reported. In sharp contrast to the bulk MoS2, the resulting MoS2 has mostly 1 or 2 layers, and the layer distance is significantly expanded to ≈1 nm. From computational studies, the prepared MoS2 with limited layer numbers and expanded layer distances has similar physical and chemical features with single‐layer MoS2. Importantly, the bent single layer is electrically conductive and is intrinsically more active than a normal flat single layer. In addition, the unusual features of confined sizes and distorted lattices in the prepared MoS2 can bring about plentiful active sites and are beneficial for mass diffusion during electrocatalysis. The hybrid material exhibits high activity for electrocatalytic HER, affording a current density of 10 mA cm−2 at a low overpotential of 66 mV.

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Ganoderma‐Like MoS₂/NiS₂ with Single Platinum Atoms Doping as an Efficient and Stable Hydrogen Evolution Reaction Catalyst

Cited by 69 publications

References 29 publications

A versatile route to fabricate single atom catalysts with high chemoselectivity and regioselectivity in hydrogenation

A versatile route to fabricate single atom catalysts with high chemoselectivity and regioselectivity in hydrogenation

Modulating the Electronic Structure of Single‐Atom Catalysts on 2D Nanomaterials for Enhanced Electrocatalytic Performance

Conductive Molybdenum Sulfide for Efficient Electrocatalytic Hydrogen Evolution

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Ganoderma‐Like MoS2/NiS2 with Single Platinum Atoms Doping as an Efficient and Stable Hydrogen Evolution Reaction Catalyst

Cited by 69 publications

References 29 publications

A versatile route to fabricate single atom catalysts with high chemoselectivity and regioselectivity in hydrogenation

A versatile route to fabricate single atom catalysts with high chemoselectivity and regioselectivity in hydrogenation

Modulating the Electronic Structure of Single‐Atom Catalysts on 2D Nanomaterials for Enhanced Electrocatalytic Performance

Conductive Molybdenum Sulfide for Efficient Electrocatalytic Hydrogen Evolution

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Ganoderma‐Like MoS₂/NiS₂ with Single Platinum Atoms Doping as an Efficient and Stable Hydrogen Evolution Reaction Catalyst