Atomic-scale engineering of chemical-vapor-deposition-grown 2D transition metal dichalcogenides for electrocatalysis

Author(s): Qichen Wang ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Yongpeng Lei ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Yuchao Wang ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Yi Liu ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Chengye Song ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Jian Zeng ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Yaohao Song ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Xidong Duan ⁶ ^, ⁷ ^, ⁸ ^, ⁵ , Dingsheng Wang ⁹ ^, ¹⁰ ^, ¹¹ ^, ⁵ , Yadong Li ⁹ ^, ¹⁰ ^, ¹¹ ^, ⁵

Publication date (Electronic): 2020

Journal: Energy & Environmental Science

Publisher: Royal Society of Chemistry (RSC)

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Abstract

Focusing on the atomic-scale engineering of CVD grown 2D TMDs, we discuss the six engineering strategies to tailor the electronic structure, conductivity and electrocatalytic properties in detail. Finally, challenges and perspectives are addressed.

Abstract

Chemical vapor deposition (CVD) is recognized as a powerful tool to synthesize atomically thin two-dimensional (2D) nanomaterials with the merits of high quality and uniform thickness with high efficiency, controllability, and scalability. Benefitting from the intriguing electronic and chemical characteristics, 2D transition metal dichalcogenides (TMDs) have attracted increasing attention with regard to energy-related electrocatalysis, including H ₂ evolution, CO ₂ reduction, O ₂ reduction/evolution, I ₃ ⁻ reduction, etc. Atomic-scale tailoring of the surface and interface of CVD-grown TMDs is critical to not only improve the electronic structure and conductivity but also understand the intrinsic nature of the active sites. Therefore, a comprehensive and deeper understanding of CVD-grown 2D TMDs for use in electrocatalysis is urgently needed. In this review, the very recent advances in surface and interface engineering strategies, such as geometric dimensional control, defect engineering, doping modification, phase transition, strain tuning, and heterostructure construction, have been highlighted. Finally, the current challenges and perspectives are discussed. This review aims to provide the profound understanding and design of atomic-scale active sites in 2D TMDs for use in energy electrocatalysis.

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Most cited references 176

Record: found
Abstract: found
Article: not found

Combining theory and experiment in electrocatalysis: Insights into materials design

Zhi Seh, Jakob Kibsgaard, Colin F. Dickens … (2017)

Electrocatalysis plays a central role in clean energy conversion, enabling a number of sustainable processes for future technologies. This review discusses design strategies for state-of-the-art heterogeneous electrocatalysts and associated materials for several different electrochemical transformations involving water, hydrogen, and oxygen, using theory as a means to rationalize catalyst performance. By examining the common principles that govern catalysis for different electrochemical reactions, we describe a systematic framework that clarifies trends in catalyzing these reactions, serving as a guide to new catalyst development while highlighting key gaps that need to be addressed. We conclude by extending this framework to emerging clean energy reactions such as hydrogen peroxide production, carbon dioxide reduction, and nitrogen reduction, where the development of improved catalysts could allow for the sustainable production of a broad range of fuels and chemicals.

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Record: found
Abstract: found
Article: not found

The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets.

Manish Chhowalla, Hyeon Shin, Goki Eda … (2013)

Ultrathin two-dimensional nanosheets of layered transition metal dichalcogenides (TMDs) are fundamentally and technologically intriguing. In contrast to the graphene sheet, they are chemically versatile. Mono- or few-layered TMDs - obtained either through exfoliation of bulk materials or bottom-up syntheses - are direct-gap semiconductors whose bandgap energy, as well as carrier type (n- or p-type), varies between compounds depending on their composition, structure and dimensionality. In this Review, we describe how the tunable electronic structure of TMDs makes them attractive for a variety of applications. They have been investigated as chemically active electrocatalysts for hydrogen evolution and hydrosulfurization, as well as electrically active materials in opto-electronics. Their morphologies and properties are also useful for energy storage applications such as electrodes for Li-ion batteries and supercapacitors.

0 comments Cited 1114 times – based on 0 reviews      Review now

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Record: found
Abstract: found
Article: not found

Recent Advances in Ultrathin Two-Dimensional Nanomaterials.

Chaoliang Tan, Xiehong Cao, Xue-Jun Wu … (2017)

Since the discovery of mechanically exfoliated graphene in 2004, research on ultrathin two-dimensional (2D) nanomaterials has grown exponentially in the fields of condensed matter physics, material science, chemistry, and nanotechnology. Highlighting their compelling physical, chemical, electronic, and optical properties, as well as their various potential applications, in this Review, we summarize the state-of-art progress on the ultrathin 2D nanomaterials with a particular emphasis on their recent advances. First, we introduce the unique advances on ultrathin 2D nanomaterials, followed by the description of their composition and crystal structures. The assortments of their synthetic methods are then summarized, including insights on their advantages and limitations, alongside some recommendations on suitable characterization techniques. We also discuss in detail the utilization of these ultrathin 2D nanomaterials for wide ranges of potential applications among the electronics/optoelectronics, electrocatalysis, batteries, supercapacitors, solar cells, photocatalysis, and sensing platforms. Finally, the challenges and outlooks in this promising field are featured on the basis of its current development.