Two-Dimensional Layered Materials: High-Efficient Electrocatalysts for Hydrogen Evolution Reaction

Abstract

Hydrogen production via water splitting is considered to be one of the most promising technologies in the future hydrogen economy, where the critical challenge in this technology is exploring high-efficient and cost-effective electrocatalysts. Currently, extensive works from both experimental and theoretical investigations have shown that two-dimensional (2D) layered materials can be highly energetic electrocatalysts for electrically driven hydrogen production. Herein, recent progress in 2D layered materials such as electrocatalysts, including graphene, graphitic carbon nitride, transitional-metal dichalcogenides, and MXenes for the hydrogen evolution reaction (HER) will be systematically discussed and summarized. This review provides a broad overview on a wide range of strategies to design and fabricate 2D layered materials as electrocatalysts with high-catalytic performance for HER and aims to give potential avenues for the design of catalysts for commercial applications. In addition, the key scientific issues to address the 2D layered materials as HER catalysts are highlighted, and the perspective on the future development is given at the end.

Molybdenum Disulfide Nanosheets Decorated with Platinum Nanoparticle as a High Active Electrocatalyst in Hydrogen Evolution Reaction

“…Afterward, MoS 2 has taken back popularity, and a slew of new techniques have arisen to improve its HER electrocatalytic performance. [ 26 ]. According to the recent work, the HER activity of MoS 2 is highly related to the exposed edges, while due to its semiconductive nature, it has poor conductivity [ 27 ].…”

Materials Research Directions Towards a Green Hydrogen Economy: A Review

“…Concerning the almost equally popular nanosheets, materials chemistry has been enamored with this 2-dimensional materials for the last 15 years, and a diverse set of products can be convinced to form into atomically thin dimensions to give rise to novel and useful phenomena for catalysis. 19 When combined with other materials (into nanocomposites), high surface area catalysts can be prepared which take advantage of nanoscale effects such as quantum confinement 20 and surface plasmon resonance, 21 as well as interfacial effects including the aforementioned semiconductor heterojunctions and Schottky junctions. 22 In addition to the transition metal dichalcogenides 23 (e.g.…”

Anion Vacancy Engineering in Electrocatalytic Water Splitting

“…In contrast, the strong adsorption makes Heyrovsky/Tafel step rate‐limited. Consequently, modulating the adsorption energy (Δ G ) to a near‐zero value is a potent method to improve the activity of electrocatalysts, [46] which can be feasibly and efficiently realized by anion vacancy engineering.…”