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**Chapter 8**

**Abstract**

**1. Introduction**

Applications

Novel Two-Dimensional Siloxene

Material for Electrochemical

*Rajendran Ramachandran, Zong-Xiang Xu and Fei Wang*

After discovering graphene, the two-dimensional materials have gained considerable interest in the electrochemical applications, especially in energy conversion, storage, and bio-sensors. Siloxene, a novel two-dimensional low-buckled structure of Si networks with unique properties, has received the researcher's attention for a wide range of applications. Though the electronic and optical properties of siloxene have been explored in detail previously, there is a lack of electrochemistry studies of siloxene as the result of material degradation, and the investigation is still open-ended to enhance the electrochemical application. Recently, siloxene has been used for supercapacitor, lithium-ion batteries, and dopamine bio-marker detections. This chapter highlights the recent development of siloxene synthesis and its electrochemical properties in energy and sensor applications. The plannar Si structure with Si6 rings interconnected with different oxygen, hydroxyl functional groups, and large interlayer spacing of siloxene sheets can promote the active sites for enhanced electrochemical performance. This chapter provides the current state-of-the-art in the field and a perspective

Energy Storage and Sensor

for future development in the electrochemistry field of siloxene.

**Keywords:** siloxene, electrochemistry, functional groups, active sites

After discovering graphene in 2004, the two-dimensional (2D) materials have

including the electrical and thermal conductivity, magnetic, photonic and catalytic properties when compared to their bulk counterparts [1]. Over the past few years, the enormous 2D family materials like graphene [2, 3], molybdenum disulphide (MoS2) [4, 5], tungsten disulphide (WS2) [6, 7], graphitic carbon nitride (g-C3N4) [8] and recently MXene [9, 10] have been investigated for various applications in electronic, energy, catalysis and electrochemical applications. However, the electrochemistry investigation of those materials is yet to be explored in detail.

drawn significant attention in broad applications due to their unique physicochemical properties. The 2D materials such as transition metal dichalcogenides (TMDs), phosphorene and bismuthine, etc., which consists of a one-atom-thick monolayer network can exhibit different chemical and physical properties,
