One-step fabrication of a laser-induced forward transfer graphene/Cu_xO nanocomposite-based electrocatalyst to promote hydrogen evolution reaction

Abstract

Electrochemical water splitting is an attractive strategy to realize hydrogen harvesting. Exploring highly efficient electrocatalysts based non-precious material is of great significance to break the dilemma of noble metal-based materials...

Heterostructure of Semiconductors on Self-Supported Cuprous Phosphide Nanowires for Enhanced Overall Water Splitting

“…Obviously, the required η at 300 mA cm –2 for the IO/CP/CF (298 mV) is much smaller in comparison with the Pt/C–CF (406 mV). The HER activity of IO/CP/CF is also superior to the Cu-based electrocatalysts reported recently, for instance, the alloyed Cu–Ni nanocage, Ag@Cu 2 O/CF, and LIFT graphene/Cu x O@Ni foam . In Figure b, the Tafel slopes of IO/CF, CP/CF, IO/CP/CF, and Pt/C–CF are respectively 112, 91, 73, and 77 mV dec –1 , proposing the Volmer–Heyrovsky pathway toward HER .…”

“…The HER activity of IO/CP/CF is also superior to the Cu-based electrocatalysts reported recently, for instance, the alloyed Cu−Ni nanocage, 11 Ag@Cu 2 O/CF, 13 and LIFT graphene/Cu x O@Ni foam. 46 In Figure 3b, the Tafel slopes of IO/CF, CP/CF, IO/CP/CF, and Pt/C−CF are respectively 112, 91, 73, and 77 mV dec −1 , proposing the Volmer− Heyrovsky pathway toward HER. 13 The IO/CP/CF with a lower Tafel slope demonstrates its improved water dissociation kinetics.…”

Laser-Induced Graphene as a Cathode Catalyst for Microbial Fuel Cell

“…28,29 This variant of LIG boasts exceptional conductivity and catalytic activity, making it ideal for efficient power generation in microbial fuel cells (MFCs) and presenting a scalable alternative to costly catalysts like platinum. 30,31 The laser-based production technique ensures high-purity graphene with outstanding structural integrity, allowing versatile use of carbon sources, precise property control, and integration into existing manufacturing processes. 28,32 Its rapid and cost-efficient graphene production has led to applications across diverse fields like energy storage, electrocatalysis, water treatment, and sensing due to its unmatched physicochemical properties.…”

“…Laser-induced graphene (LIG) represents a distinctive layered form of graphene generated on polymer-based carbonous substrates using a CO 2 laser, offering a reagent-free and straightforward method for graphene production. , Undergoing sulfur doping through poly­(ether sulfone) (PES) results in sulfur-doped LIG, showcasing superior electrocatalytic properties attributed to heightened charge storage and the creation of more active catalytic sites via carbon–sulfur interactions. , This variant of LIG boasts exceptional conductivity and catalytic activity, making it ideal for efficient power generation in microbial fuel cells (MFCs) and presenting a scalable alternative to costly catalysts like platinum. , The laser-based production technique ensures high-purity graphene with outstanding structural integrity, allowing versatile use of carbon sources, precise property control, and integration into existing manufacturing processes. , Its rapid and cost-efficient graphene production has led to applications across diverse fields like energy storage, electrocatalysis, water treatment, and sensing due to its unmatched physicochemical properties . Notably, LIG’s antiviral, antibacterial, and antibiofouling attributes make it pertinent in energy, environmental, and biomedical domains .…”

Efficient and anti-salt Cu plasmonic enhanced porous solar evaporator

“…It is worth noticing the traditional methods to fabricate graphene are commonly complicated and expensive. Laser direct writing method from portable carbon precursors to fabricate graphene is a potential approach to promote and expand the graphene application in different fields, like supercapacity, electrocatalysts, photothermal sterilization and wearable devices [15][16][17][18][19].…”