Effect of Nafion loading and the novel flow field designs on innovative anode electrocatalyst for improved Direct Methanol Fuel cells performance

Stable and active methanol oxidation via anchored PtRu alloy nanoparticles on NiFe layered double hydroxides

“…Electrocatalysts were activated in N 2 -saturated 1 M KOH by cyclic voltammetry (CV) until a stable curve shape was developed. [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48] capacitance (C dl ) (Fig. S9 †) also shows similar trends: the NiFe-LDHs-CB has a much larger C dl (3.83 mF cm −2 ) than that of NiFe-LDHs (3.23 mF cm −2 ).…”

“…Electrocatalysts were activated in N 2 -saturated 1 M KOH by cyclic voltammetry (CV) until a stable curve shape was developed. 32–48 Fig. 3a illustrates the representative CV curve of (14%) Pt 1 Ru 1 /NiFe-LDHs-CB.…”

Local durability optimization of a large-scale direct methanol fuel cell: catalyst layer tuning for homogeneous operation and in-operando detection of localized hydrogen evolution

“…It is worth to mention that, particularly when dealing with samples upscale, the flow pattern of reactant distributors is of utter importance in determining local performance distribution; indeed, numerous works are present in the literature focusing on the identification of optimal distributor geometries [22][23][24][25][26][27][28]. In this work, instead, we intend to demonstrate that an alternative, or additional, approach can pursue local performance homogenization and stability improvement by optimizing local properties of the MEA given a specific a flow pattern for the distributors.…”

Effective Methanol Oxidation with Platinum Nanoparticles-Decorated Poly(2-bromomethyl-2-methyl-3,4-propylenedioxythiophene)-Coated Glassy Carbon Electrode

“…In recent years, excessive consumption of traditional fossil fuels coupled with growing global energy demand inducing fossil fuels depletion and environmental pollution have prompted an increasing interest in the development of renewable and sustainable energy devices. [1][2][3][4] Among different types of sustainable energy devices, direct methanol fuel cells (DMFCs) are one of the most important electrochemical energy conversion systems with immense potential for further development due to its significant advantages such as high efficiency, 5 low-to-zero polluting emissions, 6 ease of fuel storage, distribution, and low operation temperature. 7 However, the performance of DMFCs is restricted because of the insufficient electrocatalytic activity and poor durability of the existing catalysts.…”