Construction of hierarchical IrTe nanotubes with assembled nanosheets for overall water splitting electrocatalysis

Abstract

The design of efficient bifunctional catalysts for hydrogen and oxygen evolution reactions is significant for electrochemical water splitting. Here, hierarchical IrTe nanotubes (NTs) with assembled nanosheets have been prepared through...

An electrochemical modification strategy to fabricate NiFeCuPt polymetallic carbon matrices on nickel foam as stable electrocatalysts for water splitting

“…4g that in order to achieve a current density of 100 mA cm −2 , cell voltages of 1.638 mV, 1.659 mV, 1.701 mV and 1.772 mV need to be applied to the following four electrode pairs including NFFeCuPt‖NFFeCuPt, NFFeCuPt‖RuO 2 , PtC‖NFFeCuPt and PtC‖RuO 2 , respectively. The overall water splitting performance of NFFeCuPt is superior to most of the other catalysts reported recently especially at high current density, including FeCoO x –Vo–S‖CoP 3 /Ni 2 P-D, 48 Ir–C , 22 Fe 0.09 Co 0.13 –NiSe 2 , 15 Ni–Fe NP, 58 Ir@N-G-750, 59 BPIr_be, 60 IrTe NTs, 61 RuMn NSBs, 62 NiFe-MOF, 63 Co 1 Mn 1 CH/NF 64 and so on ( Fig. 4h ).…”

Noble‐Metal‐Based Hollow Mesoporous Nanoparticles: Synthesis Strategies and Applications

“…Mater. 2022, 34,2201954 Table 1. Synthetic strategies and corresponding catalytic applications of NM-based HMNs and asymmetric HMNs (AHMNs).…”

“…In comparison, when an additional reducing agent was used, the dissolved metals recrystallized further with the secondary metals and formed multimetallic HMNs. This two-step GRST strategy has successfully prepared several 1D HMNs, including bimetallic PtTe (Figure 7i-m), [21] and IrTe HMNs, [34] and trimetallic PtRuTe HMNs. [22] A sequential reduction strategy was developed to direct GRST synthesis of NM-based HMNs.…”

Electronic modulation of cobalt–molybdenum oxideviaTe doping embedded in a carbon matrix for superior overall water splitting

“…37,38 Compared with transition metal and nonmetal doping, the metalloid Te not only has higher electronegativity but also can replace the metal sites of TMOs, which effectively adjusts the electron distribution of the TMOs. 39,40 Therefore, electron-rich or deficient regions can be constructed on the surface of host TMOs, thus increasing the number of active sites for electrocatalytic water splitting. 41 In addition, to optimize the electrical conductivity and specific surface area of TMO catalysts, the support of a highly conductive carbon matrix has produced satisfactory results.…”