Tailoring metal-oxide-supported PtNi as bifunctional catalysts of superior activity and stability for unitised regenerative fuel cell applications

Electrocatalytic Behavior of an Amide Functionalized Mn(II) Coordination Polymer on ORR, OER and HER

“…0.53 V corresponding to O 2 reduction. This peak potential value shifted toward a less positive potential by approximately 330 mV when compared to the case of the commercial Pt/C (40 wt.% of Pt) electrocatalyst tested in our previous work [ 2 ]. Namely, the oxygen reduction peak appears at ca.…”

“…In recent years, the energy crisis and environmental pollution have driven the development of new efficient and “green” technologies for renewable energy conversion and storage, such as water splitting, metal–air batteries and fuel cells [ 1 , 2 , 3 ]. These technologies are primarily centered around three key electrocatalytic reactions: hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR), whose efficiency largely depends on the performance of catalysts [ 4 , 5 ].…”

Steps towards highly-efficient water splitting and oxygen reduction using nanostructured β-Ni(OH)2

“…5a ) revealed a Tafel slope of −78 mV dec −1 , comparable to that of commercial Pt/C (40 wt% Pt) (−79 and −60 mV dec −1 , depending on the potential region) ( Table 3 ). 62 Mn 2 O 3 –NiO also showed two Tafel regions with slopes of −75 mV dec −1 and −103 mV dec −1 . 62 A higher Tafel slope value of −95 mV dec −1 was reported for ORR at NiCoO 2 , 63 which indicates the better catalytic performance of herein prepared Ni(OH) 2 ( Table 3 ).…”

“… 62 Mn 2 O 3 –NiO also showed two Tafel regions with slopes of −75 mV dec −1 and −103 mV dec −1 . 62 A higher Tafel slope value of −95 mV dec −1 was reported for ORR at NiCoO 2 , 63 which indicates the better catalytic performance of herein prepared Ni(OH) 2 ( Table 3 ).…”

Platinum–Dysprosium Alloys as Oxygen Electrodes in Alkaline Media: An Experimental and Theoretical Study

“…For the last few years, considerable progress has been made in understanding the ORR on Pt and Pt-based bimetallic electrocatalysts. Several investigations have been carried out to determine the role of the presence of other metals on the electrocatalytic activity [ 14 , 15 , 16 ], and much of this experimental work has indicated that the activity of Pt-based bimetallic electrocatalysts towards the ORR in alkaline media is at least as good as that of pure Pt. The presence of other elements changes the Pt-Pt bond lengths and coordination, as well as the electronic structure of the Pt 5d orbital [ 17 , 18 ].…”