Atomic-level orbital coupling in a tri-metal alloy site enables highly efficient reversible oxygen electrocatalysis

Abstract

Complex multi-metallic alloys with ultra-small sizes have received extensive attention in the fields of Zn-air battery and water splitting, because of their unique advantages including adjustable composition, tailorable active site,...

Enhancing Catalytic Performance with Sol‐Gel Hydrotalcite‐Derived Nickel Oxide Catalysts for Dry Reforming of Methane: An Examination on Reactivity and Coke Formation

“…The Ni 2p 3/2 spectrum is decomposed as described in literature [86,87] . In the spent Sg OxMix sample, additional features at a binding energy of 852.2 [86,88] eV and spin‐orbit of 17 eV are attributed to Ni 0 formation at the surface with strong metal‐support interactions, [89] quantified as 20 % of the Ni 2p 3/2 peak (See Table 6).…”

A macroporous carbon nanoframe for hosting Mott–Schottky Fe–Co/Mo2C sites as an outstanding bi-functional oxygen electrocatalyst

“…The electron transfer number (n) involved in the process of the ORR was quantified using the rotating ring-disk electrode, resulting in a calculated n value of approximately 4 for the Fe-Co/ Mo 2 C@NCF. 55,56 The yield of peroxide species also proves negligible, as deduced from eqn (1) and ( 2). This observation suggests that the Fe-Co/Mo 2 C@NCF catalyst can effectively initiate the ORR process via a desirable and evident four-electron mechanism, highlighting its potential as an exceptionally efficient catalyst for the ORR, as illustrated in Fig.…”

Flexible Strain-Sensitive Sensors Assembled from Mussel-inspired Hydrogel with Tunable Mechanical Properties and Wide Temperature Tolerance in Multiple Application Scenarios

“…In the sports field, human motion monitoring enables the evaluation of athletes’ performance and physical fitness, while in the medical field, it plays a crucial role in diagnosing and guiding patients’ physical rehabilitation. , For instance, monitoring heart rate and running stride allows for customized adjustments to athlete running details, while monitoring a patient’s pulse and limb bending ability enables an assessment of their condition. Recently, the application of wearable motion sensors has received extensive attention due to their flexibility, accuracy, and real-time reminders. − However, most of these electronic devices are comprised of rigid materials (e.g., metals, − inorganic semiconductors, − and carbon materials, − etc.). This strategy provided excellent reliability and conductivity but caused a mechanical strength mismatch at the device/skin interface and wearing discomfort.…”