High-efficiency recovery of palladium and platinum using black phosphorus for in-situ synthesis of long-term stable hydrogen evolution catalysts

Gao, Rui; Wang, Xin; Zhang, Xue; Zhang, Shumeng; Li, Xinxin; Yu, Xue‐Feng; Bai, Licheng

doi:10.1016/j.seppur.2023.123771

Cited by 4 publications

(1 citation statement)

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“…To address this issue, few-layered BP has been introduced, offering increased active sites and surface area compared to bulk crystalline BP. ,, Nonetheless, monolayer BP-often referred to as phosphorene-exhibits poor HER activity. The poor HER kinetics is attributed to the densely packed p-lone pair electrons of phosphorus atoms, resulting in a substantial hydrogen adsorption energy. − For the development of an efficient BP catalyst, pristine few-layered BP must be utilized but it suffers from degradation due to the weak van der Waals interactions among the layers. To overcome these challenges, various methods have been explored, including the functionalization of BP and combination with cocatalysts such as different organic moieties, metal oxides, and metal clusters.…”

Section: Introductionmentioning

confidence: 99%

Laser-Synthesized Ru-Anchored Few-Layer Black Phosphorus for Superior Hydrogen Evolution: Role of Acoustic Levitation

Park,

Theerthagiri,

Min

et al. 2024

ACS Appl. Mater. Interfaces

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Electrochemical water splitting, driven by processed catalysts, is the most reasonable method for hydrogen production. This study demonstrates an activation phenomenon with ruthenium (Ru) nanoclusters on few-layered black phosphorus (BP), greatly enhancing the electrocatalytic hydrogen evolution reaction (HER). Efficient BP exfoliation was achieved using acoustic levitators and pulsed laser irradiation in liquids (PLIL), yielding charge-transfer Ru-nanoclusters on modulated surfaces. Various PLIL parameters were examined for the optimal BP sheet size. After ruthenization, Ru's d-band center facilitated hydrogen adsorption via Ru−H bonding. Synergy between BP's charge-carrier properties and Ru's active sites boosted HER kinetics with an ultralow overpotential of 84 mV at 10 mA/cm 2 in KOH. Additionally, the RuO 2 || RuBP-2 electrolyzer demonstrated remarkable overall water splitting performance at ∼1.60 V at 10 mA/cm 2 . These results highlight the pivotal role of metal nanoclusters on exfoliated BP surfaces and offer a refined strategy for high-density electrocatalysts in energy conversion.

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