Novel Pd/MOF electrocatalyst for hydrogen evolution reaction

Nie, Ming; Sun, Haiyi; Lei, Dan; Kang, Shuai; Liao, Jinhui; Guo, Peitao; Xue, Zhenhong; Xue, Fengjuan

doi:10.1016/j.matchemphys.2020.123481

Cited by 26 publications

(14 citation statements)

References 43 publications

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“…From the perspective of both the morphology and size control, a spherical palladium‐based MOF (denoted as Pd@MOF) with a small radius of 2.2 μm and a low Pd loading was recently synthesized via a facile two‐step approach based on the host–guest chemistry. [ 60 ] The as‐prepared MOF‐HGCC achieved remarkable promotion for H 2 generation via a Volmer–Heyrovsky mechanism with an exceptional electrocatalytic HER performance under an acidic environment, which was ascribed to the intrinsically high porosity and large specific surface area of MOF as well as the synergistic effect between Pd and MOF. On the other hand, the distribution and catalytic activities of noble metal components also play a crucial role in the enhancement of precious‐metal‐based MOF‐HGCCs’ cost‐effectiveness.…”

Section: Mof‐based Host–guest Composites For Electrocatalysismentioning

confidence: 99%

Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

et al. 2021

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Electrocatalysis is at the heart of many significant chemical transformation processes and advanced clean energy technologies. Traditional noble/transition metal oxides are widely used as electrocatalysts; however, they often suffer from intrinsic disadvantages, including low atom utilization, small surface area, and unfavorable tunability. Metal–organic frameworks (MOFs), as a new family of catalytic materials, are attracting extensive attention due to their unique physicochemical properties. The tremendous pristine MOF‐based materials are created using various synthetic approaches and further used for important energy conversions. Herein, a systematic overview on the unique merits and the state‐of‐the‐art design of MOF‐based electrocatalysts is offered. This review also presents recent advances in the development of various pristine MOFs and MOF‐based host–guest composite catalysts for electrocatalysis (i.e., oxygen reduction reaction, hydrogen oxidation reaction, hydrogen evolution reaction, oxygen evolution reaction, and CO2 reduction reaction) and discusses the future challenges and opportunities in this emerging field.

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Section: Mof‐based Host–guest Composites For Electrocatalysismentioning

confidence: 99%

Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

et al. 2021

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“…Finally, carbon black was ground with Ni L1 -300-Pd to enhance the conductivity in order to further improve the HER performance. In 0.5 M H 2 SO 4 electrolyte, the Ni L1 -300-Pd/carbon blend successfully reduced the overpotential down to 293 mV at the current density of 10 mA/cm 2 and a Tafel slope of 97 mV/dec, thus achieving HER activity comparable with that of some of the topical nickel/palladium-enabled materials (e.g., the overpotential at 10 mA/cm 2 and Tafel slope of THTA-Ni single layer: 315 mV, 76 mV/dec; Ni@C 2 N: 450 mV, 165 mV/dec; Pd@C2N: 289 mV, 188 mV/dec). − The thermal treatment of Ni L1 as well as the metal loading steps can likely be further modulated for potentially better electrocatalytic properties.…”

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confidence: 99%

Linker Deficiency, Aromatic Ring Fusion, and Electrocatalysis in a Porous Ni₈-Pyrazolate Network

Deng

Zhang

et al. 2020

Inorg. Chem.

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The cruciform linker molecule here features two designer functions: the pyrazole donors for framework construction, and the vicinal alkynyl units for benzannulation to form nanographene units into the Ni 8 -pyrazolate scaffold. Unlike the full 12 connections of the Ni 8 (OH) 4 (H 2 O) 2 clusters in other Ni 8pyrazolate networks, significant linker deficiency was observed here, leaving about half of the Ni(II) sites capped by acetate ligands, which can be potentially removed to open the metal sites for reactivity. The crystalline Ni 8 -pyrazolate scaffold also retains the crystalline order even after thermal treatments (up to 300 °C) that served to partially graphitize the neighboring alkyne units. The resultant nanographene components enhance the electroactive properties of the porous hosts, achieving hydrogen evolution reaction (HER) activity that rivals that of topical nickel/palladium-enabled materials.

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“…[11][12][13] Besides, supported noble metal heterogeneous MOFs have formed a large number of effective catalysts used in practical applications. 14 Recently, progresses in the applications of Pd-supported MOFs to propel catalyze organic transformations have been well documented. [15][16][17] In addition, several MOFs loaded Pd have been developed to catalyze the reaction of vanillin HDO reaction.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of Pd@MOF catalyst and its application for High Selective Hydrogenation and Hydrodeoxygenation of Biomass-Derived Compounds

Liu¹,

Wei

Zhang³

et al. 2022

Preprint

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High selective hydrogenation and hydrodeoxygenation of biomass-derived compounds are still challenging especially under mild reaction conditions using heterogeneous catalysis. Here, we reported a one-step synthesis method that successfully prepared Pd species immobilized on NH2-MIL-125 (Ti) MOF frameworks which were named Pd@MOF and used as a highly efficient hydrodeoxygenation catalyst for the reduction of vanillin to 2-methoxy-4-methyl phenol in excellent yield with an atm of H2 pressure at room temperature. Pd(PPh3)4 was dispersed in a solvent containing the MOF precursors. Among them, the PPh3 ligand could be oxidized to remove and Pd particles in situ doped in MOF framework during the solvothermal process. Compare to immersed-Pd/MOF and Pd-MOF, Pd@MOF has higher catalytic efficiency because the smaller Pd particles encapsulated in MOF inhibit Pd over oxidation. Moreover, the different reduction products could be obtained selectively by tuning reaction time, and the catalyst realized to catalyze the highly effective transformation of a variety of biomass-derived compounds.

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Novel Pd/MOF electrocatalyst for hydrogen evolution reaction

Cited by 26 publications

References 43 publications

Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

Linker Deficiency, Aromatic Ring Fusion, and Electrocatalysis in a Porous Ni₈-Pyrazolate Network

Facile synthesis of Pd@MOF catalyst and its application for High Selective Hydrogenation and Hydrodeoxygenation of Biomass-Derived Compounds

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Novel Pd/MOF electrocatalyst for hydrogen evolution reaction

Cited by 26 publications

References 43 publications

Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

Linker Deficiency, Aromatic Ring Fusion, and Electrocatalysis in a Porous Ni8-Pyrazolate Network

Facile synthesis of Pd@MOF catalyst and its application for High Selective Hydrogenation and Hydrodeoxygenation of Biomass-Derived Compounds

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Linker Deficiency, Aromatic Ring Fusion, and Electrocatalysis in a Porous Ni₈-Pyrazolate Network