Zhuo Chen, Peng Yuan, Cailing Chen, Xinhuilan Wang, Jinrong Wang, Jiaqi Jia, Bambar Davaasuren, Zhiping Lai, Niveen M Khashab, Kuo-Wei Huang, Osman M Bakr, Jun Yin, Khaled N Salama
{"title":"平衡 Pd-H 相互作用:用于稳健快速氢气传感的硫醇保护钯纳米簇。","authors":"Zhuo Chen, Peng Yuan, Cailing Chen, Xinhuilan Wang, Jinrong Wang, Jiaqi Jia, Bambar Davaasuren, Zhiping Lai, Niveen M Khashab, Kuo-Wei Huang, Osman M Bakr, Jun Yin, Khaled N Salama","doi":"10.1002/adma.202404291","DOIUrl":null,"url":null,"abstract":"<p><p>The transition toward hydrogen gas (H<sub>2</sub>) as an eco-friendly and renewable energy source necessitates advanced safety technologies, particularly robust sensors for H<sub>2</sub> leak detection and concentration monitoring. Although palladium (Pd)-based materials are preferred for their strong H<sub>2</sub> affinity, intense palladium-hydrogen (Pd-H) interactions lead to phase transitions to palladium hydride (PdH<sub>x</sub>), compromising sensors' durability and detection speeds after multiple uses. In response, this study introduces a high-performance H<sub>2</sub> sensor designed from thiolate-protected Pd nanoclusters (Pd<sub>8</sub>SR<sub>16</sub>), which leverages the synergistic effect between the metal and protective ligands to form an intermediate palladium-hydrogen-sulfur (Pd-H-S) state during H<sub>2</sub> adsorption. Striking a balance, it preserves Pd-H binding affinity while preventing excessive interaction, thus lowering the energy required for H<sub>2</sub> desorption. The dynamic adsorption-dissociation-recombination-desorption process is efficiently and highly reversible with Pd<sub>8</sub>SR<sub>16</sub>, ensuring robust and rapid H<sub>2</sub> sensing at parts per million (ppm). The Pd<sub>8</sub>SR<sub>16</sub>-based sensor demonstrates exceptional stability (50 cycles; 0.11% standard deviation in response), prompt response/recovery (t<sub>90</sub> = 0.95 s/6 s), low limit of detection (LoD, 1 ppm), and ambient temperature operability, ranking it among the most sensitive Pd-based H<sub>2</sub> sensors. Furthermore, a multifunctional prototype demonstrates the practicality of real-world gas sensing using ligand-protected metal nanoclusters.</p>","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":null,"pages":null},"PeriodicalIF":27.4000,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Balancing Pd-H Interactions: Thiolate-Protected Palladium Nanoclusters for Robust and Rapid Hydrogen Gas Sensing.\",\"authors\":\"Zhuo Chen, Peng Yuan, Cailing Chen, Xinhuilan Wang, Jinrong Wang, Jiaqi Jia, Bambar Davaasuren, Zhiping Lai, Niveen M Khashab, Kuo-Wei Huang, Osman M Bakr, Jun Yin, Khaled N Salama\",\"doi\":\"10.1002/adma.202404291\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The transition toward hydrogen gas (H<sub>2</sub>) as an eco-friendly and renewable energy source necessitates advanced safety technologies, particularly robust sensors for H<sub>2</sub> leak detection and concentration monitoring. Although palladium (Pd)-based materials are preferred for their strong H<sub>2</sub> affinity, intense palladium-hydrogen (Pd-H) interactions lead to phase transitions to palladium hydride (PdH<sub>x</sub>), compromising sensors' durability and detection speeds after multiple uses. In response, this study introduces a high-performance H<sub>2</sub> sensor designed from thiolate-protected Pd nanoclusters (Pd<sub>8</sub>SR<sub>16</sub>), which leverages the synergistic effect between the metal and protective ligands to form an intermediate palladium-hydrogen-sulfur (Pd-H-S) state during H<sub>2</sub> adsorption. Striking a balance, it preserves Pd-H binding affinity while preventing excessive interaction, thus lowering the energy required for H<sub>2</sub> desorption. The dynamic adsorption-dissociation-recombination-desorption process is efficiently and highly reversible with Pd<sub>8</sub>SR<sub>16</sub>, ensuring robust and rapid H<sub>2</sub> sensing at parts per million (ppm). The Pd<sub>8</sub>SR<sub>16</sub>-based sensor demonstrates exceptional stability (50 cycles; 0.11% standard deviation in response), prompt response/recovery (t<sub>90</sub> = 0.95 s/6 s), low limit of detection (LoD, 1 ppm), and ambient temperature operability, ranking it among the most sensitive Pd-based H<sub>2</sub> sensors. 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Balancing Pd-H Interactions: Thiolate-Protected Palladium Nanoclusters for Robust and Rapid Hydrogen Gas Sensing.
The transition toward hydrogen gas (H2) as an eco-friendly and renewable energy source necessitates advanced safety technologies, particularly robust sensors for H2 leak detection and concentration monitoring. Although palladium (Pd)-based materials are preferred for their strong H2 affinity, intense palladium-hydrogen (Pd-H) interactions lead to phase transitions to palladium hydride (PdHx), compromising sensors' durability and detection speeds after multiple uses. In response, this study introduces a high-performance H2 sensor designed from thiolate-protected Pd nanoclusters (Pd8SR16), which leverages the synergistic effect between the metal and protective ligands to form an intermediate palladium-hydrogen-sulfur (Pd-H-S) state during H2 adsorption. Striking a balance, it preserves Pd-H binding affinity while preventing excessive interaction, thus lowering the energy required for H2 desorption. The dynamic adsorption-dissociation-recombination-desorption process is efficiently and highly reversible with Pd8SR16, ensuring robust and rapid H2 sensing at parts per million (ppm). The Pd8SR16-based sensor demonstrates exceptional stability (50 cycles; 0.11% standard deviation in response), prompt response/recovery (t90 = 0.95 s/6 s), low limit of detection (LoD, 1 ppm), and ambient temperature operability, ranking it among the most sensitive Pd-based H2 sensors. Furthermore, a multifunctional prototype demonstrates the practicality of real-world gas sensing using ligand-protected metal nanoclusters.
期刊介绍:
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