Cd/Pt Precursor Solution for Solar H2 Production and in situ Photochemical Synthesis of Pt Single-atom Decorated CdS Nanoparticles.
Cd/Pt Precursor Solution for Solar H2 Production and in situ Photochemical Synthesis of Pt Single-atom Decorated CdS Nanoparticles.
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用于太阳能制氢和原位光化学合成 Pt 单原子装饰 CdS 纳米颗粒的 Cd/Pt 前驱体溶液。
DOI：
10.1002/anie.202301239
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Sharma P
中科院分区：
文献类型：
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作者：
Sharma P
尽管人们在开发高性能析氢催化剂方面做出了广泛的努力，但这仍然是一个重大挑战。在这里，我们演示了使用 Cd/Pt 前体溶液进行显着的光催化 H2 生产 (154.7 mmol g−1h−1)，从而无需预先合成的光催化剂。此外，我们还报道了在光照射过程中同时原位合成 Pt 单原子锚定 CdS 纳米粒子（PtSA-CdSIS）。 CdSI上广泛的Pt单原子的高度分散原位结合能够增强活性位点并抑制电荷复合，从而导致极高的太阳能-氢转化效率约1 ％，并且用于制氢的表观量子产率超过91 ％（365 nm）。我们的工作不仅为最大化氢气生产效率提供了一种有前景的策略，而且还为氢气生产和高光活性 PtSA-CdSIS 纳米颗粒的合成提供了一种绿色工艺。
Despite extensive efforts to develop high‐performance H2evolution catalysts, this remains a major challenge. Here, we demonstrate the use of Cd/Pt precursor solutions for significant photocatalytic H2production (154.7 mmol g−1h−1), removing the need for a pre‐synthesized photocatalyst. In addition, we also report simultaneous in situ synthesis of Pt single‐atoms anchored CdS nanoparticles (PtSA‐CdSIS) during photoirradiation. The highly dispersed in situ incorporation of extensive Pt single atoms on CdSISenables the enhancement of active sites and suppresses charge recombination, which results in exceptionally high solar‐to‐hydrogen conversion efficiency of ≈1 % and an apparent quantum yield of over 91 % (365 nm) for H2production. Our work not only provides a promising strategy for maximising H2production efficiency but also provides a green process for H2production and the synthesis of highly photoactive PtSA‐CdSISnanoparticles.