<br>氧原子配位诱导催化位点结构重建以增强光催化产氢,Advanced Functional Materials

当前位置： X-MOL 学术 › Adv. Funct. Mater. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

氧原子配位诱导催化位点结构重建以增强光催化产氢
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2024-03-05 , DOI: 10.1002/adfm.202400466
Weiying Pang ₁ , Xu Du ₁ , Yuting Yang ₁ , Chang Long ₂ , Yutong Li ₁ , Canyu Hu ₃ , Ruohang Xu ₄ , Meng Tian ₅ , Jiaojiao Xie ₁ , Wenjing Wang ₆ , Jun Guo ₇ , Baohui Li ₁ , Pan Zhang ₁ , Dong Fu ₁ , Kun Zhao ₁

Affiliation

过渡金属基（TMB）材料表面的氧诱导可控表面重构对催化性能有很大影响。然而，在活性位点重建过程中调节氧的配位位置具有挑战性且知之甚少。在这里，合理设计和制造了亚稳态异构催化位点，以增强光催化析氢。由于氧原子的配位位置受控，产生了新的三元催化位点Co-P(--O)，将H ₂ 光催化性能提高到20.7 mmol g ⁻¹

"点击查看英文标题和摘要"

Oxygen Atom Coordinative Position Inducing Catalytic Sites Structure Reconstruction for Enhanced Photocatalytic H2 Evolution

Oxygen-inducing controllable surface reconstruction on the transition metal-based (TMB) materials surface has a great impact on catalytic performance. However, regulating the oxygen coordinative position during the active sites reconstructive process is challenging and poorly understood. Here, the metastable isomeric catalytic site is reasonably designed and fabricated for enhancing photocatalytic hydrogen evolution. Due to the controlled coordinative position of the oxygen atom, a new ternary catalytic site Co-P(--O) is created, improving the photocatalytic performance of H₂ evolution toward 20.7 mmol g⁻¹ in 6 h and 0.56% apparent quantum efficiency. The reconstruction method not only changes the electronic state around the catalytic site but also tunes the adsorption energy of the hydrogen atom. Compared with Co-Co, Co-P, Co-O, and O-Co-P catalytic sites, the remarkable Co-P(--O) sites would drive the H-atom connecting with the Co-P bridge style achieving the best performance and excellent stability. Such a reconstructed catalytic site is also proved efficient in electrocatalysis and photo-electrocatalysis systems. In conclusion, this work provides a new insight that the controllable isomeric catalytic site reconstruction strategy can dramatically enhance the catalytic performance.

更新日期：2024-03-05

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南