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恭喜中山大學(xué)博士使用NE-PE02型等離子表面處理儀處理碳納米管在《Advanced Science》發(fā)表論文《Remarkable active site utilization in edge-hosted-N doped carbocatalysts for Fenton-like reaction》。

論文摘要如下：

Improving the utilization of active sites in carbon catalysts is significant for various catalytic reactions, but still challenging, mainly due to the lack of strategies for controllable introduction of active dopants. Herein, a novel "Ar plasma etching-NH3 annealing" strategy is developed to regulate the position of active N sites, while maintaining the same nitrogen species and contents. Theoretical and experimental results reveal that the edge-hosted-N doped carbon nanotubes (E-N-CNT), with only 0.29 at.% N content, show great affinity to peroxymonosulfate (PMS), and exhibit excellent Fenton-like activity by generating singlet oxygen (1O2), which can reach as high as 410 times higher than the pristine CNT. The remarkable utilization of edge-hosted nitrogen atom is further verified by the edge-hosted-N enriched carbocatalyst, which shows superior capability for 4-chlorophenol degradation with a turnover frequency (TOF) value as high as 3.82 min-1, and the impressive TOF value can even surpass those of single-atom catalysts. This work proposes a controllable position regulation of active sites to improve atom utilization, which provides a new insight into the design of excellent Fenton-like catalysts with remarkable atom utilization efficiency.

論文中用來處理碳納米管的設(shè)備為我司小型實(shí)驗(yàn)型等離子表面處理儀NE-PE02，氬等離子體處理可以有效的在碳納米管表面產(chǎn)生缺陷。缺陷的引入更有利于后續(xù)N原子替換碳納米管中的C原子形成氮摻雜，而氮摻雜會(huì)改變碳納米管相鄰碳原子的電子結(jié)構(gòu)和化學(xué)環(huán)境，加速電子轉(zhuǎn)移，從而提高碳納米管的反應(yīng)活性.

部分論文截圖：

NE-PE02是一款實(shí)驗(yàn)型等離子處理系統(tǒng)，廣泛應(yīng)用于科研院校，企業(yè)研發(fā)單位和小批量生產(chǎn)等場(chǎng)景，設(shè)備主要用途如下：

1、清洗：去除有機(jī)物、氧化物、金屬鹽、納米級(jí)微粒污染物等

2、活化：親疏水改性、表面能提升、官能團(tuán)引入、生物相容性改善等

3、刻蝕：表面圖案化、表面微刻蝕、改變表面形貌粗糙度等

4、鍵合：PDMS等微流控器件鍵合

5、去膠：光刻膠灰化、掃底膜等

為回饋科研工作者對(duì)納恩科技儀器的支持與信任，推動(dòng)國(guó)內(nèi)科研事業(yè)的發(fā)展，納恩科技將開展【2024年科研論文獎(jiǎng)勵(lì)計(jì)劃】活動(dòng)，對(duì)于使用我司儀器，有研究成果的第一作者提供學(xué)術(shù)獎(jiǎng)金。