Tuning the Pt species on Nb2O5 by support-induced modification in the photocatalytic transfer hydrogenation of phenylacetylene
Tuning the Pt species on Nb2O5 by support-induced modification in the photocatalytic transfer hydrogenation of phenylacetylene
复制标题
苯乙炔光催化转移氢化中通过载体诱导修饰调节 Nb2O5 上的 Pt 物种
DOI：
10.1016/j.apcatb.2021.120554
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发表时间：
2021-12
期刊：
影响因子：
--
通讯作者：
Wang Feng
中科院分区：
文献类型：
--
作者：
Su Kaiyi;Wang Yehong;Zhang Chaofeng;Gao Zhuyan;Han Jianyu;Wang Feng
在此，我们报道了在Pt/ nb2o5光催化剂上使用载体诱导修饰策略调整光催化氢转移反应中的优势产物。在以乙醇为探针的苯乙炔光催化转化反应中，Pt/2D nb2o5纳米板上的主要产物是苯乙烯；而Pt/ Nb2O5的主要产物是h2o2。采用CO吸附的傅里叶变换红外光谱分析表明，与块体Nb2O5上的金属Pt相比，二维Nb2O5纳米片上带正电的Pt （Ptδ+）有助于苯乙炔的还原。此外，通过x射线光电子能谱和程序升温还原的结果证实，Ptδ+的存在是由于二维nb2o5纳米片通过氧转移形成Ptδ+ -O-Nb结构。本研究为光催化有机转移加氢过程中铌基催化剂的设计与应用提供了新的思路。
Herein, we reported the tuning of dominant products in the photocatalytic hydrogen transfer reaction over Pt/Nb2O5photocatalysts, using a support-induced modification strategy. In the photocatalytic conversion of phenylacetylene with ethanol as a probe reaction, the dominant product was styrene over Pt/2D Nb2O5nanoplates; in contrast, H2was the main product over the Pt/bulk Nb2O5. Compared to the metallic Pt species over bulk Nb2O5, the positively charged Pt (Ptδ+) species over 2D Nb2O5nanoplates contributed to the reduction of phenylacetylene, which was revealed by CO adsorbed Fourier transform infrared spectra. Furthermore, the present Ptδ+species were due to the formation of Ptδ+–O–Nb structure via oxygen transfer of 2D Nb2O5nanoplates, which was verified by the results of X-ray photoelectron spectra and H2temperature-programmed reduction. This work sheds light on the design and application of Nb-based catalysts in the transfer hydrogenation of organics in photocatalysis.
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DOI：
10.1126/science.abc3183
发表时间：
2020-08-14
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Bullock RM;Chen JG;Gagliardi L;Chirik PJ;Farha OK;Hendon CH;Jones CW;Keith JA;Klosin J;Minteer SD;Morris RH;Radosevich AT;Rauchfuss TB;Strotman NA;Vojvodic A;Ward TR;Yang JY;Surendranath Y
通讯作者：
Surendranath Y
影响因子：
4.9
作者：
Keizo Nakagawa;Tiantian Jia;Weiran Zheng;S. Fairclough;M. Katoh;S. Sugiyama;S. Tsang
通讯作者：
Keizo Nakagawa;Tiantian Jia;Weiran Zheng;S. Fairclough;M. Katoh;S. Sugiyama;S. Tsang
影响因子：
8.4
作者：
Huili Zhang;Qi Wu;Cong Guo;Ying Wu;Tinghua Wu
通讯作者：
Huili Zhang;Qi Wu;Cong Guo;Ying Wu;Tinghua Wu
DOI：
10.1039/c7cp02891a
发表时间：
2017-08
期刊：
Physical chemistry chemical physics : PCCP
影响因子：
--
作者：
Kousuke Nakanishi;A. Tanaka;K. Hashimoto;H. Kominami
通讯作者：
Kousuke Nakanishi;A. Tanaka;K. Hashimoto;H. Kominami
影响因子：
--
作者：
Min‐Quan Yang;Lei Shen;Yuyao Lu;S. Chee;Xin Lu;X. Chi;Zhihui Chen;Qinghua Xu;U. Mirsaidov
通讯作者：
Min‐Quan Yang;Lei Shen;Yuyao Lu;S. Chee;Xin Lu;X. Chi;Zhihui Chen;Qinghua Xu;U. Mirsaidov