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PtCu Alloy-Modified Triptycene-Based Polymer with Charge Separation for Photocatalytic Hydrogen Evolution from Water/Seawater
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2024-03-25 , DOI: 10.1021/acs.inorgchem.4c00218 Jian Zhang 1 , Xinglong Li 1 , Zheng Peng 2 , Xiuzheng Deng 1 , Yanan Wang 1 , Zhongyu Li 1 , Qian Liang 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2024-03-25 , DOI: 10.1021/acs.inorgchem.4c00218 Jian Zhang 1 , Xinglong Li 1 , Zheng Peng 2 , Xiuzheng Deng 1 , Yanan Wang 1 , Zhongyu Li 1 , Qian Liang 1
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Direct photocatalytic hydrogen from earth-abundant seawater is a great potential way to achieve sustainable and clean energy, yet unsatisfactory decomposition and rapid electron–hole pair recombination of catalysts hinder the solar-driven H2 conversion efficiency. Herein, we designed a series of PtCu alloy nanoparticle-modified porous triptycene-based polymers (PtxCu1-TCP) to construct the heterostructure for highly efficient hydrogen generation from photocatalytic water/seawater splitting. Characterizations displayed that TCP with an ultrahigh surface area can confine the agglomeration of PtCu alloy; meanwhile, the PtCu alloy can facilitate the rapid electron transfer from TCP. In addition, TCP with a stable covalent bond structure can resist the corrosion of seawater. Benefiting from these two advantages, Pt7Cu1-TCP showed a remarkably enhanced photocatalytic performance with a maximum H2 evolution rate of 3255 μmol g–1 h–1 in natural seawater with triethanolamine, which is 2.69, 116.25, and 1.08 times that of Pt-TCP, Cu-TCP, and optimal catalyst in pure water, respectively. This study provides an idea for the development of a novel catalytic system for hydrogen production from solar-driven water/seawater splitting.
中文翻译：
PtCu合金改性三蝶烯基聚合物具有电荷分离作用，用于水/海水光催化析氢
从地球储量丰富的海水中直接光催化制氢是实现可持续清洁能源的一种极具潜力的途径，但催化剂的不令人满意的分解和快速的电子-空穴对复合阻碍了太阳能驱动的H 2转化效率。在此，我们设计了一系列PtCu合金纳米颗粒改性的多孔三蝶烯基聚合物（Pt x Cu 1 -TCP）来构建异质结构，用于光催化水/海水分解高效产氢。表征表明，超高比表面积的TCP可以限制PtCu合金的团聚；同时，PtCu合金可以促进TCP的电子快速转移。此外，TCP具有稳定的共价键结构，可以抵抗海水的腐蚀。受益于这两个优点，Pt 7 Cu 1 -TCP在含有三乙醇胺的天然海水中表现出显着增强的光催化性能，最大H 2析出速率为3255 μmol g –1 h –1 ，是其2.69、116.25和1.08倍。分别在纯水中制备 Pt-TCP、Cu-TCP 和最佳催化剂。这项研究为开发太阳能驱动的水/海水分解制氢的新型催化系统提供了思路。
更新日期：2024-03-25
中文翻译：
PtCu合金改性三蝶烯基聚合物具有电荷分离作用，用于水/海水光催化析氢
从地球储量丰富的海水中直接光催化制氢是实现可持续清洁能源的一种极具潜力的途径，但催化剂的不令人满意的分解和快速的电子-空穴对复合阻碍了太阳能驱动的H 2转化效率。在此，我们设计了一系列PtCu合金纳米颗粒改性的多孔三蝶烯基聚合物（Pt x Cu 1 -TCP）来构建异质结构，用于光催化水/海水分解高效产氢。表征表明，超高比表面积的TCP可以限制PtCu合金的团聚；同时，PtCu合金可以促进TCP的电子快速转移。此外，TCP具有稳定的共价键结构，可以抵抗海水的腐蚀。受益于这两个优点，Pt 7 Cu 1 -TCP在含有三乙醇胺的天然海水中表现出显着增强的光催化性能，最大H 2析出速率为3255 μmol g –1 h –1 ，是其2.69、116.25和1.08倍。分别在纯水中制备 Pt-TCP、Cu-TCP 和最佳催化剂。这项研究为开发太阳能驱动的水/海水分解制氢的新型催化系统提供了思路。
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