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Chemically functionalized phosphorenes and their use in the water splitting reaction
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2022-06-06 , DOI: 10.1039/d2ta01932a Pratap Vishnoi 1 , Aditi Saraswat 1 , C. N. R. Rao 1
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2022-06-06 , DOI: 10.1039/d2ta01932a Pratap Vishnoi 1 , Aditi Saraswat 1 , C. N. R. Rao 1
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In the last 7 years, phosphorene (or few layer black phosphorus) has emerged as not only a superior optoelectronic material, but also a potential catalyst for the hydrogen evolution reaction (HER) from water splitting owing to its thickness dependent bandgap, broad spectrum light absorption, high charge-carrier mobility, and high density of surface-active sites. However, pristine phosphorene produces trace amounts of H2 primarily due to its poor ambient stability and a large positive change in the Gibbs free energy of hydrogen (H*) adsorption/desorption (ΔGH* > 0). Due to the recent surge of interest in metal-free HER catalysts, there have been many successful efforts on enhancing the stability as well as the catalytic activity of phosphorene through chemical functionalization, metal doping, and 2D heterocomposites. In this perspective, we present different types of interactions, including covalent, coordination, electrostatic, van der Waals, charge-transfer, and interfacial, which have been utilized in preparing modified phosphorenes. Then, we assess the noteworthy properties of phosphorene, which make it an efficient HER catalyst and discuss the developments in photocatalytic, electrocatalytic, and photo-electrocatalytic means of H2 production using phosphorene based catalysts. We conclude the perspective with suggestions for exciting future developments.
中文翻译：
化学官能化的磷烯及其在水分解反应中的用途
在过去的 7 年中，磷烯（或几层黑磷）不仅是一种优异的光电材料，而且由于其厚度依赖的带隙、宽光谱光，它还成为水分解制氢反应 (HER) 的潜在催化剂。吸收、高载流子迁移率和高密度的表面活性位点。然而，原始磷烯产生痕量的 H 2主要是由于其较差的环境稳定性和氢的吉布斯自由能 (H*) 吸附/解吸 (Δ G H *) 的较大正变化> 0)。由于最近对无金属 HER 催化剂的兴趣激增，已经通过化学功能化、金属掺杂和二维异质复合材料来提高磷烯的稳定性和催化活性方面取得了许多成功。从这个角度来看，我们提出了不同类型的相互作用，包括共价、配位、静电、范德华、电荷转移和界面，它们已用于制备改性磷烯。然后，我们评估了磷烯的值得注意的特性，使其成为高效的 HER 催化剂，并讨论了使用磷烯基催化剂生产H 2的光催化、电催化和光电催化手段的发展。我们以令人兴奋的未来发展建议来结束这一观点。
更新日期：2022-06-06
中文翻译：
化学官能化的磷烯及其在水分解反应中的用途
在过去的 7 年中，磷烯（或几层黑磷）不仅是一种优异的光电材料，而且由于其厚度依赖的带隙、宽光谱光，它还成为水分解制氢反应 (HER) 的潜在催化剂。吸收、高载流子迁移率和高密度的表面活性位点。然而，原始磷烯产生痕量的 H 2主要是由于其较差的环境稳定性和氢的吉布斯自由能 (H*) 吸附/解吸 (Δ G H *) 的较大正变化> 0)。由于最近对无金属 HER 催化剂的兴趣激增，已经通过化学功能化、金属掺杂和二维异质复合材料来提高磷烯的稳定性和催化活性方面取得了许多成功。从这个角度来看，我们提出了不同类型的相互作用，包括共价、配位、静电、范德华、电荷转移和界面，它们已用于制备改性磷烯。然后，我们评估了磷烯的值得注意的特性，使其成为高效的 HER 催化剂，并讨论了使用磷烯基催化剂生产H 2的光催化、电催化和光电催化手段的发展。我们以令人兴奋的未来发展建议来结束这一观点。
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