Photoelectrochemical hydrogen generation employing a Cu2O-based photocathode with improved stability and activity by using NixPy as the cocatalyst
文献信息
Manjeet Chhetri, C. N. R. Rao
With the tactical integration of band edge energetics concepts in semiconducting films to reduce charge recombination and photocorrosion, an improvement in the photocurrent can be achieved by introducing CuO and NixPy into Cu2O films. Photodegradation limitations of Cu2O are overcome by the Cu2O–CuO–NixPy photocathode. NixPy, because of its excellent electrocatalytic hydrogen evolution activity, helps in obtaining better stability and activity. The individual effects of CuO and NixPy have been investigated and it is found that the activity enhancement stems mainly from the contribution of NixPy, whereas CuO helps with the unidirectional flow of photogenerated charges to prevent the photocorrosion of Cu2O. Relative to bare and modified Cu2O, Cu2O–CuO–NixPy shows a considerable reduction in the overpotential and a remarkable improvement in the photocurrent at 0 V (vs. RHE). This is the first report on the use of NixPy as the co-catalyst in a Cu2O based photocathode system to improve its photostability as well as its activity.
相关文献
Optical pressure and temperature sensing properties of Nd3+:YTaO4
Pengyu Zhou, Qingli Zhang, Xiuming Dou, Jian Wang, Baoquan Sun, Yuhua Shen, Bao Liu, Dandan Han
DOI: 10.1039/D1CP03418A
Photochemistry and UV/vis spectroscopy of hydrated vanadium cations, V+(H2O)n, n = 1–41, a model system for photochemical hydrogen evolution
Jakob Heller, Tobias F. Pascher, Dominik Muß, Christian van der Linde, Martin K. Beyer, Milan Ončák
DOI: 10.1039/D1CP02382A
Ambiguities in solvation free energies from cluster-continuum quasichemical theory: lithium cation in protic and aprotic solvents
Luigi Cavallo
DOI: 10.1039/D1CP01454D
Mechanical properties and thermal conductivity of newly introduced graphene-like borophanes: a reactive molecular dynamics study
DOI: 10.1039/D1CP01831K
The CH(X2Π) + H2O reaction: two transition state kinetics
Thanh Lam Nguyen, Jozef Peeters
DOI: 10.1039/D1CP02234B
Designing nanoscale capacitors based on twin-graphene
Jyotirmoy Deb, Harkishan Dua, Utpal Sarkar
DOI: 10.1039/D1CP02680A
An interplay of various damage channels in polyethylene exposed to ultra-short XUV/X-ray pulses
P. Babaev, J. Chalupský, A. E. Volkov
DOI: 10.1039/D1CP02199K
Theoretical study of spodium bonding in the active site of three Zn-proteins and several model systems
Rosa Llull, Gaizca Montalbán, Ivan Vidal, Rosa M. Gomila, Antonio Bauzá, Antonio Frontera
DOI: 10.1039/D1CP02150H
Electrically tunable band gap in strained h-BN/silicene van der Waals heterostructures
Douglas D. de Vargas, Rogério J. Baierle
DOI: 10.1039/D1CP02012A
您可能还喜欢
什么是2-Bromo-1-(pyrimidin-2-yl)ethanone hydrobromide(CAS号:1588441-02-4)?
2-Bromo-1-(pyrimidin-2-yl)ethanone hydrobromide是一种有机化合物,分子式为C6H5Br2N2O2。它是一种溴代化合...
在合成中是否有1-正-丁基-3-甲基咪唑鎓三氟甲烷磺酸盐(CAS号:174899-66-2)的替代品?
在合成中,可以考虑使用1-正-丁基-3-甲基咪唑鎓溴酸盐或1-正-丁基-3-甲基咪唑鎓氯酸盐作为替代品。这些化合物在性能上与1-正-丁基-3-甲基咪唑鎓三氟甲烷...
2-methyl-5-thiophen-2-ylfuran-3-carboxylic acid(CAS号:651005-90-2)的市场或研究趋势如何?
目前,2-methyl-5-thiophen-2-ylfuran-3-carboxylic acid的研究主要集中在药物化学和新型材料领域。随着生物医药和有机合...
格列吡嗪杂质H(CAS号:13554-93-3)的主要用途是什么?
格列吡嗪杂质H主要作为药物中间体或副产物存在,并无特定的工业应用。在药物生产中,它可能需要被处理掉以保证最终药物的质量。
如何储存(9ci)-4-甲氧基-1H-苯并咪唑-2-乙腈(CAS号:317817-41-7)?
(9ci)-4-甲氧基-1H-苯并咪唑-2-乙腈应储存在阴凉、干燥、通风良好的地方,避免阳光直射。使用密封的玻璃或塑料容器储存,并确保容器的密封性良好,以防止挥...
4,5,9,10-四氢苯芘(CAS号:781-17-9)应用于哪些行业?
4,5,9,10-四氢苯芘在医药行业用于作为某些药物的中间体,在聚合物行业用作添加剂提升材料的热稳定性,在传感器领域作为传感器的敏感材料,在半导体行业中用作掺杂...
处理叶酸-D4(CAS号:171777-72-3)时应注意哪些实验室安全事项?
处理叶酸-D4时应佩戴个人防护装备(PPE),如手套和实验服。操作应在通风橱内进行,以避免吸入蒸汽或粉尘。如果不慎泄露,应立即用大量清水冲洗,并通知安全人员。参...
如何处理含有6-溴-2-(三氟乙酰基)-1,2,3,4-四氢异喹啉(CAS号:252331-63-8)的废料?
含有该化合物的废料应收集到专用的容器中,并进行密封以防止挥发和泄漏。在处理前,需进行危险性评估,以确定是否需要进行化学处理。最终处置需遵循当地的危险废物管理规定...
4,5-二氟-2-甲氧基苯甲醛(CAS号:145742-34-3)的主要用途是什么?
4,5-二氟-2-甲氧基苯甲醛主要用作有机合成中的中间体,特别是在制药和农药领域。它可以作为合成其他有机化合物的原料。
5-溴-6-三氟甲基吲哚(CAS号:1198475-24-9)安全吗?
5-溴-6-三氟甲基吲哚作为一种化学试剂,具有一定的毒性,需要在通风橱中操作,并采取适当的安全措施以避免吸入、皮肤接触和眼睛刺激。应避免与皮肤和眼睛直接接触,并...
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














