About
Prof. Xin Xu’s group is the only domestic research group devoted to the development of density functional theory in China. Our group has proposed a series of innovational functionals and applied them to some important systems in chemistry. Specifically, our group first proposed the X3LYP functional that contains the form for the exact exchange energy density for a density that decays with Gaussian-type behavior at the long-range. X3LYP can precisely describe the hydrogen bonding systems and has been implemented in Gaussian03/09/16, Jaguar, ADF, Crystal, Orca, etc. popular quantum chemical codes. X3LYP functional has also been introduced in many academic monographs and textbooks, including the domesti…
News
2025-02-14
Breakthrough in Water Electrolysis Featured in 'Science'
    At 3:00 Beijing time on February 14, the research results of the collaborative team of Bo Zhang, Yifei Xu, Sai Duan and Xin Xu from Fudan University were published in the main issue of Science under the title of 'Ultrastable supported oxygen evolution electrocatalyst formed by ripening induced embedding' was published in the main issue of Science. Wenjuan Shi, a full-time associate researcher at the Department of …
2025-01-04
Long Feng Science Forum: Symposium on Frontiers of Theoretical Chemistry
  Prof. Xin Xu and his research team, Prof. Igor Ying Zhang, Prof. Xiao Zheng and Dr. Sai Duan, were invited to attend the Long Feng Science Forum: Symposium on Frontiers of Theoretical Chemistry, and Prof. Igor Ying Zhang was invited to give an academic presentation.
2024-12-18
The 4th Symposium for Young Scholars on Chemical Theory and Mechanisms in Development, Shanghai
  Prof. Xin Xu's research team hosted the 4th Symposium for Young Scholars on Chemical Theory and Mechanisms in Development.
2021-07-19
XYG3 and XYGJ-OS for Both Finite and Extended Systems
While being widely used to understand the chemical reactions in heterogeneous catalysis or other multidisciplinary systems, a great challenge that semilocal and hybrid density functional approximations (DFAs) are facing is to deliver a uniformly accurate description for both finite and extended systems. Herein, we perform reliable and well-converged periodic calculations of two doubly hybrid approximations (DHAs), XYG3 and XYGJ-OS, and demonstrate that the good accuracy of DHAs achieved for molecules is transferable to the semiconductors and insulators. Such an accuracy is not only for energetic properties but also for the first- and second-order response properties, which is general for different kinds of chemical environments, including simple cubic bulks, perovskite-type transition metal oxides like TiO2, and heterogeneous systems like CO adsorption on the NaCl(100) surface. The present finding has strengthened the predictive power of DFT, which not only will inspire the future development of the top-rung DFAs but also will boost their applications in multidisciplinary studies with high accuracy and efficiency.
2020-09-01
Prof. Dr. Xin Xu has been appointed as the associate editor for JACS Au.
JACS Au is a monthly open access multi-disciplinary journal devoted to the publication of manuscripts reporting significant research discoveries in all fields of chemistry. The journal considers submissions in traditional core fields such as analytical, physical, inorganic, and organic chemistry, as well as areas such as biological, medicinal, environmental, catalytic, computational, and theoretical chemistry; materials and nanoscience; chemical engineering, chemical education, and other multidisciplinary research as i…
2020-05-13
ON THE TOP RUNG OF JACOB’S LADDER OF DENSITY FUNCTIONAL THEORY: TOWARD RESOLVING THE DILEMMA OF SELF-INTERACTION ERROR AND NON-DYNAMIC CORRELATION ERROR
According to the classification of Jacob's Ladder proposed by Perdew, density functional approximations (DFAs) on the top (fifth) rung add the information of the unoccupied Kohn–Sham orbitals, which hold the promise to enter the heaven of chemical accuracy. In other words, we expect that a much higher accuracy with a broader applicability than the existing DFAs would eventually be achieved on the fifth rung. Nonetheless, Jacob's Ladder itself does not offer a recipe for how to manipulate the unoccupied Kohn–Sham orbitals on the construction of a successful fifth rung DFA. In this article, we briefly review two successful types of the fifth rung DFAs, that is, random-phase approximation (RPA) and doubly hybrid approximation (DHA). The limitations of RPA and DHA will be introduced in the context of the so-called self-interaction error (SIE)/nondynamic correlation error (NCE) dile…