富氢材料作为潜在的高温超导体，同时也是实现金属氢的有效途径，已成为物理、材料等多学科的研究热点，有望成为超导家族的新成员-氢基超导体。最近发现了硫氢化合物在高压下的超导转变温度达到203 K（-70º），创造了高温超导新纪录，进一步推动了人们对富氢超导电性的研究。但是，仍存在两个关键科学问题亟待解决：（1）有些氢化物呈现出奇异的高温超导特性，然而某些氢化物的超导转变温度却很低，内在物理原因不清楚。（2）寻找到具有更高超导转变温度的富氢材料。本项目拟在多年高压研究基础上，选取典型的富氢材料为研究对象，采用原位高压实验测量结合第一性原理计算，揭示晶体结构特征、电子结构特性、氢的成键方式、氢含量等因素与超导电性之间的内在联系，获得影响富氢材料高温超导电性的一般规律，力争找到一、二种具有更高超导转变温度的富氢新材料。本项目的实施，还将为金属氢和室温超导材料等方面的研究提供新的途径和重要的数据。

Hydrogen-rich materials which are potential high-temperature superconductors, and also believed to be an effective way to the metallization of hydrogen, have attracted significant interest in lots of fields, such as physics, material science and so on. Therefore, hydrogen-rich materials are expected to become a new member of superconductor family: hydrogen-based superconductor. Very recently, the discovery of high-pressure superconductivity at 203 K (-70º) in a sulfur hydride compound has broken the previous record in copper-based superconductor of 164 K, and inspired further efforts to research the superconductivity of hydrogen-rich materials. But there are still two key scientific problems to be solved: (1) Some hydrides present very high superconducting transition temperatures (Tc), but some of them have low Tc, and the substantial physical reason is not clear. (2) Try to find one or two hydrogen-rich materials with higher Tc. So, some representative hydrogen-rich materials will be studied in this project by means of the high pressure experimental measurements combined with first-principles calculations. This project aims to explore the inner relationship between crystal structure, electronic structure, hydrogen bonding, hydrogen content and superconductivity, get a general law for hydrogen-rich materials with high Tc, based on our high pressure research for many years. Furthermore, we try to find one or two kinds of superconductors with higher Tc in hydrogen-rich materials. Through the implementation of the project, it can also provide new approach and important data for metallic hydrogen and room-temperature superconductors.