拓扑(电路)
带隙
选择性
材料科学
相(物质)
过渡金属
晶体结构
Crystal(编程语言)
光催化
结晶学
硫化物
相变
化学物理
纳米技术
化学
催化作用
光电子学
凝聚态物理
物理
有机化学
计算机科学
冶金
组合数学
程序设计语言
数学
作者
Pengfei Da,Yao Zheng,Yang Hu,Zelong Wu,Hongyu Zhao,Yicheng Wei,Linchuan Guo,Jingjing Wang,Yanping Wei,Shibo Xi,Chun‐Hua Yan,Pinxian Xi
标识
DOI:10.1002/anie.202301802
摘要
Oriented synthesis of transition metal sulfides (TMSs) with controlled compositions and crystal structures has long been promising for electronic devices and energy applications. Liquid-phase cation exchange (LCE) is a well-studied route by varying the compositions. However, achieving crystal structure selectivity is still a great challenge. Here, we demonstrate gas-phase cation exchange (GCE), which can induce a specific topological transformation (TT), for the synthesis of versatile TMSs with identified cubic or hexagonal crystal structures. The parallel six-sided subunit (PSS), a new descriptor, is defined to describe the substitution of cations and the transition of the anion sublattice. Under this principle, the band gap of targeted TMSs can be tailored. Using the photocatalytic hydrogen evolution as an example, the optimal hydrogen evolution rate of a zinc-cadmium sulfide (ZCS4) is determined to be 11.59 mmol h-1 g-1 , showing a 36.2-fold improvement over CdS.
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