Zeolite-confined Fe-site catalysts(ZFCs)have emerged as superior materials for sustainably producing high-value chemicals through CO_(2) hydrogenation,owing to their adaptable framework,customizable composition,and th...Zeolite-confined Fe-site catalysts(ZFCs)have emerged as superior materials for sustainably producing high-value chemicals through CO_(2) hydrogenation,owing to their adaptable framework,customizable composition,and thermal robustness.They excel in activating,adsorbing,and converting CO_(2) with remarkable efficiency and consistency in performance.This has sparked a surge in research interest in recent years.The review delves into the latest advancements in CO_(2) catalytic hydrogenation to olefins,alcohols,aromatics,and other liquid hydrocarbons,examining the synthesis,modification tactics,and the correlation between structure and performance across various ZFCs.Additionally,it underscores the pivotal factors affecting performance and sheds light on the mechanisms behind selectivity control in the CO_(2) hydrogenation process facilitated by ZFCs.To conclude,it presents pressing challenges and strategic recommendations to inspire the development of high-performance,durable ZFCs for CO_(2) hydrogenation applications.展开更多
Lithium-sulfur(Li-S)batteries have been puzzled by the“shuttle effect”.In the recent years,catalytic materials present a huge potential for solving this problem.However,the exploitation for catalytic activity was st...Lithium-sulfur(Li-S)batteries have been puzzled by the“shuttle effect”.In the recent years,catalytic materials present a huge potential for solving this problem.However,the exploitation for catalytic activity was still challenging in Li-S batteries.In this article,we put forward a single atom catalyst(SAC)of FeN_(4) coupled with Fe_(3)C on the N-doped carbon(FeN_(4)/Fe_(3)C@NC)by one-step pyrolysis method.The FeN_(4) and Fe_(3)C synergistically catalyze the polysulfides conversion when the N-doped carbon provides the high conductive three-dimensional skeleton in Li-S batteries.As a result,the FeN_(4)/Fe_(3)C@NC shows a specific capacity of 1100 mA·h/g at 0.2 C(1 C=1675 mA/g).In addition,the FeN_(4)/Fe_(3)C@NC maintains 99.01%of the pristine specific capacity after 100 cycles at 0.5 C,indicating the improved electrochemical performance in Li-S batteries.This work sheds new lights on the design of engineering catalysts for developing high-performance Li-S batteries.展开更多
基金the National Natural Science Foundation of China(Nos.U22A20107,U1967215,22078307,22208314,22278379,22238003,and 22002008)the Science and Technology R&D Program Joint Fund Project of Henan Provincial,China(No.222301420001)+3 种基金the Distinguished Young Scholars Innovation Team of Zhengzhou University,China(No.32320275)the Postgraduate Education Reform Project of Henan Province,China(No.2021SJGLX093Y)the National Funded Postdoctoral Researcher Program,China(No.GZC20232382)the Key Research Projects of University in Henan Province,China(No.24A150041).
文摘Zeolite-confined Fe-site catalysts(ZFCs)have emerged as superior materials for sustainably producing high-value chemicals through CO_(2) hydrogenation,owing to their adaptable framework,customizable composition,and thermal robustness.They excel in activating,adsorbing,and converting CO_(2) with remarkable efficiency and consistency in performance.This has sparked a surge in research interest in recent years.The review delves into the latest advancements in CO_(2) catalytic hydrogenation to olefins,alcohols,aromatics,and other liquid hydrocarbons,examining the synthesis,modification tactics,and the correlation between structure and performance across various ZFCs.Additionally,it underscores the pivotal factors affecting performance and sheds light on the mechanisms behind selectivity control in the CO_(2) hydrogenation process facilitated by ZFCs.To conclude,it presents pressing challenges and strategic recommendations to inspire the development of high-performance,durable ZFCs for CO_(2) hydrogenation applications.
基金National Natural Science Foundation of China(Nos.22109140,21875221,and 22075223)Project of the Distinguished Young Scholars Innovation Team of Zhengzhou University,China(No.32320275).
文摘Lithium-sulfur(Li-S)batteries have been puzzled by the“shuttle effect”.In the recent years,catalytic materials present a huge potential for solving this problem.However,the exploitation for catalytic activity was still challenging in Li-S batteries.In this article,we put forward a single atom catalyst(SAC)of FeN_(4) coupled with Fe_(3)C on the N-doped carbon(FeN_(4)/Fe_(3)C@NC)by one-step pyrolysis method.The FeN_(4) and Fe_(3)C synergistically catalyze the polysulfides conversion when the N-doped carbon provides the high conductive three-dimensional skeleton in Li-S batteries.As a result,the FeN_(4)/Fe_(3)C@NC shows a specific capacity of 1100 mA·h/g at 0.2 C(1 C=1675 mA/g).In addition,the FeN_(4)/Fe_(3)C@NC maintains 99.01%of the pristine specific capacity after 100 cycles at 0.5 C,indicating the improved electrochemical performance in Li-S batteries.This work sheds new lights on the design of engineering catalysts for developing high-performance Li-S batteries.
