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Though Sn‐Pb alloyed perovskite solar cells (PSCs) achieved great progress, there is a dilemma to further increase Sn for less‐Pb requirement. High Sn ratio (>70%) perovskite exhibits nonstoichiometric Sn:Pb:I at film surface to aggravate Sn2+ oxidation and interface energy mismatch. Here, ternary metal alloyed (FASnI3)0.7(MAPb1−xZnxI3)0.3 (x = 0–3%) is constructed for Pb% < 30% perovskite....
Selective conversion of ethane (C2H6) to high‐value‐added chemicals is a very important chemical process, yet it remains challenging owing to the difficulty of ethane activation. Here, a NiTi‐layered double hydroxide (NiTi‐LDH) photocatalyst is reported for oxidative coupling of ethane to n‐butane (n‐C4H10) by using CO2 as an oxidant. Remarkably, the as‐prepared NiTi‐LDH exhibits a high selectivity...
Direct and selective oxidation of benzene to phenol is a long‐term goal in industry. Although great efforts have been made in homogenous catalysis, it still remains a huge challenge to drive this reaction via heterogeneous catalysts under mild conditions. Herein, a single‐atom Au loaded MgAl‐layered double hydroxide (Au1‐MgAl‐LDH) with a well‐defined structure, in which the Au single atoms are located...
Photocatalytic oxygen reduction reaction (ORR) for H2O2 production in the absence of sacrificing agents is a green approach and of great significance, where the design of photocatalysts with high performance is the central task. Herein, a spatial specific S‐scheme heterojunction design by introducing a novel semiconducting pair with a S‐scheme mechanism in a purpose‐designed Janus core–shell‐structured...
Projecting a cost‐effective and highly efficient electrocatalyst for the oxygen reaction reduction (ORR) counts a great deal for Zn‐air batteries. Herein, a hierarchical core–shell ORR catalyst (Co2N/CoP@PNCNTs) is developed by embedding cobalt phosphides and/or cobalt nitrides as the core into N, P‐doped carbon nanotubes (PNCNTs) as the shell via one‐step carbonization, nitridation, and phosphorization...
Carbon‐supported metal nanocatalysts have received substantial attention for heterogeneous catalysis in industry. Hunting for suitable and impactful carbon supports that have strong interactions with metal nanocatalyst is a matter of great urgency. Herein, a well‐designed graphdiyne layer decorated on the carbon nanotubes sidewalls (CNT@GDY) serves as a novel carbon support. This unique hybrid structure...
Up to now, the silicon‐graphite anode materials with commercial prospect for lithium batteries (LIBs) still face three dilemmas of the huge volume effect, the poor interface compatibility, and the high resistance. To address the above challenges, micro–nano structured composites of graphite coating by ZnO‐incorporated and carbon‐coated silicon (marked as Gr@ZnO‐Si‐C) are reasonably synthesized via...
For Si anode materials used for lithium ion batteries (LIBs), developing an effective solution to overcome their drawbacks of large volume change and poor electronic conductivity is highly desirable. Here, the composites of ZnO‐incorporated and carbon‐coated silicon/porous‐carbon nanofibers (ZnO‐Si@C‐PCNFs) are designed and synthesized via a traditional electrospinning method. The prepared ZnO‐Si@C‐PCNFs...
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