Publications by authors named "Zishan Hou"

In the quest for efficient supercapacitor materials, manganese-based layered oxide cathodes stand out for their cost-effectiveness and high theoretical capacity. However, their progress is hindered by the Jahn-Teller (J-T) distortion due to the unavoidable Mn to Mn reduction during ion storage processes. Our study addresses this challenge by stabilizing the KMnO cathode through strategic Mg substitution.

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Article Synopsis
  • The conversion of formate in alkaline solutions is important for fuel cell technology, but hydrogen adsorption on catalysts has been a challenge for efficiency.
  • A new catalyst strategy using palladium nanoparticles on a phosphorus-doped TiO substrate creates a "push-pull" effect, enhancing hydrogen release and transfer.
  • The improved Pd/TiO-P catalyst shows a mass activity of 4.38 A mg, significantly outperforming the previous Pd/TiO catalyst, indicating a major step forward in catalyst efficiency for fuel cells.
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In the quest for proficient electrocatalysts for ammonia's electrocatalytic nitrogen reduction, cobalt oxides, endowed with a rich d-electron reservoir, have emerged as frontrunners. Despite the previously evidenced prowess of CoO in this realm, its ammonia yield witnesses a pronounced decline as the reaction unfolds, a phenomenon linked to the electron attrition from its Co active sites during electrocatalytic nitrogen reduction reaction (ENRR). To counteract this vulnerability, we harnessed electron-laden phosphorus (P) elements as dopants, aiming to recalibrate the electronic equilibrium of the pivotal Co active site, thereby bolstering both its catalytic performance and stability.

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Transition metal oxides (TMOs) are key in electrochemical energy storage, offering cost-effectiveness and a broad potential window. However, their full potential is limited by poor understanding of their slow reaction kinetics and stability issues. This study diverges from conventional complex nano-structuring, concentrating instead on spin-related charge transfer and orbital interactions to enhance the reaction dynamics and stability of TMOs during energy storage processes.

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  • Manganese-based oxides (MnO) face challenges like slow charge diffusion and limited cycling stability in sodium ion storage, but a new interface design with cerium oxide (CeO) enhances their performance.
  • The CeO/MnO composite demonstrated an impressive capacity of 397 F g and maintained 92.13% capacity after 10,000 charging cycles, highlighting its efficiency and longevity.
  • Mechanistic studies indicate that the interfacial electric field (IEF) improves electron interactions and bond strength, reducing structural distortions during ion exchange, thus paving the way for better sodium ion storage solutions.
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  • Transition-metal oxides (TMOs) often face issues with low electronic conductivity and unstable performance during ion intercalation, which this study addresses.
  • The researchers developed a Ni-doped layered manganese dioxide (Ni-MnO) that features a unique Ni-O-Mn configuration, resulting in a high capacitance of 317 F g and excellent cyclic stability, preserving 81.58% of capacity after 20,000 charge cycles.
  • By enhancing π-donation to activate the t orbital, the study reveals a mechanism that improves charge transfer kinetics and structural stability, offering new insights into creating efficient and stable materials for energy storage applications.
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Internal electric field (IEF) construction is an innovative strategy to regulate the electronic structure of electrode materials to promote charge transfer processes. Despite the wide use of IEF in various applications, the underlying mechanism of its formation in an asymmetric TM-O-TM unit still remains poorly understood. Herein, the essential principles for the IEF construction at electron occupancy state level and explore its effect on hybrid capacitive deionization (HCDI) performance is systematically investigated.

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Transition metal oxides suffer from slow salt removal rate (SRR) due to inferior ions diffusion ability in hybrid capacitive deionization (HCDI). Local electric field (LEF) can efficiently improve the ions diffusion kinetics in thin electrodes for electrochemical energy storage. Nevertheless, it is still a challenge to facilitate the ions diffusion in bulk electrodes with high loading mass for HCDI.

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Background: The Shexiang Baoxin Pill (MUSKARDIA) has been used for treating coronary artery disease (CAD) and angina for more than 30 years in China. Nevertheless, methodologically sound trials on the use of MUSKARDIA in CAD patients are scarce. The aim of the study is to determine the effects of MUSKARDIA as an add-on to optimal medical therapy (OMT) in patients with stable CAD.

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Objective: To evaluate the efficacy and safety of Chinese medicinal shensongyangxin capsules in the treatment of paroxysmal atrial fibrillation.

Methods: From August 2007 to July 2008, Beijing Chaoyang Hospital conducted a multicenter study, select the eleven hospital's outpatient subjects, aged 18 to 75 years old, male or female, paroxysmal atrial fibrillation (at least one electrocardiogram diagnosis) seizure frequency ≥ 2 times/month, according to the ratio 1:1:1, subjects were randomly divided into three groups: a. shensongyangxin group, taking shensongyangxin capsule 4 + propafenone analogues 150 mg, 3 times a day; b.

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Objective: To observe the outcome of percutaneous balloon mitral valvuloplasty (PBMV) in patients with rheumatic mitral valve stenosis.

Methods: From April 1992 to November 2008, 1768 patients underwent PBMV in our hospital.Clinical and echocardiographic follow up data were analyzed in 426 patients from April 1992 to August 1998.

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Background: Warfarin is a commonly prescribed anticoagulant drug for the prevention of thromboses. To address the association of genetic factors and warfarin dosage for ethnic Han Chinese, we genotyped six candidate genes involved in the warfarin interactive pathway with focus on SNPs with reported association with warfarin dose.

Methods: We recruited a study population consisted of 318 patients receiving warfarin treatment and 995 healthy controls.

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