School of Management Engineering and E-Business, Zhejiang Gongshang University, Hangzhou, China.
School of Foreign Languages, Zhejiang Gongshang University, Hangzhou, China.
Front Public Health. 2022 Jul 6;10:896161. doi: 10.3389/fpubh.2022.896161. eCollection 2022.
The visual analysis of carbon neutrality research can help better understand the development of the research field and explore the difficulties and hot spots in the research, thus making contributions to "carbon emission reduction," environmental protection and human health. This paper makes a visual quantitative analysis of 2,819 research papers published in top international journals from 2008 to 2021 in the WOS core database. It is found that China, the United States, Britain, and Germany are leading the way in carbon neutrality research. The research hotspots are mainly divided into three dimensions: (1) biomass energy and the negative effects it might bring; (2) ways and methods of electrochemical reduction of carbon dioxide; (3) catalysts and catalytic environment. The research mainly went through the conceptual period of 1997-2007, the exploration period of bioenergy from 2008 to 2021, the criticized period of bioenergy sources from 2011 to 2013, and the carbon dioxide electroreduction period from 2013 to the present. In the future, the research direction of biomass energy is to find one kind of biomass energy source which can be stored in a low-carbon way, produced in large quantities at a low cost, and will not occupy forestland. The electrolysis of water to produce hydrogen and the synthesis of fuel with CO are two major research directions at present, whose aims are to find the suitable catalyst and environment for the reaction. Besides, more research can be done on "carbon neutrality" policies so as to reduce carbon dioxide emissions from the source, develop a low-carbon economy and protect human health.
碳中和研究的可视化分析有助于更好地了解研究领域的发展，并探索研究中的困难和热点，从而为“减排”、环境保护和人类健康做出贡献。本文对 WOS 核心数据库中 2008 年至 2021 年发表的 2819 篇顶级国际期刊上的研究论文进行了可视化定量分析。结果表明，中国、美国、英国和德国在碳中和研究方面处于领先地位。研究热点主要分为三个维度：（1）生物质能源及其可能带来的负面影响；（2）电化学还原二氧化碳的方法和途径；（3）催化剂和催化环境。研究主要经历了 1997-2007 年的概念期、2008-2021 年的生物能源探索期、2011-2013 年的生物能源源批判期和 2013 年至今的二氧化碳电还原期。未来，生物质能源的研究方向是寻找一种可以以低碳方式储存、低成本大量生产且不会占用林地的生物质能源。电解水制氢和用 CO 合成燃料是目前的两个主要研究方向，其目的是找到适合反应的催化剂和环境。此外，可以对“碳中和”政策进行更多研究，以从源头减少二氧化碳排放，发展低碳经济，保护人类健康。
